Fan Tian, Jun-Cai Wang, Xin-Xiang Bai, Yan-Bing Yang, Lang Huang, Xiao-Feng Liao
{"title":"Symbiotic seed germination and seedling growth of mycorrhizal fungi in Paphiopedilum hirsutissimun (Lindl.Ex Hook.) Stein from China","authors":"Fan Tian, Jun-Cai Wang, Xin-Xiang Bai, Yan-Bing Yang, Lang Huang, Xiao-Feng Liao","doi":"10.1080/15592324.2023.2293405","DOIUrl":"https://doi.org/10.1080/15592324.2023.2293405","url":null,"abstract":"Similar to other orchid species, Paphiopedilum hirsutissimum (Lindl.ex Hook.) Stein, relies on nutrients provided by mycorrhizal fungus for seed germination and seedling development in the wild owi...","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"110 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138743130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dakalo Muthego, Sellwane J. Moloi, Adrian P. Brown, Tatenda Goche, Stephen Chivasa, Rudo Ngara
{"title":"Exogenous abscisic acid treatment regulates protein secretion in sorghum cell suspension cultures","authors":"Dakalo Muthego, Sellwane J. Moloi, Adrian P. Brown, Tatenda Goche, Stephen Chivasa, Rudo Ngara","doi":"10.1080/15592324.2023.2291618","DOIUrl":"https://doi.org/10.1080/15592324.2023.2291618","url":null,"abstract":"Drought stress adversely affects plant growth, often leading to total crop failure. Upon sensing soil water deficits, plants switch on biosynthesis of abscisic acid (ABA), a stress hormone for drou...","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"10 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138743426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Gain-of-function of the cytokinin response activator ARR1 increases heat shock tolerance in <i>Arabidopsis thaliana</i>.","authors":"Sumudu Karunadasa, Jasmina Kurepa, Jan A Smalle","doi":"10.1080/15592324.2022.2073108","DOIUrl":"https://doi.org/10.1080/15592324.2022.2073108","url":null,"abstract":"<p><p>In addition to its well-established role in plant development, the hormone cytokinin regulates plant responses to biotic and abiotic stresses. It was previously shown that cytokinin signaling acts negatively upon drought and osmotic stress tolerance and that gain-of-function of the cytokinin response regulator ARR1 causes osmotic stress hypersensitivity. Here we show that increased ARR1 action increases tolerance to heat shock and that this is correlated with increased accumulation of the heat shock proteins Hsp17.6 and Hsp70. These results show that the heat shock tolerance of plants can be elevated by increasing the expression of a cytokinin response activator.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"17 1","pages":"2073108"},"PeriodicalIF":2.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9103500/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10252333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Guohua Cai, Yujie Xu, Shuxia Zhang, Tingting Chen, Gan Liu, Zhengyue Li, Youshuang Zhu, Guodong Wang
{"title":"A tomato chloroplast-targeted DnaJ protein, SlDnaJ20 maintains the stability of photosystem I/II under chilling stress.","authors":"Guohua Cai, Yujie Xu, Shuxia Zhang, Tingting Chen, Gan Liu, Zhengyue Li, Youshuang Zhu, Guodong Wang","doi":"10.1080/15592324.2022.2139116","DOIUrl":"https://doi.org/10.1080/15592324.2022.2139116","url":null,"abstract":"<p><p>DnaJ proteins are key molecular chaperones that act as a part of the stress response to stabilize plant proteins, thereby maintaining protein homeostasis under stressful conditions. Herein we used transgenic plants to explore the role of the tomato (<i>Solanum lycopersicum</i>) SlDnaJ20 chloroplast DnaJ protein in to the resistance of these proteins to cold. When chilled, transgenic plants exhibited superior cold resistance, with reduced growth inhibition and cellular damage and increased fresh mass and chlorophyll content relative to control. These transgenic plants further exhibited increased Fv/Fm, P700 oxidation, φ<sub>Ro</sub>, and δ<sub>Ro</sub> relative to control plants under chilling conditions. Under these same cold conditions, these transgenic plants also exhibited higher levels of core proteins in the photosystem I (PSI) and II (PSII) complexes (PsaA and PsaB; D1 and D2) relative to control wild-type plants. Together these results suggested that the overexpression of <i>SlDnaJ20</i> is sufficient to maintain PSI and PSII complex stability and to alleviate associated photoinhibition of these complexes, thereby increasing transgenic plant resistance to cold stress.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"17 1","pages":"2139116"},"PeriodicalIF":2.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9683050/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10421925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vinay Kumar Bari, Dharmendra Singh, Jackline Abu Nassar, Radi Aly
