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Molecular characterization of CeOLE6, a diverged SH oleosin gene, preferentially expressed in Cyperus esculentus tubers. CeOLE6的分子特征,CeOLE6是一种在香附块茎中优先表达的SH油脂素分化基因。
IF 3.6 3区 生物学
Planta Pub Date : 2024-10-23 DOI: 10.1007/s00425-024-04553-5
Zhi Zou, Xiaowen Fu, Jiaquan Huang, Yongguo Zhao
{"title":"Molecular characterization of CeOLE6, a diverged SH oleosin gene, preferentially expressed in Cyperus esculentus tubers.","authors":"Zhi Zou, Xiaowen Fu, Jiaquan Huang, Yongguo Zhao","doi":"10.1007/s00425-024-04553-5","DOIUrl":"10.1007/s00425-024-04553-5","url":null,"abstract":"<p><strong>Main conclusion: </strong>CeOLE6, a tuber-specific gene in tigernut, encodes a diverged SH oleosin that functions in oil accumulation via homo and heteromultimerization. Tigernut (Cyperus esculentus L.) is a rare example accumulating high levels of triacylglycerols (TAGs) in underground tubers; however, the mechanism underlying is poorly understood. Given essential roles of oleosins (OLEs) in oil accumulation, in this study, structural and functional analyses were conducted for CeOLE6, an oleosin gene preferentially expressed in tigernut tubers. Phylogenetic analysis revealed that CeOLE6 encodes a diverged oleosin in Clade SH, which also includes CeOLE4 and -5. Further synteny analysis and sequence comparison indicated that CeOLE6 is more likely to be a whole-genome duplication (WGD) repeat of CeOLE4, which underwent rapid evolution and deletion of the typical C-terminal insertion for SHs. Nevertheless, CeOLE6 retains the capacity of oligomerization and oil accumulation, because (i) CeOLE6 could not only interact with itself but also with CeOLE2 and -5, two tuber-dominant members belonging to Clades SL and SH, respectively, and (ii) overexpressing CeOLE6 in tobacco leaves could significantly enhance the TAG content. Though CeWRI1 exhibits a similar expression pattern as CeOLE6 during tuber development, both CeWRI1 and -3 could not activate the CeOLE6 promoter, implying that they are not transcription factors contributing tuber-specific activation of CeOLE6. These findings not only provide insights into CeOLE genes in tuber oil accumulation, but also lay a foundation for further genetic improvement in tigernut and other species.</p>","PeriodicalId":20177,"journal":{"name":"Planta","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505949","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}
引用次数: 0
Root exudation patterns of contrasting rice (Oryza sativa L.) lines in response to P limitation. 水稻(Oryza sativa L.)不同品系的根系渗出模式对 P 限制的响应。
IF 3.6 3区 生物学
Planta Pub Date : 2024-10-23 DOI: 10.1007/s00425-024-04556-2
Henning Schwalm, Christiana Staudinger, Mohammad-Reza Hajirezaei, Eva Mundschenk, Alireza Golestanifard, Maire Holz, Matthias Wissuwa, Eva Oburger
{"title":"Root exudation patterns of contrasting rice (Oryza sativa L.) lines in response to P limitation.","authors":"Henning Schwalm, Christiana Staudinger, Mohammad-Reza Hajirezaei, Eva Mundschenk, Alireza Golestanifard, Maire Holz, Matthias Wissuwa, Eva Oburger","doi":"10.1007/s00425-024-04556-2","DOIUrl":"https://doi.org/10.1007/s00425-024-04556-2","url":null,"abstract":"<p><strong>Main conclusion: </strong>Rice exudation patterns changed in response to P deficiency. Higher exudation rates were associated with lower biomass production. Total carboxylate exudation rates mostly decreased under P-limiting conditions. Within the rhizosphere, root exudates are believed to play an important role in plant phosphorus (P) acquisition. This could be particularly beneficial in upland rice production where P is often limited. However, knowledge gaps remain on how P deficiency shapes quality and quantity of root exudation in upland rice genotypes. We therefore investigated growth, plant P uptake, and root exudation patterns of two rice genotypes differing in P efficiency in semi-hydroponics at two P levels (low P = 1 µM, adequate P = 100 µM). Root exudates were collected hydroponically 28 and 40 days after germination to analyze total carbon (C), carbohydrates, amino acids, phenolic compounds spectrophotometrically and carboxylates using a targeted LC-MS approach. Despite their reported role in