Plant Biology最新文献

{"title":"Marginal response of non-structural carbohydrates and increased biomass in a dominant shrub (Dasiphora fruticosa) to water table decline in a minerotrophic peatland.","authors":"L M Ge, T Li, Z F Zhai, P He, R T Zhao, Z J Bu, S Z Wang, C H Peng, H X Song, M Wang","doi":"10.1111/plb.13762","DOIUrl":"https://doi.org/10.1111/plb.13762","url":null,"abstract":"<p><p>Assessing how dominant peatland species, such as Dasiphora fruticosa, adapt to water table decline is crucial to advance understanding of their growth and survival strategies. Currently, most studies have primarily focused on their growth and biomass, with limited knowledge on the response of non-structural carbohydrates (NSCs) and physiological adaptations of these woody plants under long-term drainage. This study assessed the response of photosynthesis and transpiration rates, biomass, and NSC concentrations (including soluble sugars and starch) in the leaves, stems, and roots of D. fruticosa to long-term drainage in a minerotrophic peatland. The aim was to elucidate the plant response and adaptation mechanisms to water table decline. Dasiphora fruticosa effectively regulated carbon (C) demand and supply by significantly enhancing photosynthesis, transpiration, and biomass accumulation, thereby maintaining stable C storage as the water table declined. There was a notable reduction in soluble sugar concentration in leaves with increasing water table decline, while starch concentrations in all three organs remained relatively constant. Although the concentration of soluble sugars in leaves was consistently higher than that in roots and stems, the relative proportion of soluble sugars and starch gradually decreased in leaves and increased in roots and stems with water table decline. Our findings reveal that D. fruticosa reduces NSC concentrations in leaves while increasing biomass to adapt to water table decline. This acclimation might significantly impact C dynamics in peatlands. Understanding these mechanisms is vital for predicting the dynamics of C sequestration and emission in peatland ecosystems under changing environmental conditions.</p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142913400","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":"Chlorophyll and topographic patterns demonstrate stress conditions drive the brightness of autumn leaf colour","authors":"D. Koide,&nbsp;M. Kobayashi","doi":"10.1111/plb.13755","DOIUrl":"10.1111/plb.13755","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":"27 2","pages":"279-286"},"PeriodicalIF":4.2,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/plb.13755","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142884911","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}

{"title":"Tolerance to insect herbivory increases with progressing plant development","authors":"R. Gols","doi":"10.1111/plb.13757","DOIUrl":"10.1111/plb.13757","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":"27 2","pages":"287-296"},"PeriodicalIF":4.2,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/plb.13757","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142884917","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}

{"title":"Linking sap flow and tree water deficit in an unmanaged, mixed beech forest during the summer drought 2022.","authors":"L S Donfack, M Mund, F Koebsch, P Schall, M G Heidenreich, D Seidel, C Ammer","doi":"10.1111/plb.13754","DOIUrl":"https://doi.org/10.1111/plb.13754","url":null,"abstract":"<p><p>Temperate mixed forests are currently experiencing severe drought conditions and face increased risk of degradation. However, it remains unclear how critical tree physiological functions such as sap flow density (SFD) and tree water deficit (TWD, defined as reversible stem shrinkage when water is depleted), respond to extreme environmental conditions and how they interact under dry conditions. We monitored SFD and TWD of three co-occurring European tree species (Fagus sylvatica, Fraxinus excelsior and Acer pseudoplatanus) in dry conditions, using high temporal resolution sap flow, dendrometer, and environmental measurements. Species-specific SFD responses to soil drying did not differ significantly, while TWD was significantly higher in F. excelsior. Inter-specific differences in wood anatomy and water use strategies did not consistently explain these responses. TWD and SFD responded both to soil moisture content (SWC) during wet (SWC ≥ 0.2) and dry (SWC < 0.2) phases, with SFD responding more strongly. There was a significant correlation for TWD and vapour pressure deficit (VPD) only in the wet phase, and for SFD and VPD only in the dry phase. During the dry phase, the incoming PPFD significantly correlated with SFD in all species, and with TWD only in F. sylvatica and F. excelsior. TWD negatively responded to SFD, showing hysteresis effects from which a decreasing sigmoidal phase along the soil drying gradient was observed. The nonlinear correlations between TWD and SFD may result from a time lag between the two variables, and their different sensitivities to SWC and VPD under different drought intensities. We conclude that, under drought stress, TWD cannot be used as a proxy for SFD or vice versa.</p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142884915","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":"Interactive effects of nitrogen deposition and climate change on a globally rare forest geophyte","authors":"B. Ohse,&nbsp;D. Jansen,&nbsp;W. Härdtle,&nbsp;A. Fichtner","doi":"10.1111/plb.13758","DOIUrl":"10.1111/plb.13758","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":"27 2","pages":"297-309"},"PeriodicalIF":4.2,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/plb.13758","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142884913","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}

