Functional Plant Biology最新文献

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The interplay of nitrogen metabolism and root attributes in governing yield potential of pea cultivars subjected to simulated acid rain. 模拟酸雨条件下豌豆品种氮素代谢与根系性状在控制产量潜力中的相互作用
IF 2.9 4区 生物学
Functional Plant Biology Pub Date : 2026-01-23 DOI: 10.1071/FP25230
Jigyasa Prakash, Shashi Bhushan Agrawal, Madhoolika Agrawal
{"title":"The interplay of nitrogen metabolism and root attributes in governing yield potential of pea cultivars subjected to simulated acid rain.","authors":"Jigyasa Prakash, Shashi Bhushan Agrawal, Madhoolika Agrawal","doi":"10.1071/FP25230","DOIUrl":"10.1071/FP25230","url":null,"abstract":"<p><p>Acid rain threatens plant productivity, including crop yield. The yield of pea (Pisum sativum) is intimately linked to nodulation, nitrogen (N) assimilation, and fixation processes. While the effects of simulated acid rain (SiAR) on crops have been well documented, the specific impacts on N-assimilation remain inadequately understood. This study aimed to investigate the adaptations exhibited by roots and efficiency of N-metabolism in leaves of two widely cultivated Indian pea cultivars (Samridhi and Nandini) in response to varying levels of SiAR (pH 5.6, 5.0, and 4.5). Both cultivars exhibited altered root morphology under SiAR, with increased relative root growth rate at pH 5.0 and 4.5. Increasing SiAR acidity elicited differential responses in N-assimilation enzyme activities across growth stages in both cultivars. SiAR stimulated the activity of nitrate reductase with reduced nitrite reductase and leghemoglobin content in the reproductive growth stage of both cultivars. Under SiAR, both cultivars showed modified seed yield and quality traits; however, cv. Nandini demonstrated greater resilience due to enhanced glutamate dehydrogenase activity, suggesting more efficient N-metabolism than cv. Samridhi. We conclude that the decrease in yield is primarily attributed to the disruption of N-metabolism, specifically inhibition of the glutamine synthetase and glutamate synthase pathway. These findings have significant implications for agricultural practices, in the selection and development of crop varieties with enhanced nitrogen fixation capabilities, to mitigate the negative effects and improve resilience to acid rain.</p>","PeriodicalId":12483,"journal":{"name":"Functional Plant Biology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145905921","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}
引用次数: 0
Unveiling root morpho-anatomical traits driving tolerance to waterlogging, salinity, and their combination in Festuca arundinacea. 揭示羊茅耐涝、耐盐及其组合的根系形态解剖特征。
IF 2.9 4区 生物学
Functional Plant Biology Pub Date : 2026-01-23 DOI: 10.1071/FP25193
C E Di Bella, F E Menon-Martínez, A Calvete, T C Sandá, G G Striker, A A Grimoldi
{"title":"Unveiling root morpho-anatomical traits driving tolerance to waterlogging, salinity, and their combination in Festuca arundinacea.","authors":"C E Di Bella, F E Menon-Martínez, A Calvete, T C Sandá, G G Striker, A A Grimoldi","doi":"10.1071/FP25193","DOIUrl":"10.1071/FP25193","url":null,"abstract":"<p><p>Understanding root traits that confer tolerance to multiple abiotic stresses is key to improving forage crop resilience. This study evaluated morpho-anatomical root traits associated with tolerance to waterlogging (W), salinity (S), and their combination (SW) in ten tall fescue (Festuca arundinacea) accessions. Tolerance index (TI) was positively correlated with new root formation and root length under all stress types, and with root porosity under SW. The most tolerant accession, Temora, exhibited pronounced plasticity: increased aerenchyma and cortex area under W, reduced xylem vessel area under S, and a combination of both responses under SW. Anatomical plasticity was closely associated with improved stress tolerance. Moreover, root porosity and aerenchyma were positively correlated, although differences in porosity between accessions for a given aerenchyma value suggest functional variability in internal aeration. These findings highlight that both constitutive traits (e.g. baseline porosity) and plastic responses (e.g. aerenchyma development, vessel adjustment) underpin stress tolerance in tall fescue. The results provide novel evidence of trait-specific contributions under different stress scenarios, offering useful selection criteria for breeding programs targeting complex environmental conditions.</p>","PeriodicalId":12483,"journal":{"name":"Functional Plant Biology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145774279","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}