P solubilization, we observed that carboxylate exudation rates per unit root surface area were not increased under P deficiency. In contrast, exudation rates of total C, carbohydrates, amino acids and phenolics were mostly enhanced in response to low P supply. Overall, higher exudation rates were associated with lower biomass production in the P-inefficient genotype Nerica4, whereas the larger root system with lower C investment (per unit root surface area) in root exudates of the P-efficient DJ123 allowed for better plant growth under P deficiency. Our results reveal new insights into genotype-specific resource allocation in rice under P-limiting conditions that warrant follow-up research including more genotypes.</p>","PeriodicalId":20177,"journal":{"name":"Planta","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11499414/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505951","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}
引用次数: 0
Chromosome-level genome assembly and functional annotation of Citrullus colocynthis: unlocking genetic resources for drought-resilient crop development. 壳斗属植物染色体级基因组组装和功能注释:为抗旱作物开发挖掘基因资源。
IF 3.6 3区 生物学
Planta Pub Date : 2024-10-23 DOI: 10.1007/s00425-024-04551-7
Anestis Gkanogiannis, Hifzur Rahman, Rakesh Kumar Singh, Augusto Becerra Lopez-Lavalle
{"title":"Chromosome-level genome assembly and functional annotation of Citrullus colocynthis: unlocking genetic resources for drought-resilient crop development.","authors":"Anestis Gkanogiannis, Hifzur Rahman, Rakesh Kumar Singh, Augusto Becerra Lopez-Lavalle","doi":"10.1007/s00425-024-04551-7","DOIUrl":"https://doi.org/10.1007/s00425-024-04551-7","url":null,"abstract":"<p><strong>Main conclusion: </strong>The chromosome-level genome assembly of Citrullus colocynthis reveals its genetic potential for enhancing drought tolerance, paving the way for innovative crop improvement strategies. This study presents the first comprehensive genome assembly and annotation of Citrullus colocynthis, a drought-tolerant wild close relative of cultivated watermelon, highlighting its potential for enhancing agricultural resilience to climate change. The study achieved a chromosome-level assembly using advanced sequencing technologies, including PacBio HiFi and Hi-C, revealing a genome size of approximately 366 Mb with low heterozygosity and substantial repetitive content. Our analysis identified 23,327 gene models, that could encode stress response mechanisms for species' adaptation to arid environments. Comparative genomics with closely related species illuminated the evolutionary dynamics within the Cucurbitaceae family. In addition, resequencing of 27 accessions from the United Arab Emirates (UAE) identified genetic diversity, suggesting a foundation for future breeding programs. This genomic resource opens new avenues for the de novo domestication of C. colocynthis, offering a blueprint for developing crops with enhanced drought tolerance, disease resistance, and nutritional profiles, crucial for sustaining future food security in the face of escalating climate challenges.</p>","PeriodicalId":20177,"journal":{"name":"Planta","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11499410/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505948","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}
引用次数: 0
Development and drought escape response in Arabidopsis thaliana are regulated by AtPLC1 in response to abscisic acid. 拟南芥的发育和干旱逃逸反应受 AtPLC1 对脱落酸的调控。
IF 3.6 3区 生物学
Planta Pub Date : 2024-10-22 DOI: 10.1007/s00425-024-04554-4
Wei Wang, Yue Wang, Liping Luo, Jiaying Kou, Lulu Zhang, Chen Yang, Ning Yang
