Physiologia plantarum最新文献

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SYNTAXIN OF PLANTS 81 regulates fatty acid desaturation by mediating Acyl Carrier Protein Desaturase 5 during seed development in Arabidopsis thaliana. SYNTAXIN OF PLANTS 81通过介导酰基载体蛋白去饱和酶5调控拟南芥种子发育过程中的脂肪酸去饱和。
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70173
Xiaonan Zhao, Hailong Zhang, Ronghui Pan, Guochen Qin, Jie Dong, Yang Zhu, Mingjing Wang, Hongyu Zhou, Mengjie Gong, Pengcheng Wang, Lixin Li, Lixi Jiang
{"title":"SYNTAXIN OF PLANTS 81 regulates fatty acid desaturation by mediating Acyl Carrier Protein Desaturase 5 during seed development in Arabidopsis thaliana.","authors":"Xiaonan Zhao, Hailong Zhang, Ronghui Pan, Guochen Qin, Jie Dong, Yang Zhu, Mingjing Wang, Hongyu Zhou, Mengjie Gong, Pengcheng Wang, Lixin Li, Lixi Jiang","doi":"10.1111/ppl.70173","DOIUrl":"10.1111/ppl.70173","url":null,"abstract":"<p><p>Lipids are essential for building cells and are used as important seed reserves. Fatty acids (FAs) are the key structural units of lipids, forming their hydrophobic tails in triglycerides and phospholipids. FA synthesis starts in plastids and is completed in the endoplasmic reticulum (ER). SYNTAXIN OF PLANTS 81 (SYP81), a Qa-soluble N-ETHYLMALEIMIDE SENSITIVE FACTOR attachment protein receptor (Qa-SNARE), regulates vesicle trafficking between the ER and Golgi apparatus, yet its role in FA synthesis is unknown. Here, we examined the expression of SYP81 during Arabidopsis thaliana seed development and found that the syp81 mutation reduced Acyl-Acyl Desaturase 5 (AAD5) accumulation in plastids of Arabidopsis embryonic cells and thus significantly decreased unsaturated FA production. Pull-down experiments identified possible interactors with SYP81, including various Stearoyl-Acyl carrier protein Desaturases (SADs), notably AAD5, and Translocons at Outer envelope membranes of Chloroplast (TOCs), especially TOC33. To validate these interactions, CoIP, yeast-two-hybridization assays, and bimolecular-fluorescence-complementation experiments were performed. The results of these experiments supported the interaction between SYP81 and AAD5, as well as SYP81 and TOC33. Based on these findings, a model was proposed, suggesting that pre-AAD5, recruited by SYP81, translocates from the ER to the plastids through the TIC-TOC complex mediations. Within the plastids, pre-AAD5 then matures into its catalytically active form, enabling subsequent FA desaturation.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 2","pages":"e70173"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143764330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Seaweed extract combined with boron promotes the growth of sugar beet by improving the photosynthetic performance under boron deficiency. 海藻浸提液与硼配合施用可改善缺硼条件下甜菜的光合性能,促进甜菜生长。
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70195
Songlin Yang, Wenyu Wu, Shangxuan Liu, Xiaoyu Zhao, Muhammad Riaz, Muhammad Ishfaq, Yan Wang, Abudukadier Kuerban, Wang Xing, Baiquan Song
{"title":"Seaweed extract combined with boron promotes the growth of sugar beet by improving the photosynthetic performance under boron deficiency.","authors":"Songlin Yang, Wenyu Wu, Shangxuan Liu, Xiaoyu Zhao, Muhammad Riaz, Muhammad Ishfaq, Yan Wang, Abudukadier Kuerban, Wang Xing, Baiquan Song","doi":"10.1111/ppl.70195","DOIUrl":"10.1111/ppl.70195","url":null,"abstract":"<p><p>Biostimulants can improve mineral nutrient effectiveness, but the physiological mechanisms by which seaweed extract, a natural biostimulant, and boron (B) fertilizer promote the growth of sugar beet under B deficiency are not clear. In this study, B and seaweed extract were applied under B-deficiency (0.32 mg B kg<sup>-1</sup> soil) and potentially B-deficient conditions (0.69 mg B kg<sup>-1</sup> soil), and the growth and photochemical properties of sugar beet seedlings were investigated. The results indicated that B application alone or with seaweed extract promoted sugar beet growth, with the combined application having a significantly enhanced effect. When comparing the two soils with different B content (deficient and moderately deficient), the spray of seaweed extract under the B-deficient condition was more effective. After the addition of seaweed extract, the B content of the shoots and roots increased by 28.56% and 12.64%, respectively, under B deficiency(0.32 mg B kg<sup>-1</sup> soil). Furthermore, the content of chlorophyll a (Chla), chlorophyll b (Chlb), and the net photosynthesis rate (P<sub>n</sub>) increased by 8.96%, 30.57%, and 13.74%, respectively. The addition of seaweed extract significantly improved the light saturation point (P<sub>m</sub>), with a 35.00% increase compared to the control. Additionally, it increased the quantum yield (ET<sub>O</sub>/CS<sub>m</sub>) of leaf electron transfer per unit area and reduced the absorption of light energy loss of the PS reaction center (DI<sub>O</sub>/RC) and per unit area (DI<sub>O</sub>/CS<sub>m</sub>), thereby improving photosynthetic performance and significantly increasing aboveground dry matter accumulation by 19.05%. In conclusion, seaweed extract can enhance B absorption, light energy capture and utilization ability. It provides the theoretical evidence for the regulation of B nutrition in sugar beet and the rational application of biostimulants.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 2","pages":"e70195"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143772754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High hydraulic safety, water use efficiency and a conservative resource-use strategy in woody species of high-altitude environments: A global study. 高海拔环境木本植物的水力安全、水资源利用效率和资源利用策略
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70064
Muhammad Waseem, Yakov Kuzyakov, Marc Carriquí, Christine Scoffoni, Kaiping Zhang, Md Mahadi Hasan, Guang-Qian Yao, Lei He, Jing Shao, Fengyuan Mei, Ting-Shuai Shi, Xiang-Wen Fang
{"title":"High hydraulic safety, water use efficiency and a conservative resource-use strategy in woody species of high-altitude environments: A global study.","authors":"Muhammad Waseem, Yakov Kuzyakov, Marc Carriquí, Christine Scoffoni, Kaiping Zhang, Md Mahadi Hasan, Guang-Qian Yao, Lei He, Jing Shao, Fengyuan Mei, Ting-Shuai Shi, Xiang-Wen Fang","doi":"10.1111/ppl.70064","DOIUrl":"10.1111/ppl.70064","url":null,"abstract":"<p><p>Understanding the impact of altitude on leaf hydraulic, gas exchange, and economic traits is crucial for comprehending vegetation properties and ecosystem functioning. This knowledge also helps to elucidate species' functional strategies regarding their vulnerability or resilience to global change effects in alpine environments. Here, we conducted a global study of dataset encompassing leaf hydraulic, gas exchange, and economic traits for 3391 woody species. The results showed that high-altitude species possessed greater hydraulic safety (K<sub>leaf</sub> P<sub>50</sub>), higher water use efficiency (WUE<sub>i</sub>) and conservative resource use strategy such as higher leaf mass per area, longer leaf lifespan, lower area-based leaf nitrogen and phosphorus contents, and lower rates of photosynthesis and dark respiration. Conversely, species at lower altitudes exhibited lower hydraulic safety (K<sub>leaf</sub> P<sub>50</sub>), lower water use efficiency (WUE<sub>i</sub>) and an acquisitive resource use strategy. These global patterns of leaf traits in relation to altitude reveal the strategies that alpine plants employ for hydraulic safety, water use efficiency, and resource, which have important implications for predicting forest productivity and acclimation to rapid climate change.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 2","pages":"e70064"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143674414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Leaf epicuticular wax and hormone-mediated resistance to Alternaria brassicicola in broccoli. 花椰菜叶片表皮蜡质及激素介导的抗油菜互生菌性。
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70172
Sunil S Gangurde, Navjot Kaur, Baozhu Guo, Bhabesh Dutta
{"title":"Leaf epicuticular wax and hormone-mediated resistance to Alternaria brassicicola in broccoli.","authors":"Sunil S Gangurde, Navjot Kaur, Baozhu Guo, Bhabesh Dutta","doi":"10.1111/ppl.70172","DOIUrl":"10.1111/ppl.70172","url":null,"abstract":"<p><p>Alternaria leaf spot disease is a foliar disease of brassica crops, including broccoli, caused by Alternaria brassicicola. This disease is a serious problem causing unmarketable yields and millions of dollars in losses in broccoli and other crucifers across the globe. During the pathogenicity and whole plant inoculation assays, we observed significantly higher disease severity in the older leaves at the bottom, as compared to the younger leaves at the top. The symptoms seemed to appear first in the lower and older leaves and gradually progressed upwards