引用次数: 0
Pigment disorganization in Salvia rosmarinus under drought and nitrogen addition in a Mediterranean shrubland. 地中海灌丛干旱和氮添加下迷迭香鼠尾草色素分解。
IF 2.9 4区 生物学
Functional Plant Biology Pub Date : 2026-01-23 DOI: 10.1071/FP25146
Raúl Ochoa-Hueso, Paschalis Chatzopoulos, Ramón Casimiro-Soriguer
{"title":"Pigment disorganization in Salvia rosmarinus under drought and nitrogen addition in a Mediterranean shrubland.","authors":"Raúl Ochoa-Hueso, Paschalis Chatzopoulos, Ramón Casimiro-Soriguer","doi":"10.1071/FP25146","DOIUrl":"10.1071/FP25146","url":null,"abstract":"<p><p>Mediterranean basin shrublands are biodiversity hotspots that are currently at risk due to concurrent global change drivers. Here, we investigated the simultaneous effects of a prolonged drought period and increased atmospheric nitrogen (N) deposition on photosynthetic and photoprotective pigments in rosemary (Salvia rosmarinus Spenn.), a widespread iconic Mediterranean woody species, in central Spain. We examined the concentrations and degree of coordination (coupling) of eight photosynthetic and photoprotective pigments under four N addition levels (0, 10, 20, and 50 kg N ha-1 year-1), sampled once immediately after an extended natural summer drought event and again after a two-month recovery period during which plants received ambient precipitation. Our results showed that prolonged summer drought had a pronounced impact, leading to a reduction in chlorophyll, lutein, neoxanthin, and β-carotene concentrations, while increasing the concentrations of photoprotective pigments associated with the xanthophyll cycle, particularly antheraxanthin and zeaxanthin. Drought also caused a disorganisation (decoupling) of pigments, indicating poor metabolic homeostasis under extreme climatic conditions. On the other hand, recovery from drought resulted in increased coordination (coupling). The effects of N addition were minor and mostly associated with greater β-carotene concentrations after drought that we interpreted as indicative of greater oxidative stress. Our findings suggest that extreme drought events will likely have greater effects on pigment metabolism in Mediterranean woody plants than increased N deposition, although interactions between the two global change drivers could amplify physiological disruptions. Our results are among the first to show the metabolic decoupling of plants to concurrent global change drivers, paving the way for new studies focusing on understanding the coordination of physiological responses under stress rather than solely focusing on physiological responses per se.</p>","PeriodicalId":12483,"journal":{"name":"Functional Plant Biology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145741910","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}
引用次数: 0
Identification and expression analysis of folate-biopterin transporter (FBT) genes in grape berry reveals candidates associated with fruit ripening. 葡萄果实中与成熟相关的叶酸-生物terin转运蛋白(FBT)基因的鉴定和表达分析
IF 2.9 4区 生物学
Functional Plant Biology Pub Date : 2026-01-23 DOI: 10.1071/FP25351
Rui-Min Hu, Hao-Yu Hao, Jing Zhang, Rui Sun, Ding-Ding Zuo, Da-Long Guo
{"title":"Identification and expression analysis of folate-biopterin transporter (FBT) genes in grape berry reveals candidates associated with fruit ripening.","authors":"Rui-Min Hu, Hao-Yu Hao, Jing Zhang, Rui Sun, Ding-Ding Zuo, Da-Long Guo","doi":"10.1071/FP25351","DOIUrl":"10.1071/FP25351","url":null,"abstract":"<p><p>The folate-biopterin transporter (FBT) family is a vital class of membrane transport proteins involved in folate and biopterin transport. Exogenous folate applied at the early stage of fruit development was shown to accelerate grape ripening; therefore, identifying FBTs in grape and analyzing their expression is crucial for understanding