PlantaPub Date : 2024-12-12DOI: 10.1007/s00425-024-04582-0
Bo Gao, Faqing Tao, Mulan Wang, Xing Huang, Yuanxue Lu, Yanxia Jia, Xudong Zhang, Weiqi Li
{"title":"Ordered rise and disordered fall: dynamic changes of membrane lipids during girdling-induced tree mortality in Populus yunnanensis.","authors":"Bo Gao, Faqing Tao, Mulan Wang, Xing Huang, Yuanxue Lu, Yanxia Jia, Xudong Zhang, Weiqi Li","doi":"10.1007/s00425-024-04582-0","DOIUrl":"10.1007/s00425-024-04582-0","url":null,"abstract":"<p><p>Understanding the mechanisms behind drought-induced tree mortality is crucial for predicting the impact of global climate change on forests. We studied the mechanism at the cellular level in Populus yunnanensis by profiling membrane lipid molecules in leaves, branch phloem, top and bottom trunk phloem under trunk-girdling-induced drought conditions. We found that both lipid composition and content changed, depending on the tree's tissue positions and the progression of the girdling effect. The compositional changes were similar between the leaves and branches and between the top and bottom trunk phloem. The lipid content initially increased and then decreased until complete degradation, with similar fold increases between leaves and branch phloem, and between top and bottom trunk phloem. However, the fold increase in the former two was significantly lower than that in the latter two. The lipid composition remained stable during the increase but changed during the decrease. The decrease in phloem lipids occurred later than in leaves and simultaneously across positions. Our findings provide novel insights into the mechanisms of water deficit and carbohydrate allocation in drought-induced tree mortality, and suggest that the onset of phloem lipid degradation could serve as a threshold for predicting tree mortality.</p>","PeriodicalId":20177,"journal":{"name":"Planta","volume":"261 1","pages":"13"},"PeriodicalIF":3.6,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142814118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PlantaPub Date : 2024-12-11DOI: 10.1007/s00425-024-04589-7
Kangqi Lin, Ze Yi, Sulian Lv, Bo Zhang, Zijin Guo, Yinxin Li
{"title":"Uncovering the key lncRNAs in regulating cadmium accumulation and translocation in sweet sorghum.","authors":"Kangqi Lin, Ze Yi, Sulian Lv, Bo Zhang, Zijin Guo, Yinxin Li","doi":"10.1007/s00425-024-04589-7","DOIUrl":"10.1007/s00425-024-04589-7","url":null,"abstract":"<p><strong>Main conclusion: </strong>1988 lncRNAs were identified in sweet sorghum roots under cadmium treatment; lncRNA 15962 and lncRNA 11558 were validated to be the key lncRNAs involved in regulating cadmium accumulation and translocation. Cadmium (Cd) has become one of the most harmful and widespread pollutants with industry development. Sweet sorghum is an ideal plant for phytoremediation of Cd-contaminated soil. However, little is known about the regulatory role of long non-coding RNAs (lncRNAs) associated with Cd stress response in sweet sorghum. Here, lncRNA-seq was carried out in the roots of two contrasting sweet sorghum genotypes (high-Cd accumulation genotype 'H18', and low-Cd accumulation genotype 'L69'). A total of 1988 lncRNAs were characterized, including 52 and 69 differentially expressed lncRNAs in 'H18' and 'L69' in response to Cd stress, respectively. Furthermore, the trans- or cis-target genes of lncRNAs were investigated. Then, 65 lncRNAs were characterized as the probable target of 117 miRNAs and 1888 genes were identified as putative cis-target genes of Cd-responsive lncRNAs. The dual-luciferase reporter assay indicated lncRNA 15962 may serve as the endogenous target mimics of sbi-miR5565e, which targeted two genes (Sobic.005G212900 and Sobic.009G144700) involved in cell wall metabolism. Four cis-target genes including SbYS1 which encoding a Cd chelate transporter, were up-regulated by overexpression of their corresponding lncRNAs in sweet sorghum protoplasts, suggesting the positive regulatory role of lncRNAs to these cis-target genes. Moreover, the expression of SbYS1 decreased when lncRNA 11558 was inhibited by exogenous miRNA application in 'H18' seedlings, further demonstrating the positive regulatory role of lncRNA 11558 to SbYS1. Altogether, our findings shed light on the regulatory role of lncRNAs associated with Cd accumulation and translocation in sweet sorghum.