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A novel antifungal peptide, SP1.2, from Rhodopseudomonas palustris against the rice blast pathogen 一种新的抗真菌肽 SP1.2,来自稻瘟病红假单胞菌(Rhodopseudomonas palustris),可对抗稻瘟病病原体。
IF 3.8 1区 农林科学
Pest Management Science Pub Date : 2024-08-23 DOI: 10.1002/ps.8387
Xiyang Wu, Yingfei Qin, Chenggang Li, Xin Zhang, Xinqiu Tan, Yong Liu, Yue Chen, Deyong Zhang
{"title":"A novel antifungal peptide, SP1.2, from Rhodopseudomonas palustris against the rice blast pathogen","authors":"Xiyang Wu,&nbsp;Yingfei Qin,&nbsp;Chenggang Li,&nbsp;Xin Zhang,&nbsp;Xinqiu Tan,&nbsp;Yong Liu,&nbsp;Yue Chen,&nbsp;Deyong Zhang","doi":"10.1002/ps.8387","DOIUrl":"10.1002/ps.8387","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Rice blast has a significant detrimental impact on rice yields, so developing efficient biological control technologies is an effective means for rice blast prevention and control. The GroEL protein has proven to be effective at preventing and managing the pathogenicity of rice blast.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>Here, we analyzed the amino acid sequence of the GroEL protein and synthesized the ‘60 kDa chaperonin signature’ (350–373 amino acids) peptide SP1.2, which has potent antifungal activity. Notably, the SP1.2 peptide exhibited potent fungicidal activity against <i>Magnaporthe oryzae</i>, effectively inhibiting appressorium germination. Electron microscopy revealed that SP1.2 disrupted the fungal plasma membrane and bound to multiple bioactive phosphoinositides <i>in vitro</i>, triggering the production of reactive oxygen species. Furthermore, it also caused an increase in the acetylation of <i>M. oryzae</i> and induced autophagy in cells. The spray application of SP1.2 significantly reduced the number of disease spots caused by the fungal pathogen <i>M. oryzae</i> in rice, enhancing the defense response of rice plants. Field trials showed that the control effect was 64.59% after spraying SP1.2.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>Our study illustrates the antifungal activity of the structurally unique SP1.2 peptide against plant fungal pathogens and paves the way for the future development of this class of peptides as antifungal agents. © 2024 Society of Chemical Industry.</p>\u0000 </section>\u0000 </div>","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"80 12","pages":"6501-6510"},"PeriodicalIF":3.8,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142046038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of ttk on development and courtship of male Nilaparvata lugens ttk对雄性Nilaparvata lugens发育和求偶的影响
IF 3.8 1区 农林科学
Pest Management Science Pub Date : 2024-08-22 DOI: 10.1002/ps.8381
Bo Feng, Yang Hu, Fang-Hai Wang
{"title":"Effects of ttk on development and courtship of male Nilaparvata lugens","authors":"Bo Feng,&nbsp;Yang Hu,&nbsp;Fang-Hai Wang","doi":"10.1002/ps.8381","DOIUrl":"10.1002/ps.8381","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>The transcription product of <i>tramtrack</i> (<i>ttk</i>) is an important transcription factor which plays many roles in the regulation of the development, differentiation and chromosome recombination of organisms. Few studies have been reported on the specific functions of <i>ttk</i> in other insects except <i>Drosophila melanogaster</i>. Our aims are to reveal the <i>ttk</i> effects on development and courtship of male rice pest brown planthopper (BPH), <i>Nilaparvata lugens</i>.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>In this study, we first assayed spatiotemporal expression of <i>ttk</i> in BPH, then treated the fourth nymphs of BPH with ds<i>ttk</i>. We found most individuals died before emerging to adults, the adult eclosion rate was only 18.89%. No courtship behavior was found in individuals injected with d<i>sttk</i>. Further research showed that the main frequency of courtship vibration signal (CVS) 431.3 Hz in the individuals injected with ds<i>ttk</i> was significantly higher than 223 Hz in the individuals injected with ds<i>GFP</i>, and female adults nearly had no response to the 431.3 Hz CVS.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>We found that about 81% of the 4-instar nymphs of BPH treated with ds<i>ttk</i> died before they emerged as adults, the successfully emerged adults emitted the 431.3 Hz CVS to which female adults did not respond and lost the ability of courtship. This was first finding about the functions of <i>ttk</i> in rice planthopper and illustrated the potential of <i>ttk</i> as target for RNAi to control rice planthopper. © 2024 Society of Chemical Industry.</p>\u0000 </section>\u0000 </div>","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"80 12","pages":"6465-6472"},"PeriodicalIF":3.8,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142015814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