{"title":"Development and drought escape response in Arabidopsis thaliana are regulated by AtPLC1 in response to abscisic acid.","authors":"Wei Wang, Yue Wang, Liping Luo, Jiaying Kou, Lulu Zhang, Chen Yang, Ning Yang","doi":"10.1007/s00425-024-04554-4","DOIUrl":"https://doi.org/10.1007/s00425-024-04554-4","url":null,"abstract":"<p><strong>Main conclusion: </strong>AtPLC1 plays a critical role in plant growth, development, and response to drought stress. Phosphoinositide-specific phospholipase C (PI-PLC) hydrolyzes substrates to generate secondary messengers crucial for plant growth, development, and stress responses. Drought escape (DE) response is an adaptive strategy that plants employ under drought conditions. The expression levels of the flower meristem-specific gene APETALA 1 and flowering regulatory genes FLOWERING LOCUS T and SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1 were downregulated in plc1, and FLOWERING LOCUS C was upregulated. The flowering time of the plc1flc double mutant was earlier than that of the wild type. Transcriptome analysis revealed that the Gene Ontology of differentially expressed genes (DEGs) was enriched in abscisic acid (ABA) response signaling, and Kyoto Encyclopedia of Genes and Genomes analysis revealed differential gene expression annotated to plant hormone signaling pathways. Our experiments show that AtPLC1 is upregulated by ABA in Arabidopsis. Under ABA induction and water stress, wild-type plants exhibit a DE response, and the DE response in plc1 disappears. Expression levels of ABA signaling pathway transcription factors ABA-responsive element-binding factors 3 (ABF3) and ABF4 were downregulated in plc1. In conclusion, our study suggests that AtPLC1 participates in regulating plant growth and development and participates in the DE response through the regulation of ABA signaling pathway transcription factors ABF3/ABF4. The study enhances our comprehension of the role of AtPLC1 in plant development and drought stress, providing a theoretical foundation for further investigation into DE responses.</p>","PeriodicalId":20177,"journal":{"name":"Planta","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142472530","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}
引用次数: 0
Retraction Note to: Molecular characterization of the 14‑3‑3 gene family in rice and its expression studies under abiotic stress. 撤稿说明:水稻 14-3-3 基因家族的分子特征及其在非生物胁迫下的表达研究
IF 3.6 3区 生物学
Planta Pub Date : 2024-10-22 DOI: 10.1007/s00425-024-04557-1
Niti Yashvardhini, Saurav Bhattacharya, Shubho Chaudhuri, Dibyendu Narayan Sengupta
{"title":"Retraction Note to: Molecular characterization of the 14‑3‑3 gene family in rice and its expression studies under abiotic stress.","authors":"Niti Yashvardhini, Saurav Bhattacharya, Shubho Chaudhuri, Dibyendu Narayan Sengupta","doi":"10.1007/s00425-024-04557-1","DOIUrl":"https://doi.org/10.1007/s00425-024-04557-1","url":null,"abstract":"","PeriodicalId":20177,"journal":{"name":"Planta","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142472531","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}
引用次数: 0
Histochemical and molecular analyses reveal an insight into the scent volatiles synthesis and emission in ephemeral flowers of Murraya paniculata (L.) Jack. 组织化学和分子分析揭示了 Murraya paniculata (L.) Jack 昙花中香味挥发物的合成和释放。
IF 3.6 3区 生物学
Planta Pub Date : 2024-10-18 DOI: 10.1007/s00425-024-04552-6
Sinjini Datta, Shobhon Paul, Lopamudra Ballabh, Adinpunya Mitra
{"title":"Histochemical and molecular analyses reveal an insight into the scent volatiles synthesis and emission in ephemeral flowers of Murraya paniculata (L.) Jack.","authors":"Sinjini Datta, Shobhon Paul, Lopamudra Ballabh, Adinpunya Mitra","doi":"10.1007/s00425-024-04552-6","DOIUrl":"10.1007/s00425-024-04552-6","url":null,"abstract":"<p><strong>Main conclusion: </strong>Temporal histolocalization of floral volatiles in the petal epidermis of Murraya paniculata was found to be linked with the coordinated expression of candidate genes and successive accumulation of an internal pool of volatiles. Murraya paniculata (Rutaceae) is known for its highly fragrant ephemeral flowers that emit volatiles to attract nocturnal pollinators. To unfold the patterns of volatile emission in relation to floral life-span, we studied time-course accumulation and emission rate of scent volatiles at six timepoints of floral maturation, at an interval of 4 h starting from the bud stage to the senescence stage on the next day. This study revealed the maximum emission rate of scent volatiles at the anthesis stage at 18:00 h. This finding correlates well with the maximum accumulation of volatiles in the internal pool of the flowers at this stage. The key volatiles detected in both emitted and internal pools were benzaldehyde, benzeneacetaldehyde, linalool, caryophyllene, germacrene-D