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Potassium Deficiency and Hormone Signalling in Plants. 植物缺钾与激素信号传导。
IF 6.3 1区 生物学
Plant, Cell & Environment Pub Date : 2025-09-18 DOI: 10.1111/pce.70165
Shefali Mishra, Diksha Bisht, Anna Amtmann, Ashish K Srivastava, Girdhar K Pandey
{"title":"Potassium Deficiency and Hormone Signalling in Plants.","authors":"Shefali Mishra, Diksha Bisht, Anna Amtmann, Ashish K Srivastava, Girdhar K Pandey","doi":"10.1111/pce.70165","DOIUrl":"https://doi.org/10.1111/pce.70165","url":null,"abstract":"<p><p>Potassium (K or K⁺) is a vital macronutrient that influences numerous physiological processes related to plant physiology and development. Recently, there is a growing focus on enhancing K<sup>+</sup>-use efficiency (KUE) to ensure optimal plant growth, especially in K<sup>+</sup> deficient soils. Most approaches are centred on targeting genes associated with K<sup>+</sup> sensing, signalling and other pathways related to plant hormones. However, despite progress, the success stories for generating high KUE crops are still limited. In view of this, the present review highlights the role of hormonal signalling in regulating K<sup>+</sup> deficiency-induced responses in plants. We integrate shreds of evidence of how these K<sup>+</sup>-hormone signalling crosstalk modulate root-system architecture, K⁺ uptake and stress resilience. Furthermore, a meta-analysis-based assessment of different hormones highlighted the central role of jasmonic acid and abscisic acid in mediating K⁺ deficiency-induced changes at the transcriptional level. The present review offers novel insights into K<sup>+</sup>-hormone crosstalk that can be used as a framework for advancing KUE research and addressing challenges towards global food security.</p>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.3,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145079071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Decoding Plant Adaptation Strategies: Insights From Latitudinal Patterns of Leaf Phosphorus Allocation. 解码植物适应策略:来自叶片磷分配的纬度格局的见解。
IF 6.3 1区 生物学
Plant, Cell & Environment Pub Date : 2025-09-18 DOI: 10.1111/pce.70186
Zhiyong Zhang, Zhongjie Shi, Bing Ye
{"title":"Decoding Plant Adaptation Strategies: Insights From Latitudinal Patterns of Leaf Phosphorus Allocation.","authors":"Zhiyong Zhang, Zhongjie Shi, Bing Ye","doi":"10.1111/pce.70186","DOIUrl":"https://doi.org/10.1111/pce.70186","url":null,"abstract":"","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.3,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145079084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
CHH Hypomethylation in Promoters of Oxidoreductase Genes May Contribute to Salt-Alkali Tolerance in Alfalfa (Medicago sativa L.). 氧化还原酶基因启动子的CHH低甲基化可能与苜蓿耐盐碱有关。
IF 6.3 1区 生物学
Plant, Cell & Environment Pub Date : 2025-09-17 DOI: 10.1111/pce.70192
Rong Gao, Fenqi Chen, Lijuan Chen, Huiling Ma
{"title":"CHH Hypomethylation in Promoters of Oxidoreductase Genes May Contribute to Salt-Alkali Tolerance in Alfalfa (Medicago sativa L.).","authors":"Rong Gao, Fenqi Chen, Lijuan Chen, Huiling Ma","doi":"10.1111/pce.70192","DOIUrl":"https://doi.org/10.1111/pce.70192","url":null,"abstract":"<p><p>Salt-alkali stress severely impairs the quality and productivity of alfalfa (Medicago sativa), yet the role of epigenetic regulation remains unclear. To study the role of DNA methylation in salt-alkali tolerance, we conducted integrated whole-genome methylome and transcriptome analyses using two alfalfa cultivars with contrasting tolerance. Results showed that global methylation levels were only mildly affected by salt-alkali treatment, while a substantial number of differentially methylated regions emerged in the CHH context, particularly in promoter regions. Notably, the salt-alkali tolerant cultivar exhibited consistently lower CHH methylation in promoter regions than the sensitive cultivar, under both control and salt-alkali stress. Enrichment analysis showed that genes overlapping CHH-DMRs were associated with oxidoreductase activity. Five representative candidate genes-NCED, LOX2, LOX4, CuAO1 and CuAO2-were selected for validation. qRT-PCR and McrBC-PCR assays demonstrated that reduced promoter methylation was closely linked to stress-induced transcriptional activation. To test whether reduced DNA methylation contributes to tolerance, alfalfa seedlings were treated with 5-azacytidine, which enhanced antioxidant capacity under salt-alkali stress and supported a role for DNA demethylation in adaptation. Overall, this study highlights the importance of epigenetic regulation in forage adaptation to stress and provides a theoretical basis for future functional studies and molecular breeding.