UV-exposure decreases antimicrobial activities of a grapevine cane extract against Plasmopara viticola and Botrytis cinerea as a consequence of stilbene modifications—a kinetic study 紫外线照射会降低葡萄藤提取物对葡萄孢菌和灰葡萄孢菌的抗菌活性--一项动力学研究。
IF 3.8 1区 农林科学
Pest Management Science Pub Date : 2024-08-22 DOI: 10.1002/ps.8367
Anthony Pébarthé-Courrouilh, Ayoub Jaa, Josep Valls-Fonayet, Grégory Da Costa, Antonio Palos-Pinto, Tristan Richard, Stéphanie Cluzet
{"title":"UV-exposure decreases antimicrobial activities of a grapevine cane extract against Plasmopara viticola and Botrytis cinerea as a consequence of stilbene modifications—a kinetic study","authors":"Anthony Pébarthé-Courrouilh,&nbsp;Ayoub Jaa,&nbsp;Josep Valls-Fonayet,&nbsp;Grégory Da Costa,&nbsp;Antonio Palos-Pinto,&nbsp;Tristan Richard,&nbsp;Stéphanie Cluzet","doi":"10.1002/ps.8367","DOIUrl":"10.1002/ps.8367","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Stilbenoid extracts, such as those originating from grapevine by-products (e.g. canes), are of interest for use as biopesticides in vineyard owing to their antimicrobial activities. However, stilbenoids are unstable in the environment, especially under light. This study aimed to chemically characterize the effect of UV light on stilbenoids present in a grapevine cane extract (CE), and to evaluate the antimicrobial activities against two major grapevine pathogens (<i>Plasmopara viticola</i> and <i>Botrytis cinerea</i>) of grapevine extracts exposed to UV.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>Treatment with UV (365 nm) on a grapevine CE led to degradation of stilbenoids (up to 71% after 1 h). The stilbenoid stability depended on their chemical structure: only those possessing CC, as <i>trans</i>-resveratrol and <i>trans</i>-ε-viniferin, were affected with first their isomerization and secondly their oxidation/cyclization. As a consequence, UV-exposed extracts (UV-CEs) showed reduced antimicrobial activities against the two pathogens (mycelium and spores). For instance, regarding <i>P. viticola</i>, an UV-CE exposed during 4 h showed an almost total loss of its activity on oomycete development and a 2.4-fold inhibition of zoospore mobility in comparison to CE. For <i>B. cinerea</i>, the inhibition capacity of the same UV-CE was reduced by only 1.1-fold on mycelial development and by 3.2-fold on conidial germination compared to CE.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>UV light triggered modifications on the structure of bioactive stilbenoids, resulting in losses of their antimicrobial activities. Photoprotection of stilbenoids has to be considered in the perspective of using them in vineyards as biopesticides. © 2024 The Author(s). <i>Pest Management Science</i> published by John Wiley &amp; Sons Ltd on behalf of Society of Chemical Industry.</p>\u0000 </section>\u0000 </div>","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"80 12","pages":"6389-6399"},"PeriodicalIF":3.8,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ps.8367","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142015816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Insecticidal activities of three recombinant venom proteins of the predatory stink bug, Arma custos 捕食蝽三种重组毒液蛋白的杀虫活性。
IF 3.8 1区 农林科学
Pest Management Science Pub Date : 2024-08-21 DOI: 10.1002/ps.8382
Xinyi Wang, Wenhong Li, Xiang Yang, Mingwei Yang, Yucheng Gu, Zhao Du, Jingyi Yang, Mingxia Wen, Yoonseong Park, Chunyang Huang, Yueping He
{"title":"Insecticidal activities of three recombinant venom proteins of the predatory stink bug, Arma custos","authors":"Xinyi Wang,&nbsp;Wenhong Li,&nbsp;Xiang Yang,&nbsp;Mingwei Yang,&nbsp;Yucheng Gu,&nbsp;Zhao Du,&nbsp;Jingyi Yang,&nbsp;Mingxia Wen,&nbsp;Yoonseong Park,&nbsp;Chunyang Huang,&nbsp;Yueping He","doi":"10.1002/ps.8382","DOIUrl":"10.1002/ps.8382","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Widespread resistance of insect pests to insecticides and transgenic crops in the field is a significant challenge for sustainable agriculture, and calls for the development of novel alternative strategies to control insect pests. One potential resource for the discovery of novel insecticidal molecules is natural toxins, particularly those derived from the venoms of insect predators.