and α-farnesene. In addition, the internal pool also contained substantial amounts of indole, scopoletin, caffeine and osthole. To histochemically localize the temporal accumulation of major volatile groups in the epidermal cells, petal cross sections were stained with NaDi and ferric chloride to visualize terpenes and phenolics, respectively, under light microscope. Histolocalization studies showed a higher accumulation of terpenes at 14:00 h and 18:00 h, which subsequently was reduced as senescence approached. Significant phenolics in the abaxial and adaxial layers of the petal epidermis accumulated at 18:00 h and at the early senescence (06:00 h) stages. Furthermore, temporal localization of active shikimate dehydrogenase (SKDH) protein through in-gel activity assay demonstrated higher enzymatic activities at anthesis (18:00 h) and fully bloomed (02:00 h) stages, supporting the findings of higher accumulation of phenolic volatiles at 18:00 h and 06:00 h stages. Expression analysis of major candidate genes of floral scent volatiles pathway supported the hypothesis that the emission rate of floral fragrance reached its maximum at the anthesis (18:00 h) stage. In contrast, biosynthesis of scent compounds started at the bud (14:00 h) stage itself as indicated by the RT-PCR semi-quantitative estimation. As flowers of M. paniculata attract multiple pollinator species, this study could also serve as a springboard for pollination biology in Rutaceae, which includes important fruit crops.</p>","PeriodicalId":20177,"journal":{"name":"Planta","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142472529","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}
引用次数: 0
High-temperature stress in strawberry: understanding physiological, biochemical and molecular responses. 草莓的高温胁迫:了解生理、生化和分子反应。
IF 3.6 3区 生物学
Planta Pub Date : 2024-10-17 DOI: 10.1007/s00425-024-04544-6
Izhar Ullah, Muhammad Danish Toor, Bayram Ali Yerlikaya, Heba I Mohamed, Seher Yerlikaya, Abdul Basit, Attiq Ur Rehman
{"title":"High-temperature stress in strawberry: understanding physiological, biochemical and molecular responses.","authors":"Izhar Ullah, Muhammad Danish Toor, Bayram Ali Yerlikaya, Heba I Mohamed, Seher Yerlikaya, Abdul Basit, Attiq Ur Rehman","doi":"10.1007/s00425-024-04544-6","DOIUrl":"10.1007/s00425-024-04544-6","url":null,"abstract":"<p><strong>Main conclusion: </strong>Heat stress reduces strawberry growth and fruit quality by impairing photosynthesis, disrupting hormone regulation, and altering mineral nutrition. Multi-omics studies show extensive transcriptional, post-transcriptional, proteomic and metabolomic under high temperatures. Garden strawberry is a globally cultivated, economically important fruit crop highly susceptible to episodic heat waves and chronically rising temperatures associated with climate change. Heat stress negatively affects the growth, development, and quality of strawberries. Elevated temperatures affect photosynthesis, respiration, water balance, hormone signaling, and carbohydrate metabolism in strawberries. Heat stress reduces the size and number of leaves, the number of crowns, the differentiation of flower buds, and the viability of pollen and fruit set, ultimately leading to a lower yield. On a physiological level, heat stress reduces membrane stability, increases the production of reactive oxygen species, and reduces the antioxidant capacity of strawberries. Heat-tolerant varieties have better physiological and biochemical adaptation mechanisms compared to heat-sensitive varieties. Breeding heat-tolerant strawberry cultivars involves selection for traits such as increased leaf temperature, membrane thermostability, and chlorophyll content. Multi-omics studies show extensive transcriptional, post-transcriptional, proteomic, metabolomic, and ionomic reprogramming at high temperatures. Integrative-omics approaches combine multiple omics datasets to obtain a systemic understanding of the responses to heat stress in strawberries. This article summarizes the deciphering of strawberry responses to heat stress using physiological, biochemical, and molecular approaches that will enable the development of resilient adaptation strategies that sustain strawberry production under global climate change.</p>","PeriodicalId":20177,"journal":{"name":"Planta","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142472528","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}