{"title":"Silencing of a mannitol transport gene in <i>Phelipanche aegyptiaca</i> by the tobacco rattle virus system reduces the parasite germination on the host root.","authors":"Vinay Kumar Bari, Dharmendra Singh, Jackline Abu Nassar, Radi Aly","doi":"10.1080/15592324.2022.2139115","DOIUrl":"https://doi.org/10.1080/15592324.2022.2139115","url":null,"abstract":"<p><p>Root parasitic weed <i>Phelipanche aegyptiaca</i> is an obligate plant parasite that causes severe damage to host crops. Agriculture crops mainly belong to the Brassicaceae, Leguminosae, Cruciferae, and Solanaceae plant families affected by this parasitic weed, leading to the devastating loss of crop yield and economic growth. This root-specific parasitic plant is not able to complete its life cycle without a suitable host and is dependent on the host plant for nutrient uptake and germination. Therefore, selected parasitic genes of <i>P. aegyptiaca</i> which were known to be upregulated upon interaction with the host were chosen. These genes are essential for parasitism, and reduced activity of these genes could affect host-parasitic interaction and provide resistance to the host against these parasitic weeds. To check and examine the role of these parasitic genes which can affect the development of host resistance, we silenced selected genes in the <i>P. aegyptiaca</i> using the tobacco rattle virus (TRV) based virus-induced gene silencing (VIGS) method. Our results demonstrated that the total number of <i>P. aegyptiaca</i> parasite tubercles attached to the root of the host plant <i>Nicotiana benthamiana</i> was substantially decreased in all the silenced plants. However, silencing of the <i>P. aegyptiaca MNT1</i> gene which encodes the mannitol transporter showed a significantly reduced number of germinated shoots and tubercles. Thus, our study indicates that the mannitol transport gene of <i>P. aegyptiaca</i> plays a crucial role in parasitic germination, and silencing of the <i>PaMNT1</i> gene abolishes the germination of parasites on the host roots.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"17 1","pages":"2139115"},"PeriodicalIF":2.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9704376/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10481247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maozhen Luo, Zhiwei Han, Guoye Huang, Rongfang Li, Yi Liu, Junjie Lu, Lin Liu, Rui Miao
{"title":"Structural comparison of unconventional G protein YchF with heterotrimeric G protein and small G protein.","authors":"Maozhen Luo, Zhiwei Han, Guoye Huang, Rongfang Li, Yi Liu, Junjie Lu, Lin Liu, Rui Miao","doi":"10.1080/15592324.2021.2024405","DOIUrl":"https://doi.org/10.1080/15592324.2021.2024405","url":null,"abstract":"<p><p>Guanine nucleotide-binding (G) proteins, namely, phosphate-binding (P) loop GTPases, play a critical role in life processes among different species. Based on the structural characteristics, G proteins can be divided into heterotrimeric G proteins, small G proteins and multiple unique unconventional G proteins. The highly conserved unconventional G protein YchF is composed of a core G domain, an inserted coiled-coil domain, and a TGS domain from the N-terminus to the C-terminus. In this review, we compared the structural characteristics of the G domain in rice OsYchF1 with those of <i>Rattus norvegicus</i> heterotrimeric G protein α-subunit and human small G protein Ras-related G protein C and analyzed the binding modes of these G proteins with GTP or ATP by performing molecular dynamics simulations. In summary, it will provide new insights into the enormous diversity of biological function of G proteins.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":" ","pages":"2024405"},"PeriodicalIF":2.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8959515/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39762937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yan Lei, Huang He, Ali Raza, Zeng Liu, Ding Xiaoyu, Wang Guijuan, Lv Yan, Cheng Yong, Zou Xiling
{"title":"Exogenous melatonin confers cold tolerance in rapeseed (<i>Brassica napus</i> L.) seedlings by improving antioxidants and genes expression.","authors":"Yan Lei, Huang He, Ali Raza, Zeng Liu, Ding Xiaoyu, Wang Guijuan, Lv Yan, Cheng Yong, Zou Xiling","doi":"10.1080/15592324.2022.2129289","DOIUrl":"https://doi.org/10.1080/15592324.2022.2129289","url":null,"abstract":"<p><p>Rapeseed (<i>Brassica napus</i> L.) is an important oilseed crop globally. However, its growth and production are significantly influenced by cold stress. To reveal the protective role of exogenous melatonin (MEL) in cold tolerance, rapeseed seedlings were pretreated with different concentrations of MEL before cold stress. The results indicated that the survival rate was increased significantly by the MEL pretreatment under cold stress. Seedlings pretreated with 0.01 g L<sup>-1</sup> MEL were all survived and were used to analyze the physiological characteristics and the expression level of various genes related to cold tolerance. Under cold stress, exogenous MEL significantly increased the contents of proline, soluble sugar, and soluble protein; while the malondialdehyde content was decreased by exogenous MEL under cold stress. On the other hand, the activities of antioxidant defense enzymes such as catalase, peroxidase, and superoxide dismutase were also significantly enhanced. The results also showed that MEL treatment significantly upregulated the expression of <i>Cu-SOD, COR6.6</i> (<i>cold-regulated), COR15</i>, and <i>CBFs</i> (<i>C-repeat binding factor</i>) genes under cold stress. It was suggested exogenous MEL improved the content of osmotic regulatory substances to maintain the balance of cellular osmotic potential under cold stress and improved the scavenging capacity of reactive oxygen species by strengthening the activity of antioxidant enzymes and the cold-related genes expression.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":" ","pages":"2129289"},"PeriodicalIF":2.