</p>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.3,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145079122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Incident Far-Red Photons Drive Leaf Photosynthesis Less Efficiently Than PAR Light, but Are More Effective in Promoting Growth. 入射远红色光子对叶片光合作用的驱动效率低于PAR光,但对促进生长更有效。
IF 6.3 1区 生物学
Plant, Cell & Environment Pub Date : 2025-09-16 DOI: 10.1111/pce.70193
Wenqing Jin, Elias Kaiser, Yingyue Peng, Yawen Gu, Ep Heuvelink, Leo F M Marcelis
{"title":"Incident Far-Red Photons Drive Leaf Photosynthesis Less Efficiently Than PAR Light, but Are More Effective in Promoting Growth.","authors":"Wenqing Jin, Elias Kaiser, Yingyue Peng, Yawen Gu, Ep Heuvelink, Leo F M Marcelis","doi":"10.1111/pce.70193","DOIUrl":"https://doi.org/10.1111/pce.70193","url":null,"abstract":"<p><p>Recently, far-red light (FR) in the range 700-750 nm has been reported to have similar photosynthetic efficiency as photosynthetically active radiation (PAR, 400-700 nm), when supplied in combination with PAR. We aimed to investigate if adding FR to PAR is equally efficient in promoting photosynthesis as adding PAR, and if long-term acclimation to FR would change the short-term response to FR. Lettuce plants were grown in a climate chamber at two levels of PAR (200 and 400 μmol m<sup>-2</sup> s<sup>-1</sup>, red/blue light), and at each PAR level there were also treatments with 25% of PAR or FR added. In all six treatments, response curves of leaf net photosynthesis rate (P<sub>n</sub>) to different intensities of PAR or PAR + FR were determined. Adding FR to PAR increased P<sub>n</sub>, but this was only 39%-64% of the increase seen under additional PAR, due to lower absorption of FR than PAR. Absorbed PAR and FR photons had similar photosynthetic efficiency. Leaves grown under FR showed acclimatory responses, such as reduced photosynthetic capacity and pigmentation, but the instantaneous photosynthesis response to FR was unaffected. FR had strong positive effects on growth: Partly substituting PAR by FR increased the radiation use efficiency of growth even when expressed per unit of absorbed radiation.</p>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.3,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145074275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Genotype and Phosphorus Availability Shape Chickpea Symbiotic Efficiency and Rhizosphere Microbiome Composition, Driving Contrasting Agro-Physiological Responses. 基因型和磷有效性决定鹰嘴豆共生效率和根际微生物组成,驱动不同农业生理反应。
IF 6.3 1区 生物学
Plant, Cell & Environment Pub Date : 2025-09-16 DOI: 10.1111/pce.70181
Rym Saidi, Mohamed Idbella, Pape Alioune Ndiaye, Ammar Ibnyasser, Chafika Houasli, Zineb Rchiad, Issam Miftah Kadmiri, Khalid Daoui, Adnane Bargaz
{"title":"Genotype and Phosphorus Availability Shape Chickpea Symbiotic Efficiency and Rhizosphere Microbiome Composition, Driving Contrasting Agro-Physiological Responses.","authors":"Rym Saidi, Mohamed Idbella, Pape Alioune Ndiaye, Ammar Ibnyasser, Chafika Houasli, Zineb Rchiad, Issam Miftah Kadmiri, Khalid Daoui, Adnane Bargaz","doi":"10.1111/pce.70181","DOIUrl":"https://doi.org/10.1111/pce.70181","url":null,"abstract":"<p><p>Co-inoculation of grain legumes, including chickpea, with nitrogen-fixing and phosphate-solubilising bacteria (PSB) improves symbiotic efficiency and plant productivity under low-P availability. However, the extent of chickpea's responsiveness to inoculation and their reliance on symbiotic nitrogen (N) fixation remains intricately influenced by plant genotypic