to the younger leaves, ultimately reaching the broccoli head. Epicuticular wax analysis showed a significantly higher amount of wax deposition on the younger leaves at the top as compared to the older leaves at the bottom. Further regression analysis showed a negative correlation between wax per unit area and disease severity. Differential gene expression analysis showed upregulation of key wax biosynthesis genes, namely 3-ketoacyl-CoA synthase (Bol018447), alkane hydroxylase CYP96A15 (Bol016302) and O-acyltransferase WSD1 (Bol024738) in the younger leaves. The abscisic acid, salicylic acid and jasmonic acid were differentially accumulated in the older leaves as compared to the younger inoculated leaves in response to A. brassicicola inoculation. Transcriptome analysis uncovered large transcriptome reprogramming in the older leaves as compared to the younger leaves. Senescence-associated genes such as senescence regulator S40 (BolC7t42093H), stress up-regulated Nod 19 (BolC2t12223H), and late embryogenesis abundant protein (BolC8t47646H) were upregulated in the older leaves. These findings suggest that the older bottom leaves of broccoli are highly susceptible to A. brassicicola, potentially associated with lower wax deposition and increased modulation in senescence hormones.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 2","pages":"e70172"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11969423/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143780869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of different methods to evaluate tissue damage in response to leaf dehydration in Quercus ilex L. and Q. faginea Lam. 比较不同方法评估叶片脱水对柞树和杉树的组织损伤
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70178
Miquel Nadal, José Javier Peguero-Pina, Domingo Sancho-Knapik, Eustaquio Gil-Pelegrín
{"title":"Comparison of different methods to evaluate tissue damage in response to leaf dehydration in Quercus ilex L. and Q. faginea Lam.","authors":"Miquel Nadal, José Javier Peguero-Pina, Domingo Sancho-Knapik, Eustaquio Gil-Pelegrín","doi":"10.1111/ppl.70178","DOIUrl":"10.1111/ppl.70178","url":null,"abstract":"<p><p>Determination of the point of critical damage in plant organs is crucial to elucidate the causes of plant mortality, but the different methodologies to quantify such damage have not been previously compared under the same experimental conditions. Here, we tested different indicators to evaluate damage in leaves of Quercus faginea and Q. ilex; in the latter case, 1- and 2-year-old leaves were included. The damage indicators were relative electrolyte leakage (REL), rehydration capacity (evaluated as the percentage loss of rehydration capacity; PLRC), chlorophyll fluorescence (maximum quantum yield of PSII; F<sub>v</sub>/F<sub>m</sub>), and the viability marker triphenyltetrazolium chloride (TTC). These damage indicators were evaluated in different sets of detached leaves for each species and leaf age dehydrated on the lab bench. Electrolyte leakage and PLRC showed a gradual response to decreasing relative water content, whereas F<sub>v</sub>/F<sub>m</sub> and TTC showed a threshold-like response, especially in the case of Q. faginea. Electrolyte leakage and TTC did not show differences between species and/or leaf ages. Measurement of F<sub>v</sub>/F<sub>m</sub> in dehydrating leaves proved to be the most straightforward, rapid and precise method for damage quantification, allowing for the differentiation in dehydration tolerance between Q. ilex and Q. faginea.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 2","pages":"e70178"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11932967/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143701036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Roles of CPKs in ethylene-induced Arabidopsis stomatal closure and their crosstalk with H2O2 and NO signalling. CPKs在乙烯诱导拟南芥气孔关闭中的作用及其与H2O2和NO信号的串扰
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70196
Xue Li, Lixiao Wang, Meixiang Zhang, Junmin He, Yuyan An