引用次数: 0
Genome-wide analysis of Triticum aestivum bromodomain gene family and expression analysis under salt stress. 小麦溴链基因家族全基因组分析及盐胁迫下的表达分析
IF 3.6 3区 生物学
Planta Pub Date : 2024-10-15 DOI: 10.1007/s00425-024-04549-1
Yueduo Wang, Shenghai Shen, Zhaoming Wu, Weiqi Tao, Wei Zhang, Pei Yu
{"title":"Genome-wide analysis of Triticum aestivum bromodomain gene family and expression analysis under salt stress.","authors":"Yueduo Wang, Shenghai Shen, Zhaoming Wu, Weiqi Tao, Wei Zhang, Pei Yu","doi":"10.1007/s00425-024-04549-1","DOIUrl":"10.1007/s00425-024-04549-1","url":null,"abstract":"<p><strong>Main conclusion: </strong>This study identified 82 wheat BRD genes, revealing both conserved evolutionary and functional characteristics across plant species and novel features specific to wheat. GTE8-12 cluster TaBRDs were found as positive response to salt stress. Bromodomain-containing proteins (BRDs) are crucial in histone acetylation \"reading\" and chromatin remodeling in eukaryotes. Despite some of their members showing importance in various biological processes in plants, our understanding of the BRD family in wheat (Triticum aestivum) remains limited. This study comprehensively analyzes the T. aestivum BRD (TaBRD) family. We identified 82 TaBRD genes in wheat genome encoding hydrophobic proteins with a conserved pocket structure. Phylogenetic analysis classified these genes into 16 distinct clusters, with conserved protein motifs and gene structures within clusters but diverse patterns across clusters. Gene duplication analysis revealed that whole-genome or segmental duplication events were the primary expansion mechanism for the TaBRD family, with purifying selection acting on these genes. Subcellular localization and Gene Ontology (GO) analyses indicated that TaBRD proteins are predominantly nuclear-localized and involved in transcription regulation and RNA metabolism. Promoter analysis and interaction network prediction suggested diverse regulatory mechanisms for TaBRDs. Notably, TaBRDs from the GTE8-12 cluster were enriched with cis-elements responsive to abscisic acid (ABA), methyl jasmonate (MeJA), and light, implying their involvement in physiological functions and abiotic stress responses. Expression analysis confirmed tissue-specific patterns and responsiveness to salinity stress. This comprehensive study enhances our understanding of the BRD family in higher plants and provides a foundation for developing salt-tolerant wheat varieties.</p>","PeriodicalId":20177,"journal":{"name":"Planta","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142472527","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}
引用次数: 0
Characterization of Al3+-toxicity responses and molecular mechanisms underlying organic acid efflux in Vigna mungo (L.) Hepper. Vigna mungo (L.) Hepper 中 Al3+ 毒性反应的特征和有机酸外流的分子机制。
IF 3.6 3区 生物学
Planta Pub Date : 2024-10-14 DOI: 10.1007/s00425-024-04547-3
Uma Kanta Chowra, Preetom Regon, Yuriko Kobayashi, Hiroyuki Koyama, Sanjib Kumar Panda
{"title":"Characterization of Al<sup>3+</sup>-toxicity responses and molecular mechanisms underlying organic acid efflux in Vigna mungo (L.) Hepper.","authors":"Uma Kanta Chowra, Preetom Regon, Yuriko Kobayashi, Hiroyuki Koyama, Sanjib Kumar Panda","doi":"10.1007/s00425-024-04547-3","DOIUrl":"10.1007/s00425-024-04547-3","url":null,"abstract":"<p><p>Aluminium (Al<sup>3+</sup>) toxicity in acidic soils poses a significant challenge for crop cultivation and reduces crop productivity. The primary defense mechanism against Al<sup>3+</sup> toxicity involves the activation of organic acid secretion. In this study, responses of 9 Vigna mungo cultivars to Al<sup>3+</sup> toxicity were investigated, with a particular emphasis on the root system and crucial genes involved in Al<sup>3+</sup> tolerance using molecular cloning and expression analysis. Sensitive blackgram-KM2 cultivars exposed to 100-µM Al<sup>3+</sup> toxicity for 72 h exhibited a root-growth inhibition of approximately 66.17%. Significant