the ripening mechanism. This study identified ten FBT genes. All the proteins were highly hydrophobic and predicted to localize in the cell membrane based on bioinformatic analysis. The promoters of VvFBTs contained cis-acting elements related to plant growth and development. A transcriptional regulatory network centered on the VvFBT genes was constructed, and GO enrichment analysis revealed that these genes were associated with grape growth and development. Protein interaction network analysis revealed that proteins closely associated with VvFBTs included enzymes involved in folate synthesis. The quantitative real-time PCR analyses revealed that the expression of VvFBT4, VvFBT8, and VvFBT9 peaked at veraison. Overexpression of VvFBT9 in 'Kyoho' fruit calli up-regulated the expression of ripening-related genes, indicating that VvFBT9 exerted a positive regulatory effect on fruit ripening. These results provided a theoretical basis for investigating the functions of the VvFBT genes and offered new insights into exploring their roles during fruit ripening.</p>","PeriodicalId":12483,"journal":{"name":"Functional Plant Biology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145849579","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}
引用次数: 0
Mechanistic insights into the role of nano-fertilizers in enhancing maize drought resilience via antioxidant and physiological pathways. 纳米肥料通过抗氧化和生理途径增强玉米抗旱能力的机理
IF 2.7 4区 生物学
Functional Plant Biology Pub Date : 2025-12-23 DOI: 10.1071/FP25188
Ayshah Aysh ALrashidi, Abdelghafar M Abu-Elsaoud, Siham M Al-Balawi, Hanan Khalaf Anazi, Ibtisam A M Alghabban, Taghreed S Alnusaire, Awatif M Abdulmajeed, Mohammed S Aleissa, Fehmi Boufahja, Mona H Soliman
{"title":"Mechanistic insights into the role of nano-fertilizers in enhancing maize drought resilience via antioxidant and physiological pathways.","authors":"Ayshah Aysh ALrashidi, Abdelghafar M Abu-Elsaoud, Siham M Al-Balawi, Hanan Khalaf Anazi, Ibtisam A M Alghabban, Taghreed S Alnusaire, Awatif M Abdulmajeed, Mohammed S Aleissa, Fehmi Boufahja, Mona H Soliman","doi":"10.1071/FP25188","DOIUrl":"10.1071/FP25188","url":null,"abstract":"<p><p>Drought stress poses a critical threat to global maize (Zea mays L.) production, impairing physiological and biochemical functions and significantly reducing crop yield. This study evaluated the potential of foliar-applied nano-fertilizers - zinc (Zn), iron (Fe), and silica (Si) nanoparticles - in mitigating drought-induced damage in maize across two consecutive growing seasons (2023-2024). A factorial experiment was conducted under controlled greenhouse conditions with 12 treatment combinations comprising three drought levels (non-drought, moderate, severe) and four nano-fertilizer regimes (control, Zn, Fe, Si). Comprehensive physiological and biochemical parameters were measured, including photosynthetic pigments, antioxidant enzyme activities, oxidative stress markers, proline, protein content, and gas exchange traits (photosynthesis and transpiration rates). Results showed that drought stress significantly reduced chlorophyll and carotenoid content, impaired photosynthesis, and elevated oxidative damage. However, nano-fertilizer treatments - particularly nano-Fe and nano-Zn - enhanced chlorophyll retention, increased antioxidant enzyme activities and seed yield, and lowered malondialdehyde (MDA), electrolyte leakage (EL), and hydrogen peroxide (H2O2) accumulation. Nano-Si notably improved transpiration and proline accumulation, aiding osmotic adjustment. Among treatments, moderate drought combined with nano-Fe (MDNFe) and Zn (MDNZn) consistently outperformed controls, demonstrating improved pigment stability, enzymatic protection, and physiological performance. Correlation analysis revealed strong positive associations between chlorophyll content and photosynthetic traits (r > 0.98), and between antioxidant activity and stress mitigation indicators. This study provides mechanistic insights into the nano-enabled resilience of maize under drought stress and highlights the synergistic role of micronutrient nanoparticles in enhancing plant antioxidant and osmoprotective responses. The findings advocate for the integration of nano-Zn, nano-Fe, and nano-Si into sustainable drought management practices to promote climate-resilient maize cultivation.</p>","PeriodicalId":12483,"journal":{"name":"Functional Plant Biology","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145603411","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}