{"title":"Roles of CPKs in ethylene-induced Arabidopsis stomatal closure and their crosstalk with H<sub>2</sub>O<sub>2</sub> and NO signalling.","authors":"Xue Li, Lixiao Wang, Meixiang Zhang, Junmin He, Yuyan An","doi":"10.1111/ppl.70196","DOIUrl":"10.1111/ppl.70196","url":null,"abstract":"<p><p>Calcium-dependent protein kinases (CPKs) play crucial roles in plant guard cell signal transduction. Ethylene is known to induce stomatal closure, with the hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>)-nitric oxide (NO) signalling module being pivotal to this process. However, the specific roles of CPKs in this process and their interactions with H<sub>2</sub>O<sub>2</sub> and NO remain unclear. In this study, we screened Arabidopsis mutants of nine CPKs and found that in the loss-of-function mutants for CPK3, CPK4, CPK6, CPK11, CPK21, and CPK33, exogenous ethylene failed to induce stomatal closure, indicating that these CPKs act as positive regulators in ethylene-induced stomatal closure. Mutants' stomatal responses to H<sub>2</sub>O<sub>2</sub> and NO treatment and changes of endogenous H<sub>2</sub>O<sub>2</sub> and NO levels in guard cells upon ethylene treatment indicated that CPK3, CPK4, CPK11, and CPK33 function upstream of the H<sub>2</sub>O<sub>2</sub>-NO module, while CPK6 and CPK21 act downstream. Furthermore, NADPH oxidases play critical roles in ethylene-induced H<sub>2</sub>O<sub>2</sub> production. We identified the interactions of CPK3, CPK4, and CPK11 with AtRBOHF, and CPK4 and CPK11 with AtRBOHD using four different assays, and exogenous ethylene enhanced these interactions. These results suggest that CPK3, CPK4, and CPK11 may mediate ethylene-induced H<sub>2</sub>O<sub>2</sub> formation in guard cells through their interactions with AtRBOHD/F. Additionally, exogenous ethylene significantly upregulates the expression of CPK3, CPK4, CPK6, CPK11 and CPK21, providing a potential mechanism by which ethylene modulates CPKs. Our findings not only establish the role of CPKs in ethylene guard cell signalling but also offer insights into the mechanism by which ethylene activates NADPH oxidases to initiate H<sub>2</sub>O<sub>2</sub> production.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 2","pages":"e70196"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143764328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Green light induces Solanum lycopersicum JA synthesis and inhibits Botrytis cinerea infection cushion formation to resist grey mould disease. 绿光诱导茄JA合成,抑制灰霉菌感染垫形成,抵抗灰霉菌病。
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70156
Yunfei Cai, Jiali Ying, Youju Ye, Shuangshuang Wen, Renjuan Qian
{"title":"Green light induces Solanum lycopersicum JA synthesis and inhibits Botrytis cinerea infection cushion formation to resist grey mould disease.","authors":"Yunfei Cai, Jiali Ying, Youju Ye, Shuangshuang Wen, Renjuan Qian","doi":"10.1111/ppl.70156","DOIUrl":"10.1111/ppl.70156","url":null,"abstract":"<p><p>Light signals are prevalent and influence the survival strategies of both plants and the pathogenic fungi that infect them. In this study, we found that green light inhibits the infectivity of Botrytis cinerea on Solanum lycopersicum. Through transcriptome analysis and validation of S. lycopersicum leaves infected with B. cinerea, we discovered that green light enhances the synthesis of jasmonic acid and its related metabolites by upregulating the expression of OPR3 and JAR1 in S. lycopersicum. Additionally, green light boosts the activity of antioxidant enzymes like peroxidase, catalase, and ascorbic acid peroxidase in S. lycopersicum to combat tomato grey mould. Conversely, green light inhibits the expression of plant-induced colonization onset genes, mitogen-activated protein kinase genes, and the formation of infection cushions in B. cinerea. Our findings provide insights into the role of environmental green light signals in the interaction system between plants and phytopathogenic fungi.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 2","pages":"e70156"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143658213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Positional mapping - constitutive purple trait locus (pl) in guava (Psidium guajava L.) in F2 and BC1F1 populations of Purple Local × Allahabad Safeda. 番石榴(Psidium guajava L.) F2和BC1F1群体紫色性状组成位点(pl)的定位定位
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70212
Harsh Vardhan Shukla, Abhishek Kumar, Sukhjinder Singh Maan, Sujata Thakur, Naresh Kumar Arora, Gursimran Kaur, Shivendu Partap Singh Solanki, Rajbir Singh Boora, Daljinder Singh, Jaswinder Singh Brar, Kirandeep Kaur Kang, Parveen Chhuneja, Manav Indra Singh Gill, Navtej Singh Bains, Amandeep Mittal