diversity and the associated rhizosphere microbiome under different P levels. This study evaluated the agro-physiological, symbiotic and microbial traits of two Moroccan winter chickpea (Cicer arietinum) varieties (Arifi and Bochra) under low-P conditions represented by three rock-P levels (0, 25, 50 and 75 kg P₂O₅ ha<sup>-1</sup>) and co-inoculation with Mesorhizobium ciceri and Rhanella aceri (PSB). Results showed that inoculation at rock-P levels ≥ 50 kg P₂O₅ ha<sup>-1</sup>, significantly improved symbiotic traits, plant biomass and nutrient uptake in both varieties, with Bochra exhibiting superior performance. At 75 kg P₂O₅ ha<sup>-1</sup> of rock-P, Bochra exhibited a strong correlation between root morphological traits and P-related rhizosphere traits. Results further highlighted Bochra's robust response to inoculation under 75 kg P₂O₅ ha<sup>-1</sup> rock-P, driven by its ability to shape the rhizobacterial community composition, where Mesorhizobium dominated and significantly influenced plant and rhizosphere traits. More notably in Bochra than Arifi, rhizobacterial species richness and community composition correlated strongly with nodule traits, plant traits and rhizosphere P-related parameters. These findings elucidate the significant contribution of the rhizosphere bacterial community to the symbiotic performance of Mesorhizobium-inoculated chickpea, which remains both genotype- and P-dependent.</p>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.3,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145074230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Heat Shock Transcription Factors as Integrative Hubs for Plant Stress Adaptation: Decoding Regulatory Networks Toward Climate-Resilient Crop Design. 热休克转录因子作为植物逆境适应的综合枢纽:解码气候适应型作物设计的调控网络。
IF 6.3 1区 生物学
Plant, Cell & Environment Pub Date : 2025-09-15 DOI: 10.1111/pce.70185
Yunxuan Feng, Pengguo Xia
{"title":"Heat Shock Transcription Factors as Integrative Hubs for Plant Stress Adaptation: Decoding Regulatory Networks Toward Climate-Resilient Crop Design.","authors":"Yunxuan Feng, Pengguo Xia","doi":"10.1111/pce.70185","DOIUrl":"https://doi.org/10.1111/pce.70185","url":null,"abstract":"<p><p>As sessile organisms, plants deploy heat shock transcription factors (HSFs) as key coordinators within a broader transcriptional network that includes bZIPs, MYBs, NACs, and DREBs to combat abiotic/biotic stresses under climate change. Beyond activating heat shock proteins and antioxidant systems, HSFs maintain redox homoeostasis by orchestrating hormone pathways and ROS-hormone signalling crosstalk, and enhance cross-kingdom defence through secondary metabolite synthesis, thus extending their function from thermotolerance to drought, salinity, and pathogen defence. However, current research is limited by overreliance on model plants, unclear HSF dynamics under coupled stresses, and unresolved epigenetic regulation of stress memory. Furthermore, CRISPR editing faces challenges with multigene coordination and field validation. This review integrates HSF structural evolution and network mechanisms, proposing innovative strategies: cross-species genomics, computational modelling of HSF networks, CRISPR-based synthetic stress circuits, and targeted epigenetic modifications for transgenerational resilience. These approaches aim to elucidate HSF-mediated epigenetic stress memory, bridging molecular research with stress-resilient crop breeding to provide a blueprint for next-generation climate-smart crops and sustainable solutions for global food security.</p>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.3,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145063025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Glycerophosphodiester Phosphodiesterase ZmGPX-PDE1 Regulates Phosphorus Remobilisation and JA-Mediated Anther Development in Maize. 甘油三酯磷酸二酯酶ZmGPX-PDE1调控玉米磷再激活和ja介导的花药发育
IF 6.3 1区 生物学
Plant, Cell & Environment Pub Date : 2025-09-15 DOI: 10.1111/pce.70189
Yan Sun, Chenxi Fu, Zikai Xu, Jinting Zhang, Yang Han, Siji Wang, Manli Zhao, Jianbo Shen, Lingyun Cheng