</p>","PeriodicalId":20177,"journal":{"name":"Planta","volume":"261 1","pages":"12"},"PeriodicalIF":3.6,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142807865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Phyto-nutraceutical promise of Brassica vegetables in post-genomic era: a comprehensive review.","authors":"Saurabh Singh, Anjan Das, Rajender Singh, Hela Chikh-Rouhou, Srija Priyadarsini, Alok Nandi","doi":"10.1007/s00425-024-04587-9","DOIUrl":"10.1007/s00425-024-04587-9","url":null,"abstract":"<p><strong>Main conclusion: </strong>Brassica vegetables are one of the possible solutions to tackle the emerging human diseases and malnutrition due to their rich content of phyto-nutraceutaical compounds. The genomics enabled tools have facilitated the elucidation of molecular regulation, mapping of genes/QTLs governing nutraceutical compounds, and development of nutrient-rich Brassica vegetables. The enriched food products or foods as whole termed as functional foods are intended to provide health benefits. The 2500 year old Hippocratic phrase 'let thy food be thy medicine and thy medicine be thy food' remained in anonymity due to lack of sufficient evidence. However, today, we are facing reappraisal of healthy nutritious functional foods in battling diseases. In this context, the Brassica vegetables represent the most extensively investigated class of functional foods. An optimal consumption of Brassica vegetables is associated with lowering the risks of several types of cancer, chronic diseases, cardiovascular disease, and help in autism. In the post-genomic era, the integration of genetic and neoteric omics tools like transcriptomics, metabolomics, and proteomics have illuminated the downstream genetic mechanisms governing functional food value of Brassica vegetables. In this review, we have summarized in brief the phyto-nutraceutical profile and their functionality in Brassica vegetables. This review also highlights the progress made in identification of candidate genes/QTLs for accumulation of bioactive compounds in Brassica vegetables. We summarize the molecular regulation of major phytochemicals and breeding triumphs in delivering multifunctional Brassica vegetables.</p>","PeriodicalId":20177,"journal":{"name":"Planta","volume":"261 1","pages":"10"},"PeriodicalIF":3.6,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142801979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PlantaPub Date : 2024-12-10DOI: 10.1007/s00425-024-04573-1
Yi Tang, Ke Chen, Yanan Guo, Tianrui Li, Na Kuang, Zhixuan Liu, Haona Yang
{"title":"Investigating the mechanism of auxin-mediated fulvic acid-regulated root growth in Oryza sativa through physiological and transcriptomic analyses.","authors":"Yi Tang, Ke Chen, Yanan Guo, Tianrui Li, Na Kuang, Zhixuan Liu, Haona Yang","doi":"10.1007/s00425-024-04573-1","DOIUrl":"10.1007/s00425-024-04573-1","url":null,"abstract":"<p><p>As rice is one of the most crucial staple food sources worldwide, enhancing rice yield is paramount for ensuring global food security. Fulvic acid (FA), serving as a plant growth promoter and organic fertilizer, holds significant practical importance in studying its impact on rice root growth for improving rice yield and quality. This study investigated the effects of different concentrations of FA on the growth of rice seedlings. The results indicated that 0.05 g/L FA could promote the growth of rice seedlings, while 0.5 g/L FA inhibited root growth, reduced cell activity and enzyme activity in the root tips, and accumulated reactive oxygen species in root cells. To further elucidate the molecular mechanisms underlying these effects, we performed transcriptomic analysis and found that auxin (Aux) may be involved in the growth process mediated by FA. Furthermore, transcriptome heatmap analysis revealed a significant upregulation of the Aux/indoleacetic acid (Aux/IAA) gene family after FA treatment, suggesting that this gene family plays a crucial role in the impact of FA on root growth. Additionally, by detecting endogenous Aux content and adding exogenous Aux inhibitors, we confirmed the involvement of FA in rice seedling root growth as well as in the synthesis and transduction pathway of Aux.</p>","PeriodicalId":20177,"journal":{"name":"Planta","volume":"261 1","pages":"9"},"PeriodicalIF":3.6,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142801976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Plant growth-promoting Bacillus amyloliquefaciens orchestrate homeostasis under nutrient deficiency exacerbated drought and salinity stress in Oryza sativa L. seedlings.","authors":"Nikita Bisht, Tanya Singh, Mohd Mogees Ansari, Harshita Joshi, Shahank Kumar Mishra, Puneet Singh Chauhan","doi":"10.1007/s00425-024-04585-x","DOIUrl":"10.1007/s00425-024-04585-x","url":null,"abstract":"<p><strong>Main conclusion: </strong>Nutrient deficiency intensifies drought and salinity stress on rice growth. Bacillus amyloliquefaciens inoculation provides resilience through modulation in metabolic and gene regulation to enhance growth, nutrient uptake, and stress tolerance. Soil nutrient deficiencies amplify the detrimental effects of abiotic stresses, such as drought and salinity, creating substantial challenges for overall plant health and crop productivity. Traditional