{"title":"Positional mapping - constitutive purple trait locus (pl) in guava (Psidium guajava L.) in F<sub>2</sub> and BC<sub>1</sub>F<sub>1</sub> populations of Purple Local × Allahabad Safeda.","authors":"Harsh Vardhan Shukla, Abhishek Kumar, Sukhjinder Singh Maan, Sujata Thakur, Naresh Kumar Arora, Gursimran Kaur, Shivendu Partap Singh Solanki, Rajbir Singh Boora, Daljinder Singh, Jaswinder Singh Brar, Kirandeep Kaur Kang, Parveen Chhuneja, Manav Indra Singh Gill, Navtej Singh Bains, Amandeep Mittal","doi":"10.1111/ppl.70212","DOIUrl":"https://doi.org/10.1111/ppl.70212","url":null,"abstract":"<p><p>Guava (Psidium guajava L.) is a popular fruit crop in Southeast Asia. Landrace Purple Local (PL), also known as Malaysian guava, is rich in anthocyanin content in all the plant parts but has poor yield. Genetic inheritance and physical location of the allele(s) controlling the constitutive purple trait in guava have not yet been reported. The F<sub>1</sub> plants generated by cross hybridizing PL × green cv. Allahabad Safeda (AS) and analysed for 7 years did not exhibit purple trait. Evaluation of F<sub>1</sub>, F<sub>2</sub> and BC<sub>1</sub>F<sub>1</sub> populations derived from the cross between PL x AS revealed that purple color is a recessive trait in guava. Equally spaced (~10 Mb) co-dominant polymorphic markers developed by in silico analysis of AS and PL genome (mapped to AS genome assembly) into PCR-based assay mapped the purple color locus (pl) on pseudochromosome 11 (PC 11) of guava genome. Further mapping on PC 11 identified 2 InDel markers at 2.49 Mb (Pg11_INDL_2.49 M) and 4.99 Mb (Pg11_INDL_4.99 M) closely associated with pl. Also, QTLseqr for purple and non-purple bulks in F<sub>2</sub> provided two co-localized significant peak ΔSNP-indices at positions 2489072 and 4978573 on PC 11. The mapped genomic interval harbours 85 coding genes, including the potential candidates MYB-like ETC1, anthocyanidin reductase, MYB41-like transcription factors and F-box protein SKIP27-like. Markers flanking pl would potentiate the marker-assisted introgression of anthocyanin trait in popular cultivars of guava.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 2","pages":"e70212"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144024015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transcription factor AabHLH5 participates in JA signaling and negatively regulates artemisinin biosynthesis in Artemisia annua. 转录因子AabHLH5参与JA信号传导,负向调控黄花蒿中青蒿素的生物合成。
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70207
Zihan Xu, Chuhan Li, Xingxing Wang, Zongyou Lv, Wankui Li, Wansheng Chen
{"title":"Transcription factor AabHLH5 participates in JA signaling and negatively regulates artemisinin biosynthesis in Artemisia annua.","authors":"Zihan Xu, Chuhan Li, Xingxing Wang, Zongyou Lv, Wankui Li, Wansheng Chen","doi":"10.1111/ppl.70207","DOIUrl":"https://doi.org/10.1111/ppl.70207","url":null,"abstract":"<p><p>The plant hormone jasmonic acid (JA) can increase artemisinin content in Artemisia annua L., but the mechanism regulating artemisinin biosynthesis needs further study. Basic helix-loop-helix (bHLH) transcription factors play important roles in plant growth and development, defense responses, secondary metabolism, etc. However, the role of bHLH transcription factors in response to JA signaling in artemisinin biosynthesis has not been well reported. Therefore, it is of great significance to investigate whether potential bHLH transcription factors in A. annua can regulate artemisinin biosynthesis through the JA signaling pathway. In this study, transcriptome data of A. annua treated with MeJA (Methyl Jasmonate) were used to identify candidate bHLH transcription factors that respond to JA. Furthermore, AabHLH5 and two potential JASMONATE-ZIM DOMAIN (JAZ) proteins interacting with AabHLH5 were identified through plant transformation, yeast two-hybrid and bimolecular fluorescence complementarity assays. Furthermore, the molecular mechanism by which bHLH5 participates in the JA signaling pathway and negatively regulates artemisinin biosynthesis was verified.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 2","pages":"e70207"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144021022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The subcellular localisation of early photosystem II assembly in Synechocystis sp. PCC 6803. 聚胞藻(Synechocystis sp. pcc6803)早期光系统II组装的亚细胞定位。
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70234
Matthias Ostermeier, Isabelle Buschmann, Steffen Heinz, Jörg Nickelsen
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