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>In this study, we identified three insecticidal proteinaceous toxins from the venom glands (VGs) of the predatory stink bug, <i>Arma custos</i> (Hemiptera: Asopinae). Transcriptomic analysis of <i>A. custos</i> VGs revealed 151 potentially secreted VG-rich venom proteins. Three VG-rich venom proteins (designated AcVP1 ~ 3) were produced by overexpression in <i>Escherichia coli</i>. Injection of the recombinant proteins into tobacco cutworm (<i>Spodoptera litura</i>) larvae showed that all of the three recombinant proteins caused paralysis, liquefaction and death. Injection of recombinant proteins into rice brown planthopper (<i>Nilaparvata lugens</i>) nymphs showed higher insecticidal activities, among which a trypsin (AcVP2) caused 100% mortality postinjection at 1.27 pmol mg<sup>−1</sup> body weight.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>A natural toolkit for the discovery of insecticidal toxins from predatory insects has been revealed by the present study. © 2024 Society of Chemical Industry.</p>\u0000 </section>\u0000 </div>","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"80 12","pages":"6473-6482"},"PeriodicalIF":3.8,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142015815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dual actions of chloroinconazide on pepper blight in Capsicum annuum: disruption of Phytophthora capsici mycelium and activation of CaCNGC9-mediated SA signaling 氯菌灵对辣椒疫病的双重作用:破坏疫霉菌丝和激活 CaCNGC9 介导的 SA 信号转导
IF 3.8 1区 农林科学
Pest Management Science Pub Date : 2024-08-21 DOI: 10.1002/ps.8383
Xin Zhu, Aihong Zou, Rui Liao, Jianjian Zhang, Changyun Liu, Chuanxiang Wang, Chunyan Hao, Daoquan Cheng, Lunfei Chen, Xianchao Sun
{"title":"Dual actions of chloroinconazide on pepper blight in Capsicum annuum: disruption of Phytophthora capsici mycelium and activation of CaCNGC9-mediated SA signaling","authors":"Xin Zhu,&nbsp;Aihong Zou,&nbsp;Rui Liao,&nbsp;Jianjian Zhang,&nbsp;Changyun Liu,&nbsp;Chuanxiang Wang,&nbsp;Chunyan Hao,&nbsp;Daoquan Cheng,&nbsp;Lunfei Chen,&nbsp;Xianchao Sun","doi":"10.1002/ps.8383","DOIUrl":"10.1002/ps.8383","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Pepper blight, caused by <i>Phytophthora capsici</i>, is a devastating disease that seriously threatens pepper production worldwide. With the emergence of resistance in <i>P. capsici</i> against conventional fungicides, there is an urgent need to explore novel alternatives for pepper blight management. This study aims to assess the inhibitory effect of chloroinconazide (CHI), a compound synthesized from tryptophan, against pepper blight, and to explore its potential mechanisms of action.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>The results demonstrated that CHI effectively targeted <i>P. capsici</i>, disrupting its growth and mycelial structure, which resulted in the release of dissolved intracellular substances. Additionally, CHI significantly inhibited the sporangium formation, zoospores release, and zoospores germination, thereby reducing the re-infection of <i>P. capsici</i>. In contrast, the commercial pesticide methylaxyl only inhibited mycelial growth and had limited effect on re-infection, while azoxystrobin inhibited re-infection but had a weak inhibitory effect on mycelial growth. Furthermore, CHI activated the salicylic acid (SA) signaling pathway-mediated immune response to inhibit <i>P. capsici</i> infection in pepper, with this activation being contingent upon cyclic nucleotide-gated ion channel CaCNGC9.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>CHI exhibited potent dual inhibitory effects on <i>P. capsici</i> by disrupting mycelial structure and activating the <i>CaCNGC9</i>-mediated SA signaling pathway. These dual mechanisms of action suggested that CHI could serve as a promising alternative chemical fungicide for the effective management of pepper blight, offering a new approach to control this devastating disease. Our findings highlighted the potential of CHI as a sustainable and efficient solution to combat the increasing resistance of <i>P. capsici</i> to conventional fungicides, ensuring better crop protection and yield. © 2024 Society of Chemical Industry.</p>\u0000 </section>\u0000 </div>","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"80 12","pages":"6483-6492"},"PeriodicalIF":3.8,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142013909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction to ‘Does monitoring pests pay off? A bioeconomic assessment of Drosophila suzukii controls’ 监测害虫是否有回报?对控制铃木果蝇的生物经济评估"。