引用次数: 0
In silico perspectives on RuBisCo activase and its role in mangrove CO2 sequestration. RuBisCo激活酶及其在红树林CO2固存中的作用。
IF 2.7 4区 生物学
Functional Plant Biology Pub Date : 2025-12-23 DOI: 10.1071/FP25268
Sonali Mazumder, Riya Bhosale, Chinnarajan Ravindran, Lawrance Irudayarajan, Hadse Pandesha Pramath
{"title":"In silico perspectives on RuBisCo activase and its role in mangrove CO2 sequestration.","authors":"Sonali Mazumder, Riya Bhosale, Chinnarajan Ravindran, Lawrance Irudayarajan, Hadse Pandesha Pramath","doi":"10.1071/FP25268","DOIUrl":"10.1071/FP25268","url":null,"abstract":"<p><p>Blue carbon, or carbon fixation, can reduce global CO2 emissions through green ecosystems. The capacity of mangroves to fix atmospheric CO2 is five times higher than tropical or terrestrial land plants. Ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCo) is one of the most important enzymes for improving photosynthetic efficiency, but a range of sugar phosphates can restrict its activity. The AAA+ protein, RuBisCo activase (RCA), releases this inhibitory sugar-phosphate bound in the active site of RuBisCo by ATP hydrolysis. The present study focuses on understanding the mechanism by which RuBisCo activase regulates RuBisCo in mangroves. In terrestrial plants, RCA supports RuBisCo activity under stress; however, its efficiency diminishes under prolonged or extreme conditions, thereby limiting CO2 fixation. Mangroves, adapted to salinity, may harbour more stress-resilient mechanisms that help maintain photosynthesis. In silico analysis also revealed that mangrove RCA may exist in a hexameric form, with both the α- and β-isoforms indicating a level of structural diversification. Here, we describe a comparative study of RCA isoforms between terrestrial plants and mangroves, highlighting their structural and functional variations in response to environmental stress. We also investigated whether RuBisCo and its molecular chaperone, RCA, contribute significantly to CO2 sequestration in mangroves, or if their roles are minimal or even functionally divergent due to the prevalence of alternative carbon metabolic pathways in these stress-resilient environments.</p>","PeriodicalId":12483,"journal":{"name":"Functional Plant Biology","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145677021","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}
引用次数: 0
Identification of BGLC gene family in watermelon and analysis of its expression pattern under abiotic stresses. 西瓜BGLC基因家族的鉴定及其在非生物胁迫下的表达模式分析。
IF 2.7 4区 生物学
Functional Plant Biology Pub Date : 2025-12-23 DOI: 10.1071/FP24258
Mingxuan Li, Xiaoyu Wang, Fan Zhang, Weihua Zhang, Jiaxin Song, Chaijing Su, Man Deng, Zeyu Cai, Ying Wu
{"title":"Identification of BGLC gene family in watermelon and analysis of its expression pattern under abiotic stresses.","authors":"Mingxuan Li, Xiaoyu Wang, Fan Zhang, Weihua Zhang, Jiaxin Song, Chaijing Su, Man Deng, Zeyu Cai, Ying Wu","doi":"10.1071/FP24258","DOIUrl":"10.1071/FP24258","url":null,"abstract":"<p><p>β-glucosidase, a key enzyme in plant sugar metabolism, belongs to the glycoside hydrolase family and plays a crucial role in plant defense against abiotic stresses. We conducted a comprehensive genome-wide analysis of the watermelon BGLC gene family, identifying eight ClBGLC genes. The molecular weights of these ClBGLCs ranged from 58.17 to 79.53 kDa, and were classified into three subfamilies. Members within the same subfamily exhibited similar gene structures, with these genes being located across five watermelon chromosomes. Collinearity analysis revealed five homologous gene pairs between watermelon and melon, and two with Arabidopsis. Promoter analysis identified several cis-regulatory elements related to plant growth, hormone responses, and abiotic stress responses in the ClBGLC genes. Expression pattern analysis demonstrated that ClBGLCs were expressed across various watermelon tissues. Furthermore, ClBGLC expression was upregulated under salt, drought, and low-temperature stresses, although expression levels varied markedly among genes in response to different stressors. These findings suggest that BGLC genes play a pivotal regulatory role in plant abiotic stress responses. This study provides a foundational basis for future research on the BGLC gene family's functional roles and response mechanisms under abiotic stress conditions.</p>","PeriodicalId":12483,"journal":{"name":"Functional Plant Biology","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145660725","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}