methods for developing stress-resistant varieties are often slow and labor-intensive. Previously, we demonstrated that plant growth-promoting rhizobacteria Bacillus amyloliquefaciens strain SN13 effectively alleviates stress induced by sub-optimum nutrient conditions in rice. In this study, we evaluated the effectiveness of SN13 in reducing the compounded impacts of drought and salinity under varying nutrient regimes in rice seedlings. The results demonstrated that PGPR inoculation not only improved the growth parameters, nutrient content, and physio-biochemical characteristics under nutrient-limited conditions, but also reduced the oxidative stress markers. The altered expression of stress-related and transcription factor genes (USP, DEF, CYP450, GST, MYB, and bZIP) revealed the regulatory effect of PGPR in enhancing stress tolerance through these genes. GC-MS-based untargeted metabolomic analysis revealed that PGPR significantly influenced various metabolic pathways, including galactose metabolism, fructose and mannose metabolism, and fatty acid biosynthesis pathways, suggesting that PGPR affects both energy production and stress-protective mechanisms, facilitating better growth and survival of rice seedlings.</p>","PeriodicalId":20177,"journal":{"name":"Planta","volume":"261 1","pages":"8"},"PeriodicalIF":3.6,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142792327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Silencing CaPIP5K4-1 leads to decreased male fertility in Capsicum annuum L.","authors":"Weifu Kong, Panpan Duan, Yuhang Wang, Tao Zhang, Mianzhu Huang, Jingtao Kang, Lina Wang, Bingqiang Wei, Yajun Chang","doi":"10.1007/s00425-024-04584-y","DOIUrl":"10.1007/s00425-024-04584-y","url":null,"abstract":"<p><strong>Main conclusion: </strong>Phosphatidylinositol 4-phosphate 5-kinase gene CaPIP5K4-1 is highly expressed in the pepper anthers. Virus-induced gene silencing of CaPIP5K4-1 leads to reduced male fertility in pepper. The phosphatidylinositol 4-phosphate 5-kinase (PIP5K) is a pivotal enzyme in the phosphatidylinositol signaling pathway, and its crucial involvement in both plant development and stress response has been established. Here, we found that the expression of CaPIP5K4-1 in pepper was significantly higher in the fertile flower buds compared to sterile flower buds. Furthermore, its expression was validated in anthers and pollens by qRT-PCR and RNA-ISH assays, respectively. Its GFP fusion protein was mainly located on the plasma membrane. Silencing CaPIP5K4-1 in fertile pepper accessions resulted in wrinkled pollen grain cell walls, decreased pollen germination efficiency, and inhibited pollen tube growth. The transcription levels of multiple genes in the phosphatidylinositol signaling pathway were also assessed. Five phospholipase C (PLC) genes were downregulated in silenced plants. On the contrary, inositol phosphatase SAC and phosphatase and tensin homolog (PTEN) were upregulated. This study reported the role of CaPIP5K4-1 in pepper male fertility and provided insights into the regulatory mechanisms of PI signaling in pepper.</p>","PeriodicalId":20177,"journal":{"name":"Planta","volume":"261 1","pages":"7"},"PeriodicalIF":3.6,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142771068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PlantaPub Date : 2024-12-03DOI: 10.1007/s00425-024-04579-9
Dong Liu, Ming-Juan Li, Jin-Song Luo, Hai-Fei Chen, Yong Yang, Gui Xiao, Jun Wu, Abdelbagi M Ismail, Zhen-Hua Zhang
{"title":"Overexpression of OsSTP1 increases grain yield via enhancing carbohydrate metabolism and transport in rice.","authors":"Dong Liu, Ming-Juan Li, Jin-Song Luo, Hai-Fei Chen, Yong Yang, Gui Xiao, Jun Wu, Abdelbagi M Ismail, Zhen-Hua Zhang","doi":"10.1007/s00425-024-04579-9","DOIUrl":"10.1007/s00425-024-04579-9","url":null,"abstract":"<p><strong>Main conclusion: </strong>Overexpression of OsSTP1 enhances the non-structural carbohydrate remobilization in the source, starch accumulation in grains, and the transportation of carbohydrates from source to sink during the filling stage. The sugar transporter protein (STP) is the best-characterized subfamily of the monosaccharide transporter (MST) family and plays critical roles in regulating plant stress tolerance, growth, and development. However, the role of STPs in regulating rice yield is poorly understood. In this study, we report that compared with Taipei 309, overexpression of OsSTP1 can achieve higher rice yield. We demonstrate that OsSTP1 mRNA levels are higher than those of the other seven STPs in mixed samples of leaf sheaths, stems, and nodes at 12 days after pollination (DAP). OsSTP1 is prominently expressed in the leaf sheaths, stems, and nodes at the grain filling stage. Subcellular localization analysis revealed that OsSTP1 is localized in the plasma membrane. Overexpression of OsSTP1 increased the activities of amylase (AMY) and sucrose phosphate synthase (SPS) in mixed samples of leaf sheaths, stems, and nodes at 12 DAP, the sucrose content of the phloem exudate, and accumulation of soluble sugars and starch in panicles, ultimately increasing seed-setting rates and grain yields in the Taipei 309 cultivar. These findings indicate that overexpression of OsSTP1 can improve grain yield by synergistically promoting non-structural carbohydrate (NSC) remobilization and transportation.