{"title":"Glycerophosphodiester Phosphodiesterase ZmGPX-PDE1 Regulates Phosphorus Remobilisation and JA-Mediated Anther Development in Maize.","authors":"Yan Sun, Chenxi Fu, Zikai Xu, Jinting Zhang, Yang Han, Siji Wang, Manli Zhao, Jianbo Shen, Lingyun Cheng","doi":"10.1111/pce.70189","DOIUrl":"https://doi.org/10.1111/pce.70189","url":null,"abstract":"<p><p>Phosphorus (P) is essential for plant growth, yet its limited availability necessitates efficient utilisation, especially during reproductive stages where P remobilisation mechanisms are not fully understood. This study investigates the role of the maize gene ZmGPX-PDE1, which encodes a glycerophosphodiester phosphodiesterase involved in phospholipid metabolism by hydrolysing glycerophosphodiesters to glycerol-3-phosphate, regulates P remobilisation and reproductive development. Using loss-of-function mutants and overexpression lines, we demonstrated that ZmGPX-PDE1 facilitates the redistribution of P from vegetative tissues to reproductive organs, thereby enhancing biomass accumulation, grain yield, and pollen viability under low-P conditions. Furthermore, our results reveal that ZmGPX-PDE1 influences jasmonic acid (JA) signalling, a critical pathway for anther dehiscence and male fertility. Loss of ZmGPX-PDE1 function results in impaired P remobilisation, reduced anther P content, and disrupted JA signalling, leading to decreased pollen quality and yield. These findings provide new insights into the molecular mechanisms underlying P homeostasis in maize and highlight ZmGPX-PDE1 as a promising target for developing P-efficient cultivars suitable for sustainable agriculture.</p>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.3,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145068728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Tree Saplings Readily Take Up NO2 During Foliar 15NO2 Fumigation. 树苗在叶片15NO2熏蒸过程中容易吸收NO2。
IF 6.3 1区 生物学
Plant, Cell & Environment Pub Date : 2025-09-15 DOI: 10.1111/pce.70184
Meng Yao, Ronghua Kang, Erik A Hobbie, Qing-Wei Wang, Lei Duan, Jan Mulder, Yuqi Liu, Jin Li, Jingran Ma, Chao Wang, Yunting Fang
{"title":"Tree Saplings Readily Take Up NO<sub>2</sub> During Foliar <sup>15</sup>NO<sub>2</sub> Fumigation.","authors":"Meng Yao, Ronghua Kang, Erik A Hobbie, Qing-Wei Wang, Lei Duan, Jan Mulder, Yuqi Liu, Jin Li, Jingran Ma, Chao Wang, Yunting Fang","doi":"10.1111/pce.70184","DOIUrl":"https://doi.org/10.1111/pce.70184","url":null,"abstract":"<p><p>Forest canopy nitrogen dioxide (NO<sub>2</sub>) uptake is recognised as a potentially important N input. However, how N addition influences foliar NO<sub>2</sub> uptake and allocation of assimilated NO<sub>2</sub> in different tree organs has been poorly quantified. We conducted a <sup>15</sup>NO<sub>2</sub> fumigation experiment using 3-year-old saplings of Fraxinus mandshurica, Pinus koraiensis, Quercus mongolica (Q. mongolica) and Larix gmelinii (L. gmelinii) and measured assimilation into different tree organs. Total <sup>15</sup>N recovery ranged from 9% to 74% in the light and varied with species. With soil N addition, <sup>15</sup>N recovery increased in Q. mongolica but decreased in L. gmelinii, which we attributed to opposite responses of stomatal density and leaf area between these two species to soil N addition. These indicate that foliar NO<sub>2</sub> uptake amounts are likely associated with tree N demand. Leaves were the dominant sink for N derived from <sup>15</sup>NO<sub>2</sub> and accounted for 60% to 97% of total recovery, suggesting that most foliar-assimilated NO<sub>2</sub> is initially stored in leaves. Our study indicates that tree canopies could assimilate 0.51 ± 0.07 kg N ha<sup>-1</sup> y<sup>-1</sup> atmospheric NO<sub>2</sub> in temperate forests, which provides references for model large-scale modelled estimates of canopy NO<sub>2</sub> uptake. These data improve the understanding of N cycling between atmosphere and forest ecosystems.</p>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.3,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145068694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Overexpression of Tempranillo-Like Proteins Promotes Dormancy Release in Poplar. 过表达tempranillo样蛋白促进杨树休眠释放。