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9553147/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33491697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Functional characterization of C-TERMINALLY ENCODED PEPTIDE (CEP) family in <i>Brassica rapa</i> L.","authors":"Ziwen Qiu, Keqing Zhuang, Yiting Liu, Xiaomin Ge, Chen Chen, Songping Hu, Huibin Han","doi":"10.1080/15592324.2021.2021365","DOIUrl":"https://doi.org/10.1080/15592324.2021.2021365","url":null,"abstract":"<p><p>The small regulatory C-TERMINALLY ENCODED PEPTIDE (CEP) peptide family plays crucial roles in plant growth and stress response. However, little is known about this peptide family in Brassica species. Here, we performed a systematic analysis to identify the putative <i>Brassica rapa</i> L. <i>CEP</i> (<i>BrCEP</i>) gene family. In total, 27 <i>BrCEP</i> genes were identified and they were classified into four subgroups based on the CEP motifs similarity. <i>BrCEP</i> genes displayed distinct expression patterns in response to both developmental and several environmental signals, suggesting their broad roles during <i>Brassica rapa</i> development. Furthuremore, the synthetic BrCEP3 peptide accelerated <i>Brassica rapa</i> primary root growth in a hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) and Ca<sup>2+</sup> dependent manner. In summary, our work will provide fundamental insights into the physiological function of CEP peptides during <i>Brassica rapa</i> development.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":" ","pages":"2021365"},"PeriodicalIF":2.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8920145/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39775158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Transcriptome-wide identification of WRKY transcription factors and their expression profiles in response to methyl jasmonate in <i>Platycodon grandiflorus</i>.","authors":"Jing Li, Hanwen Yu, Mengli Liu, Bowen Chen, Nan Dong, Xiangwei Chang, Jutao Wang, Shihai Xing, Huasheng Peng, Liangping Zha, Shuangying Gui","doi":"10.1080/15592324.2022.2089473","DOIUrl":"https://doi.org/10.1080/15592324.2022.2089473","url":null,"abstract":"<p><p><i>Platycodon grandiflorus</i>, a perennial flowering plant widely distributed in China and South Korea, is an excellent resource for both food and medicine. The main active compounds of <i>P. grandiflorus</i> are triterpenoid saponins. WRKY transcription factors (TFs) are among the largest gene families in plants and play an important role in regulating plant terpenoid accumulation, physiological metabolism, and stress response. Numerous studies have been reported on other medicinal plants; however, little is known about WRKY genes in <i>P. grandiflorus</i>. In this study, 27 PgWRKYs were identified in the <i>P. grandiflorus</i> transcriptome. Phylogenetic analysis showed that PgWRKY genes were clustered into three main groups and five subgroups. Transcriptome analysis showed that the PgWRKY gene expression patterns in different tissues differed between those in Tongcheng City (Southern Anhui) and Taihe County (Northern Anhui). Gene expression analysis based on RNA sequencing and qRT-PCR analysis showed that most PgWRKY genes were expressed after induction with methyl jasmonate (MeJA). Co-expressing PgWRKY genes with triterpenoid biosynthesis pathway genes revealed four PgWRKY genes that may have functions in triterpenoid biosynthesis. Additionally, functional annotation and protein-protein interaction analysis of PgWRKY proteins were performed to predict their roles in potential regulatory networks. Thus, we systematically analyzed the structure, evolution, and expression patterns of PgWRKY genes to provide an important theoretical basis for further exploring the molecular basis and regulatory mechanism of WRKY TFs in triterpenoid biosynthesis.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":" ","pages":"2089473"},"PeriodicalIF":2.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/59/73/KPSB_17_2089473.PMC9225661.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40177651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Molecular mechanisms of <i>Piriformospora indica</i> mediated growth promotion in plants.","authors":"Anish Kundu, Jyothilakshmi Vadassery","doi":"10.1080/15592324.2022.2096785","DOIUrl":"https://doi.org/10.1080/15592324.2022.2096785","url":null,"abstract":"<p><p><i>Piriformospora indica</i> is a root endophyte having a vast host range in plants. Plant growth promotion is a hallmark of the symbiotic interaction of <i>P. indica</i> with its hosts. As a plant growth-promoting microorganism, it is important to know the mechanisms involved in growth induction. Hitherto, multiple reports have demonstrated various molecular mechanisms of <i>P. indica</i>-mediated growth promotion, including protein kinase-mediated pathway, enhanced nutrient uptake and polyamine-mediated growth phytohormone elevation. Here, we briefly present a discussion on the state-of-the-art molecular mechanisms of <i>P. indica</i>-mediated growth promotion in host plants, in order to obtain a future prospect on utilization of this microorganism for sustainable agriculture.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":" ","pages":"2096785"},"PeriodicalIF":2.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9272844/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40488902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}