</p>","PeriodicalId":20177,"journal":{"name":"Planta","volume":"261 1","pages":"5"},"PeriodicalIF":3.6,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142771064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PlantaPub Date : 2024-12-03DOI: 10.1007/s00425-024-04580-2
John M Grunseich, Pei-Cheng Huang, Julio S Bernal, Michael Kolomiets
{"title":"Western corn rootworm resistance in maize persists in the absence of jasmonic acid.","authors":"John M Grunseich, Pei-Cheng Huang, Julio S Bernal, Michael Kolomiets","doi":"10.1007/s00425-024-04580-2","DOIUrl":"10.1007/s00425-024-04580-2","url":null,"abstract":"<p><strong>Main conclusion: </strong>Larva growth, survival, and development speed were not affected by the absence of jasmonic acid (JA) indicating that JA does not have a direct role in maize resistance to western corn rootworm. Jasmonic acid (JA) is a plant hormone that regulates multiple physiological processes including defense against herbivory by chewing insects. Previous research showed its importance for resistance to aboveground herbivory. While few studies have investigated the role of JA in resistance to belowground root-feeding herbivores, none has directly tested the role of JA in such resistance. In this study, we used an opr7opr8 double mutant to directly test the role of JA in resistance to western corn rootworm (Diabrotica virgifera virgifera, WCR), a devastating and specialist pest of maize. The opr7opr8 double mutant is deficient in JA accumulation as we found that it does not accumulate JA nor JA-Ile independently of exposure to WCR. We found no significant difference in growth (body mass), survival, and development of WCR larvae in response to JA deficiency, suggesting that disruption of JA biosynthesis does not impact resistance in maize roots to WCR. Additionally, we observed no significant effect on loss of root tissue caused by WCR associated with JA deficiency, while we found a reduction in shoot growth (mass) associated with WCR herbivory in the opr7opr8 mutant that was not observed in the wildtype. This suggested a role for JA in aboveground growth response to WCR herbivory rather than resistance to WCR.</p>","PeriodicalId":20177,"journal":{"name":"Planta","volume":"261 1","pages":"6"},"PeriodicalIF":3.6,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142771091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PlantaPub Date : 2024-11-29DOI: 10.1007/s00425-024-04581-1
Amnon Cochavi
{"title":"Broomrape-host interaction: host morphology and physiology as metrics for infestation.","authors":"Amnon Cochavi","doi":"10.1007/s00425-024-04581-1","DOIUrl":"10.1007/s00425-024-04581-1","url":null,"abstract":"<p><strong>Main conclusion: </strong>In contrast to other plant pests, broomrape, parasitic plant, rely on maintaining the productivity of the host plant to complete their life cycle. Parasitic plants, particularly those in the Orobanchaceae family, rely on their host plants to complete their life cycle. Unlike other plant parasites such as fungi and bacteria, which exploit their hosts regardless of their physiological status, parasitic plants development is linked to the host productivity due to their mutual physiological dependence on water availability and sugar metabolism. Presently, most research focuses on the damage caused to the host after the parasite completes its life cycle, including inflorescence emergence and seed dispersal. However, the interaction between parasite and host begins long before these stages. This implies that certain physiological adaptations are necessary to sustain the parasite's development while maintaining the host's productivity. In this review, I compile existing knowledge regarding changes in host physiology during the early developmental stages of parasitic plants, spanning from attachment to inflorescence emergence. Additionally, I highlight knowledge gaps that should be addressed to understand how hosts sustain themselves throughout extended periods of parasitism.</p>","PeriodicalId":20177,"journal":{"name":"Planta","volume":"261 1","pages":"4"},"PeriodicalIF":3.6,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11607093/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142751023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}