loss of membrane integrity and structural deformative roots were found to be the primary symptoms of Al<sup>3+</sup> toxicity in blackgram. MATE (Multidrug and Toxic Compound Extrusion) and ALS3 (Aluminium Sensitive 3) genes were successfully cloned from a sensitive blackgram cv KM2 with phylogenetic analysis revealing their evolutionary relationship to Vigna radiata and Glycine max. The MATE gene is mainly localized in the plasma membrane, and highly expressed under Al<sup>3+</sup>, thus suggesting its role in transports of citrate-Al<sup>3+</sup> complexes, and detoxifying Al<sup>3+</sup> within plant cells. In addition, ALS3 was also induced under Al<sup>3+</sup> toxicity, which codes the UDP-glucose transporter and is required for the maintenance of ions homeostasis. In summary, this study highlights the understanding of Al<sup>3+</sup> toxicity and underlying molecular mechanisms linked to the efflux of organic acid in blackgram, ultimately aiding the framework for the development of strategies to enhance the resilience of blackgram and other pulse crops in Al-rich soils.</p>","PeriodicalId":20177,"journal":{"name":"Planta","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142472526","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}
引用次数: 0
BEACH domain-containing protein SPIRRIG facilitates microtubule cytoskeleton-associated trichome morphogenesis in Arabidopsis. 含BEACH结构域的蛋白质SPIRRIG促进拟南芥中与微管细胞骨架相关的毛状体形态发生。
IF 3.6 3区 生物学
Planta Pub Date : 2024-10-14 DOI: 10.1007/s00425-024-04545-5
Linyu Niu, Wenjuan Xie, Qian Li, Yali Wang, Xuanyu Zhang, Muyang Shi, Jingyu Zeng, Mengxiang Li, Yanling Wang, Jingxia Shao, Fei Yu, Lijun An
{"title":"BEACH domain-containing protein SPIRRIG facilitates microtubule cytoskeleton-associated trichome morphogenesis in Arabidopsis.","authors":"Linyu Niu, Wenjuan Xie, Qian Li, Yali Wang, Xuanyu Zhang, Muyang Shi, Jingyu Zeng, Mengxiang Li, Yanling Wang, Jingxia Shao, Fei Yu, Lijun An","doi":"10.1007/s00425-024-04545-5","DOIUrl":"10.1007/s00425-024-04545-5","url":null,"abstract":"<p><strong>Main conclusion: </strong>Our studies reveal the involvement of SPI in cytoskeleton-associated trichome morphogenesis, expanding the roles of SPI in regulating plant epidermal cell development. Acquisition of distinct shapes is crucial for cells to perform their biological functions in multicellular organisms. Trichomes are specialized epidermal cells of plant aerial parts, offering an excellent paradigm for dissecting the underlying regulatory mechanism of plant cell shape development at the single-cell level. SPIRRIG (SPI) that encodes a BEACH domain-containing protein was initially identified to regulate trichome branch extension, but the possible pathway(s) through which SPI regulates trichome morphogenesis remain unclear. Here, we report that SPI facilitates microtubule-associated regulation on trichome branching in Arabidopsis. Functional loss of SPI results in trichome morphogenesis hyper-sensitive to the microtubule-disrupting drug oryzalin, implying SPI may mediate microtubule stability during trichome development. Accordingly, spi mutant has less-branched trichomes. Detailed live-cell imaging showed that the spatio-temporal microtubule organization during trichome morphogenesis is aberrant in spi mutants. Further genetic investigation indicated that SPI may cooperate with ZWICHEL (ZWI) to modulate microtubule dynamics during trichome morphogenesis. ZWI encodes a kinesin-like calmodulin-binding protein (KCBP), whose distribution is necessary for the proper microtubule organization in trichomes, and zwi mutants produce less-branched trichomes as well. Trichome branching is further inhibited in spi-3 zwi-101 double mutants compared to either of the single mutant. Moreover, we found SPI could co-localize with the MYTH4 domain of ZWI. Taken together, our results expand the role of SPI in regulating trichome morphogenesis and also reveal a molecular and genetic pathway in plant cell shape formation control.</p>","PeriodicalId":20177,"journal":{"name":"Planta","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142472525","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}
引用次数: 0
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