IF 6.3 1区 生物学
Plant, Cell & Environment Pub Date : 2025-09-15 DOI: 10.1111/pce.70182
Daniela Gómez-Soto, Paolo Maria Triozzi, Daniel Conde, Cristina Del Barrio, Isabel Allona, Mariano Perales
{"title":"Overexpression of Tempranillo-Like Proteins Promotes Dormancy Release in Poplar.","authors":"Daniela Gómez-Soto, Paolo Maria Triozzi, Daniel Conde, Cristina Del Barrio, Isabel Allona, Mariano Perales","doi":"10.1111/pce.70182","DOIUrl":"https://doi.org/10.1111/pce.70182","url":null,"abstract":"<p><p>Trees in temperate and boreal latitudes synchronize their growth-dormancy cycles with seasonal environmental variations to ensure their survival over the years. Dormancy control is crucial during winter when plants cease growth and establish buds to protect their apical meristems from cold temperatures. To overcome endormancy, initiate bud break, and restore growth, plants must be exposed to a specific duration of chilling, referred to as the chilling requirement, which is species- and ecotype-dependent. In this study, we study the novel roles of two TEMPRANILLO-like genes (TEML1 and TEML2) in the annual cycle of poplar. We demonstrated that Populus TEML genes are regulated by photoperiod, cold temperatures and the circadian clock, and they are induced in buds by short days and chilling treatment. Notably, their function diverges from the role of its Arabidopsis ortholog AtTEM, which regulates FLOWERING LOCUS T (FT) transcription and the photoperiodic flowering transcription. Transcriptomic analysis of apical buds during short days and chilling treatment revealed that the overexpression of TEML1 and TEML2 accelerate dormancy release by modulating the expression of dormancy regulators and growth-promoting genes.</p>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.3,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145068734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Positive Diversity Effect on Woody Biomass Production by Promoting Cell Number and Cell Wall Thickness. 促进细胞数量和细胞壁厚度对木质生物质产量的正向多样性效应。
IF 6.3 1区 生物学
Plant, Cell & Environment Pub Date : 2025-09-14 DOI: 10.1111/pce.70188
Hong-Tu Zhang, Tongyan Liu, Shan Li, Bernhard Schmid, Helge Bruelheide, Keping Ma, Zhiyao Tang
{"title":"Positive Diversity Effect on Woody Biomass Production by Promoting Cell Number and Cell Wall Thickness.","authors":"Hong-Tu Zhang, Tongyan Liu, Shan Li, Bernhard Schmid, Helge Bruelheide, Keping Ma, Zhiyao Tang","doi":"10.1111/pce.70188","DOIUrl":"https://doi.org/10.1111/pce.70188","url":null,"abstract":"<p><p>While biodiversity has been widely shown to promote tree growth in forests, the effects of diversity at the cellular level remain unclear. This hinders a deeper understanding of how diversity influences wood production. Here, we investigated the influence of neighbourhood composition on wood formation processes at the cellular level. We found that neighbourhood diversity significantly increased both the number and wall thickness of xylem fibre cells generated during the growing season, resulting in enhanced biomass growth. Compared with monocultures, woody biomass production at the highest neighbourhood species richness (NSR = 4) increased by an average of 19%-29% across the studied species. Neighbourhood diversity also led to a shift in cambium phenology. An earlier start of cambium activity and an extended duration of wall thickening were observed under higher tree species richness. Furthermore, neighbourhood competition decreased vessel area, which was closely associated with cell wall thickness. Our study offers a microscopic perspective on the effects of diversity and competition on wood formation and woody biomass production. We highlight that the contribution of diversity to woody biomass accumulation may be underestimated when variation in cell wall thickness is ignored.</p>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.3,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145062914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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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