IF 3.8 1区 农林科学
Pest Management Science Pub Date : 2024-08-21 DOI: 10.1002/ps.8374
{"title":"Correction to ‘Does monitoring pests pay off? A bioeconomic assessment of Drosophila suzukii controls’","authors":"","doi":"10.1002/ps.8374","DOIUrl":"10.1002/ps.8374","url":null,"abstract":"<p>Yeh DA, Dai B, Gómez MI and Walton VM, Does monitoring pests pay off? A bioeconomic assessment of <i>Drosophila suzukii</i> controls. <i>Pest Manag Sci</i> <b>80</b>:708–723 (2024). https://doi.org/10.1002/ps.7801</p><p>(1) In column 7 of Table 5 in the ‘3 RESULTS’ section, the values of ‘S4: Fruit sampling to guide spraying and harvesting’ were incorrect. The correct values are highlighted below.\u0000 </p><p>(2) In Fig. 2 and Fig. 3 of the ‘3 RESULTS’ section, the strategy ‘S4: Fruit sampling to guide spraying and harvesting’ were incorrect. The correct figures with the changes are shown below.\u0000 </p><p>(4) In paragraph 2 of the ‘3.2 Economic outcomes of control strategies’ section, the text ‘Compared to a fixed harvest schedule of nine times per season (e.g., strategy S3), S4 has 26 harvests on average.’ was incorrect. This should have read: ‘Compared to a fixed harvest schedule of nine times per season (e.g., strategy S3), S4 has 20 harvests on average.’</p><p>(5) In paragraph 2 of the ‘3.2 Economic outcomes of control strategies’ section, the text ‘Nonetheless, S4 results in a lower rejection rate because of more frequent harvesting (decrease from 2% in S3 to 1.8% in S4).’ was incorrect. This should have read: ‘Nonetheless, S4 results in a lower rejection rate because of more frequent harvesting (decrease from 2% in S3 to 1% in S4).’</p><p>(6) In paragraph 1 of the ‘4 Discussion and Conclusion’ section. The text ‘The simulation results show that profit ranges from $75 483 to $115 776 per farm.’ was incorrect. This should have read: ‘The simulation results show that profit ranges from $75 483 to $112 302 per farm.’</p><p>(7) In column 7 of Tables A1–A6 in the ‘5 Appendix’ section, the values of ‘S4: Fruit sampling to guide spraying and harvesting’ were incorrect. The correct values are highlighted below.\u0000 </p><p>We apologize for the error.</p>","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"80 12","pages":"6634-6637"},"PeriodicalIF":3.8,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ps.8374","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142015813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Phosphorus fertiliser is associated with reduced grass grub (Costelytra giveni) fitness in Epichloë endophyte-infected meadow fescue and perennial ryegrass 磷肥与受 Epichloë 内生菌感染的草地羊茅和多年生黑麦草的禾本科蛴螬(Costelytra giveni)适应性降低有关。
IF 3.8 1区 农林科学
Pest Management Science Pub Date : 2024-08-20 DOI: 10.1002/ps.8369
Katrin G. Hewitt, Rainer W. Hofmann, Olivier J. Ball, Dongwen Luo, Sarah C. Finch, Racheal H. Bryant, Alison J. Popay
{"title":"Phosphorus fertiliser is associated with reduced grass grub (Costelytra giveni) fitness in Epichloë endophyte-infected meadow fescue and perennial ryegrass","authors":"Katrin G. Hewitt,&nbsp;Rainer W. Hofmann,&nbsp;Olivier J. Ball,&nbsp;Dongwen Luo,&nbsp;Sarah C. Finch,&nbsp;Racheal H. Bryant,&nbsp;Alison J. Popay","doi":"10.1002/ps.8369","DOIUrl":"10.1002/ps.8369","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Fertiliser applications are well-established tools in pasture-based agricultural landscapes. This study focuses on the impact of phosphorus (P) fertiliser on grass grub (<i>Costelytra giveni</i>), a major pasture pest. This research investigates the interplay between P, plant growth, and grass grub fitness in <i>Epichloë</i> endophyte-infected perennial ryegrass (<i>Epichloë</i> sp. LpTG-3 strain AR37) and meadow fescue infected with <i>E. uncinata</i> (strain MaxR; AR1017), alongside their endophyte-free counterparts. In a glasshouse trial, plants were grown in P-enriched soil with varying Olsen P levels (9, 18, 28 or 78 mg L<sup>−1</sup>), and grass grubs were introduced. Their survival and weight gain, and plant performance were measured. In a bioassay, grass grubs were placed in specimen vials with P-enriched soils (Olsen P levels 9, 18, 28 and 78 mg L<sup>−1</sup>) and provided with identical plant material to assess their diet consumption and weight gain.