引用次数: 0
Myoinositol enhances heat tolerance in Chenopodium quinoa through integrated physiological, biochemical, and molecular responses. 肌醇通过综合生理、生化和分子反应增强藜麦的耐热性。
IF 2.7 4区 生物学
Functional Plant Biology Pub Date : 2025-12-23 DOI: 10.1071/FP25281
Abeer Ayed Alshammari, Abdelghafar M Abu-Elsaoud, Wasimah AlShammari, Awatif M Abdulmajeed, Ayshah Aysh ALrashidi, Suliman M S Alghanem, Hassan Rudayni, Mohammed Al-Zharani, Taghreed S Alnusaire, Mona H Soliman
{"title":"Myoinositol enhances heat tolerance in Chenopodium quinoa through integrated physiological, biochemical, and molecular responses.","authors":"Abeer Ayed Alshammari, Abdelghafar M Abu-Elsaoud, Wasimah AlShammari, Awatif M Abdulmajeed, Ayshah Aysh ALrashidi, Suliman M S Alghanem, Hassan Rudayni, Mohammed Al-Zharani, Taghreed S Alnusaire, Mona H Soliman","doi":"10.1071/FP25281","DOIUrl":"10.1071/FP25281","url":null,"abstract":"<p><p>As global temperatures continue to rise, heat stress poses a serious threat to crop productivity and food security. Developing effective strategies to enhance thermotolerance is therefore critical. This study investigates the physiological, biochemical, and molecular mechanisms underlying the protective role of myo-inositol (MyIs) in enhancing heat tolerance in Chenopodium quinoa exposed to varying thermal stress conditions (30°C, 35°C, and 40°C), with or without MyIs application. Heat stress markedly reduced biomass accumulation, relative water content (RWC), photosynthetic efficiency, and membrane stability, while increasing oxidative damage, as evidenced by elevated malondialdehyde (MDA), hydrogen peroxide (H2O2), superoxide radicals (O2•-), and electrolyte leakage (EL). MyIs significantly mitigated these adverse effects by enhancing shoot and root growth, maintaining higher RWC and photosynthetic performance, and reducing oxidative stress markers. Biochemical profiling revealed restoration of total soluble sugars, protein, and free amino acids, alongside elevated glycine betaine (GB) and abscisic acid (ABA), contributing to improved osmotic adjustment and stress signaling. Gene expression analysis showed upregulation of key heat-responsive genes (sHSP18.1, HSP20, HSP70, HSP83, and NSY), indicating a transcriptional basis for MyIs-induced heat tolerance. Collectively, these findings demonstrate that MyIs functions as a potent bio-regulator, conferring thermoprotection through integrated physiological and molecular responses, and offers promising potential for improving heat resilience in crops.</p>","PeriodicalId":12483,"journal":{"name":"Functional Plant Biology","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145603417","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}
引用次数: 0
Insights into morphological, anatomical, and molecular traits for superior fiber yield and quality in dark jute. 暗黄麻优良纤维产量和品质的形态、解剖和分子特征研究。
IF 2.7 4区 生物学
Functional Plant Biology Pub Date : 2025-12-23 DOI: 10.1071/FP24232
Sourav Hazari, Sri Sai Subramanyam Dash, Bikramjeet Ghose, Arpita Das, Sabyasachi Mitra, Subhojit Datta, Anita Roy