{"title":"Integrative evidence on the hybridization between Cenostigma microphyllum and C. pyramidale (Leguminosae) in the Caatinga dry forest.","authors":"P Aecyo, L Costa, U P Jacobina, W Harand, I R Leal, G Souza, A Pedrosa-Harand","doi":"10.1111/plb.13753","DOIUrl":"https://doi.org/10.1111/plb.13753","url":null,"abstract":"<p><p>Interspecific hybridization plays an important role in plant evolution, contributing to taxonomic uncertainty through intermediate phenotypes or the emergence of novel traits. The characterization of hybridization is important to elucidate systematic relationships and its role in the diversification of lineages. The genus Cenostigma comprises neotropical legume trees with phylogenetic inconsistencies, and individuals showing intermediate morphology between sympatric species, suggesting natural hybridization. We tested this hypothesis by investigating two endemic species from the Caatinga dry forest in northeast Brazil (C. microphyllum and C. pyramidale) using molecular markers (nuclear and plastid SSRs), geometric morphometrics, non-targeted metabolomics, and ecological analyses. We detected a high plastidial genetic structure among populations, not related to species boundaries but to their geographic distribution. The geometric morphometric analysis showed a clustering of pure individuals of both species with hybrids in an intermediate position, demonstrating the hybridization of these species in Caatinga. Nuclear DNA and metabolite diversity supported the separation of the two species into three clusters, with a subdivision of C. pyramidale in populations from the north (Pernambuco) and south (Bahia). Metabolomics revealed a fourth group formed mostly by hybrids. Later generation hybrids were detected as intermediate morphological forms, and gene flow was assumed as asymmetric among species and populations, being higher from C. pyramidale to C. microphyllum in populations from Bahia State. Ecological data indicated niche overlap. Hence, interspecific gene flow occurs among Cenostigma tree species, contributing to the evolution of the dry forest. Given the karyotypic and genomic similarity among species, as well as molecular and ecological evidence, we infer that the hybrids are fertile, allowing introgression and contributing to systematic complexity in Cenostigma. Hybridization did not significantly increase chemodiversity in terms of novel compounds but differentiated hybrids from parental species. In summary, we highlight the importance of multiple evidence, particularly genetic, morphological, and metabolomic traits, in the identification of hybrids and its evolutionary impact in natural environments.</p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142833402","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":"Innovative multi-scale approach to study the phenotypic variation of seedling leaves in four weedy Amaranthus species","authors":"D. Scarpin,&nbsp;G. Este,&nbsp;F. D'Este,&nbsp;F. Boscutti,&nbsp;A. Milani,&nbsp;S. Panozzo,&nbsp;S. Varotto,&nbsp;M. Vuerich,&nbsp;E. Petrussa,&nbsp;E. Braidot","doi":"10.1111/plb.13752","DOIUrl":"10.1111/plb.13752","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":"27 2","pages":"310-322"},"PeriodicalIF":4.2,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/plb.13752","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142805764","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}

{"title":"Detecting hybridization in Chilean species of the genus Baccharis L.","authors":"F. Schneider,&nbsp;F. Hellwig","doi":"10.1111/plb.13751","DOIUrl":"10.1111/plb.13751","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":"27 2","pages":"255-264"},"PeriodicalIF":4.2,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/plb.13751","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142798817","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}

{"title":"Soil health improvements under cover crops are associated with enhanced soil content of cytokinins","authors":"I. Perera,&nbsp;A. Kisiala,&nbsp;K. A. Thompson,&nbsp;R. J. N. Emery","doi":"10.1111/plb.13743","DOIUrl":"10.1111/plb.13743","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":"27 2","pages":"265-278"},"PeriodicalIF":4.2,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/plb.13743","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142789449","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}

{"title":"Genome-wide association study of metabolic traits in the giant duckweed Spirodela polyrhiza","authors":"M. Höfer,&nbsp;M. Schäfer,&nbsp;Y. Wang,&nbsp;S. Wink,&nbsp;S. Xu","doi":"10.1111/plb.13747","DOIUrl":"10.1111/plb.13747","url":null,"abstract":"<p>\u0000 </p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":"27 1","pages":"18-28"},"PeriodicalIF":4.2,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11656286/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142765102","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}