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>In the glasshouse trial, results highlighted a notable decrease in the survival of grass grub on plants infected with MaxR endophyte, but not with AR37, as well as increasing soil Olsen P levels in both plant species. While grass grub decreased plant performance at the low Olsen P level (9 mg L<sup>−1</sup>), this effect diminished with increasing P. Likewise, results from the bioassay showed a decrease in diet consumption with increasing soil Olsen P levels. In both trials increasing Olsen P levels correlated with diminished grass grub performance, revealing a nuanced relationship between soil fertility and pest dynamics.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>The study underscores the pivotal role of selected <i>Epichloë</i> endophyte–grass associations in mitigating grass grub damage across varying phosphorus levels. This study highlights the potential to integrate P applications for sustainable pest control against grass grub. Further field trials are required to validate these findings. © 2024 The Author(s). <i>Pest Management Science</i> published by John Wiley &amp; Sons Ltd on behalf of Society of Chemical Industry.</p>\u0000 </section>\u0000 </div>","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"80 12","pages":"6409-6423"},"PeriodicalIF":3.8,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ps.8369","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142003207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Root-secreted (-)-loliolide mediates chemical defense in rice and wheat against pests. 根分泌的 (-)-loliolide 在水稻和小麦中介导抵御害虫的化学防御。
IF 3.8 1区 农林科学
Pest Management Science Pub Date : 2024-08-20 DOI: 10.1002/ps.8378
Zheng Li, Fang Jia, Lei-Lei Li, Chui-Hua Kong
{"title":"Root-secreted (-)-loliolide mediates chemical defense in rice and wheat against pests.","authors":"Zheng Li, Fang Jia, Lei-Lei Li, Chui-Hua Kong","doi":"10.1002/ps.8378","DOIUrl":"https://doi.org/10.1002/ps.8378","url":null,"abstract":"<p><strong>Background: </strong>Plant chemical defense can be elicited by signaling chemicals. As yet, the elicitation is mainly known from volatile aboveground signals. Root-secreted belowground signals and their underlying mechanisms are largely unknown. This study examined a root-secreted signaling (-)-loliolide to trigger chemical defense in rice and wheat against pests by means of cocultivation and incubation experiments.</p><p><strong>Results: </strong>Wild-type Arabidopsis (WT) and its root exudates with (-)-loliolide induced the production of defensive metabolites of rice and wheat and reduced the performance of weeds, pathogens and herbivores, while a carotenoid-deficient mutant (szl1-1) and its root exudates without (-)-loliolide had no similar effects. However, the induction and reduction occurred in the szl1-1 root exudates by (-)-loliolide supplementation with the level equal to that of WT. RNA-sequencing analysis revealed a significant change in the transcript level of defense-related genes in rice exposure to (-)-loliolide. Furthermore, (-)-loliolide enhanced rice resistance against Rhizoctonia solani through changing reactive oxygen species (ROS) system, and mediating jasmonic acid, salicylic acid and abscisic acid biosynthesis.</p><p><strong>Conclusion: </strong>Root-secreted signaling (-)-loliolide can trigger chemical defense in rice and wheat against their pests. Such perception-dependent chemical defenses provide an intriguing possibility for ecological pest management to increase crop productivity and sustainability. © 2024 Society of Chemical Industry.</p>","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":" ","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142003228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Scaffold hopping approaches for the exploration of herbicidally active compounds inhibiting Acyl-ACP Thioesterase. 采用支架跳转方法探索抑制酰基-ACP 硫代酯酶的草本活性化合物。
IF 3.8 1区 农林科学
Pest Management Science Pub Date : 2024-08-19 DOI: 10.1002/ps.8370
Tyler Fahrenhorst-Jones, Stephanie Lee, Birgit Bollenbach-Wahl, Guido Bojack, Ralf Braun, Jens Frackenpohl, Ines Heinemann, Bernd Laber, Gudrun Lange, Olaf Peters, Anna M Reingruber, Dirk Schmutzler, David M Barber