{"title":"Insights into morphological, anatomical, and molecular traits for superior fiber yield and quality in dark jute.","authors":"Sourav Hazari, Sri Sai Subramanyam Dash, Bikramjeet Ghose, Arpita Das, Sabyasachi Mitra, Subhojit Datta, Anita Roy","doi":"10.1071/FP24232","DOIUrl":"10.1071/FP24232","url":null,"abstract":"<p><p>The lignocellulosic fibers obtained from dark jute are of superior strength, but their coarseness often limits their industrial value, and fiber quality estimation processes further complicate plant selection. Therefore, the current investigation was undertaken to identify some high-yielding and fine-fiber-producing dark jute cultivars among a diverse panel based on morphological and anatomical characteristics. Furthermore, the role of lignin and some genes associated with its biosynthesis pathway, which influence fiber quality attributes, were investigated. The pooled analysis of variance over 2 years demonstrated significant variations among the genotypes across the evaluated traits. The genetic parameters, principal component analysis, and correlation studies signified that the assessment of mid-diameter alongside plant height and basal diameter could enhance the selection efficiency for high-fiber-yielding cultivars. Among the bark anatomical traits, the area of the fiber wedge, lumen area, and number of fiber cells per bundle demonstrated the best estimates of fiber yield and quality. The lignin content (%) and the activities of the phenylalanine ammonia-lyase (PAL) and cinnamyl alcohol dehydrogenase (CAD) enzymes revealed significant differences among the genotypes under evaluation, with a positive association between them for fiber strength and fineness. The upregulated activity of the genes PAL, CAD, and 4-coumarate-CoA ligase (4CL) in the genotype BCCO 105 than in its fine fiber-producing counterpart (OIN 95) depicted a critical role of these enzymes leading to disparity in fiber qualities. The high-fiber yielders (BCCO 105, OIN 123) and fine-fiber producing genotypes (OIN 95, OIN 128, BCCO 115, BCCO 120) detected in the present study will not only enrich the breeding materials for future fiber quality enhancements but also fulfill the quest for a superior fiber producing dark jute cultivar that can be utilised in the industrial sector efficiently.</p>","PeriodicalId":12483,"journal":{"name":"Functional Plant Biology","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145653770","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}
引用次数: 0
The architecture of submergence escape in two contrasting accessions of the stoloniferous grass Paspalum denticulatum. 匍匐茎禾草雀稗两种不同种质的淹水逃逸结构。
IF 2.7 4区 生物学
Functional Plant Biology Pub Date : 2025-12-23 DOI: 10.1071/FP25196
David Arturo Pinilla Olarte, Federico Mollard, Gustavo Striker, Gabriel Hugo Rua
{"title":"The architecture of submergence escape in two contrasting accessions of the stoloniferous grass Paspalum denticulatum.","authors":"David Arturo Pinilla Olarte, Federico Mollard, Gustavo Striker, Gabriel Hugo Rua","doi":"10.1071/FP25196","DOIUrl":"10.1071/FP25196","url":null,"abstract":"<p><p>Floodplains worldwide face an increasing risk of inundation due to climate change, underscoring the need to identify plant species capable of withstanding flooding. Paspalum denticulatum Trin. is a wetland stoloniferous grass emerging as suitable for cultivation in humid recreational areas or for water erosion control. This study evaluated the morphological responses to varying flooding intensities (waterlogging, partial submergence, and complete submergence) in two P. denticulatum accessions with contrasting growth habits, focusing on plant architecture. The upright accession from Paraguay, with a tall growth habit, showed greater internode length, longer second-order stolons, longer leaf sheath length, and prolonged stolon growth under flooding than at field capacity. Remarkably, the creeping accession from Argentina with a dwarf, prostrate habit, instead of deploying a quiescent state under partial or complete submergence, exhibited escape responses that mainly consisted of steeper stolon growth angles than in drained plants. Unexpectedly, creeping aerial relative growth rate (RGR) declined sharply during water drawdown, indicating an impaired recovery capacity. In conclusion, the upright accession demonstrated a superior capacity to adjust to fluctuating water levels and recover post-flooding, traits that are particularly advantageous for use in flood-prone recreational environments.</p>","PeriodicalId":12483,"journal":{"name":"Functional Plant Biology","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145603422","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}
引用次数: 0
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