{"title":"Scaffold hopping approaches for the exploration of herbicidally active compounds inhibiting Acyl-ACP Thioesterase.","authors":"Tyler Fahrenhorst-Jones, Stephanie Lee, Birgit Bollenbach-Wahl, Guido Bojack, Ralf Braun, Jens Frackenpohl, Ines Heinemann, Bernd Laber, Gudrun Lange, Olaf Peters, Anna M Reingruber, Dirk Schmutzler, David M Barber","doi":"10.1002/ps.8370","DOIUrl":"https://doi.org/10.1002/ps.8370","url":null,"abstract":"<p><strong>Background: </strong>The sustainable control of weed populations is a significant challenge facing farmers around the world. Although various methods for the control of weeds exist, the use of small molecule herbicides remains the most effective and versatile approach. Striving to find novel herbicides that combat resistant weeds via the targeting of plant specific modes of action (MoAs), we further investigated the bicyclic class of acyl-acyl carrier protein (ACP) thioesterase (FAT) inhibitors in an effort to find safe and efficacious lead candidates.</p><p><strong>Results: </strong>Utilizing scaffold hopping and bioisosteric replacements strategies, we explored new bicyclic inhibitors of FAT. Amongst the investigated compounds we identified new structural motifs that showed promising target affinity coupled with good in vivo efficacy against commercially important weed species. We further studied the structure-activity relationship (SAR) of the novel dihydropyranopyridine structural class which showed promise as a new type of FAT inhibiting herbicides.</p><p><strong>Conclusion: </strong>The current work presents how scaffold hopping approaches can be implemented to successfully find novel and efficacious herbicidal structures that can be further optimized for potential use in sustainable agricultural practices. The identified dihydropyranopyridine bicyclic class of herbicides were demonstrated to have in vitro inhibitory activity against the plant specific MoA FAT as well as showing promising control of a variety of weed species, particularly grass weeds in greenhouse trials on levels competitive with commercial standards. © 2024 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.</p>","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":" ","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141999010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Oral secretions from striped stem borer (Chilo suppressalis) induce defenses in rice 条纹二化螟(Chilo suppressalis)的口腔分泌物诱导水稻的防御能力。
IF 3.8 1区 农林科学
Pest Management Science Pub Date : 2024-08-17 DOI: 10.1002/ps.8376
Shan Yu, Lei Gong, Yang-Chun Han, Lei Yang, Jing Li, Ary A. Hoffmann, Guang-Hua Luo, Guo-Rui Yuan, Ji-Chao Fang, Rui Ji
{"title":"Oral secretions from striped stem borer (Chilo suppressalis) induce defenses in rice","authors":"Shan Yu,&nbsp;Lei Gong,&nbsp;Yang-Chun Han,&nbsp;Lei Yang,&nbsp;Jing Li,&nbsp;Ary A. Hoffmann,&nbsp;Guang-Hua Luo,&nbsp;Guo-Rui Yuan,&nbsp;Ji-Chao Fang,&nbsp;Rui Ji","doi":"10.1002/ps.8376","DOIUrl":"10.1002/ps.8376","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>The striped stem borer (SSB, <i>Chilo suppressalis</i>) is one of the most destructive insect pests on rice. As a chewing insect, SSB larval feeding causes a dramatic increase in rice defense responses. However, the effects of oral secretions (OSs) during SSB feeding on rice defense remain largely unexplored.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>In this study, based on transcriptome analysis results, treatment with SSB OSs regulated the expression of genes involved in the plant defense-related pathways of calcium, mitogen-activated protein kinases, reactive oxygen species, jasmonic acid (JA), herbivore-induced plant volatiles (HIPVs), and protease inhibitors. Unsurprisingly, treatment with SSB OSs elicited the accumulation of JA and JA-isoleucine in rice. The defense mechanisms activated by the cascade not only induced the expression of trypsin inhibitors, inhibiting the normal growth of SSB larvae but also induced HIPVs emission, rendering rice attractive to a common larval parasitoid. High-throughput proteome sequencing of SSB OSs led to 534 proteins being identified and 343 proteins with two or more unique peptides being detected.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>The study demonstrates that SSB OSs trigger both direct and indirect defense mechanisms in rice, akin to the effects of SSB feeding. It identifies specific proteins in SSB OSs that may influence the interactions between SSB and rice during feeding, providing valuable insights for effectors research. © 2024 Society of Chemical Industry.</p>\u0000 </section>\u0000 </div>","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"80 12","pages":"6437-6449"},"PeriodicalIF":3.8,"publicationDate":"2024-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141994890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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