Plant, Cell & Environment最新文献

Metabolism Interaction Between Bacillus cereus SESY and Brassica napus Contributes to Enhance Host Selenium Absorption and Accumulation. 蜡样芽孢杆菌 SESY 与甘蓝型油菜之间的代谢相互作用有助于提高宿主对硒的吸收和积累。

IF 6 1区生物学

Plant, Cell & Environment Pub Date : 2024-11-19 DOI: 10.1111/pce.15278

Huan Zhang, Lianming Liang, Xiaoping Du, Guangyu Shi, Xu Wang, Yanni Tang, Zheng Lei, Yin Wang, Ceng Yi, Chengxiao Hu, Xiaohu Zhao

{"title":"Metabolism Interaction Between Bacillus cereus SESY and Brassica napus Contributes to Enhance Host Selenium Absorption and Accumulation.","authors":"Huan Zhang, Lianming Liang, Xiaoping Du, Guangyu Shi, Xu Wang, Yanni Tang, Zheng Lei, Yin Wang, Ceng Yi, Chengxiao Hu, Xiaohu Zhao","doi":"10.1111/pce.15278","DOIUrl":"https://doi.org/10.1111/pce.15278","url":null,"abstract":"The use of beneficial bacteria to enhance selenium absorption in crops has been widely studied. However, it is unclear how the interaction between bacteria and plants affects selenium absorption in crops. Here, pot experiments and Murashige and Skoog medium (MS) experiments were performed. Transcriptomic analyses were used to reveal the interaction between Bacillus cereus SESY and Brassica napus. The results indicated that B. cereus SESY can significantly increase the biomass and selenium content of B. napus. The genes related to the colonization, IAA synthesis, and l-cysteine synthesis and metabolism of B. cereus SESY were significantly stimulated by B. napus through transcriptional regulation. Further verification results showed that l-cysteine increased selenium content in B. napus roots and shoots by 62.9% and 88.4%, respectively. B. cereus SESY and l-cysteine consistently regulated the relative expression level of genes involved in plant hormone, amino acid metabolism, selenium absorption, and Se enzymatic and nonenzymatic metabolic pathway of B. napus. These genes were significantly correlated with selenium content and biomass of B. napus (p < 0.05). Overall, IAA biosynthesis, and l-cysteine biosynthesis and metabolism in B. cereus SESY stimulated by interactions triggered molecular and metabolic responses of B. napus, underpinning host selenium absorption and accumulation.","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142666212","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

Some Like It Hot: Differential Photosynthetic Performance and Recovery of English Walnut Accessions Under Emerging California Heat Waves. 有些人喜欢热：在新出现的加利福尼亚热浪下英国核桃品种的不同光合性能和恢复能力。

IF 6 1区生物学

Plant, Cell & Environment Pub Date : 2024-11-18 DOI: 10.1111/pce.15273

Mina Momayyezi, Troy Williams, Peter Tolentino, Abby Hammermeister, Daniel A Kluepfel, Elisabeth J Forrestel, Andrew J McElrone

{"title":"Some Like It Hot: Differential Photosynthetic Performance and Recovery of English Walnut Accessions Under Emerging California Heat Waves.","authors":"Mina Momayyezi, Troy Williams, Peter Tolentino, Abby Hammermeister, Daniel A Kluepfel, Elisabeth J Forrestel, Andrew J McElrone","doi":"10.1111/pce.15273","DOIUrl":"https://doi.org/10.1111/pce.15273","url":null,"abstract":"Heat waves (HWs) pose a significant threat to California agriculture, with potential adverse effects on crop photosynthetic capacity, quality and yield, all of which contribute to significant economic loss. Lack of heat-resilient cultivars puts perennial crop production under severe threat due to increasing HW frequency, duration and intensity. Currently, available walnut cultivars are highly sensitive to abiotic stress, and germplasm collections provide potential solutions via genotypes native to varied climates. We screened nine English walnut accessions (Juglans regia) for physiological heat stress resilience and recovery in the USDA-ARS National Clonal Germplasm over 2-years, and identified accessions with superior resilience to heat stress. Heat stress impacted photosynthetic capacity in most accessions, as evidenced by reductions in net (An) and maximum (Amax) assimilation rates, quantum efficiency of PSII, and changes in stomatal conductance (gs). However, two accessions exhibited either higher or complete recovery post-irrigation. This aligns with the established practice of using irrigation to mitigate heat stress, as it improved recovery for several accessions, with A3 and A5 demonstrating the most resilience. One of these two superior accessions is native to one of the hottest and driest habitats of all studied accessions. These same accessions exhibited the highest An under non-stressed conditions and at higher temperatures of 35° to 45°C. Higher performance for A3 and A5 under HWs was associated with greater carboxylation rates, electron transport rates, and Amax. All accessions suffered significant declines in photosynthetic performance at 45°C, which were the ambient leaf temperatures approached during record-setting heat waves in California during September 2022.","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646459","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

Genome-Wide Association Study Identifies the Serine/Threonine Kinase ClSIK1 for Low Nitrogen Tolerance in Watermelon Species. 全基因组关联研究发现丝氨酸/苏氨酸激酶 ClSIK1 与西瓜品种的低氮耐受性有关。

IF 6 1区生物学

Plant, Cell & Environment Pub Date : 2024-11-18 DOI: 10.1111/pce.15275

Kejia Zhang, Qinrong Yang, Yongming Bo, Yimei Zhou, Nanqiao Liao, Xiaolong Lyu, Jinghua Yang, Zhongyuan Hu, Mingfang Zhang

{"title":"Genome-Wide Association Study Identifies the Serine/Threonine Kinase ClSIK1 for Low Nitrogen Tolerance in Watermelon Species.","authors":"Kejia Zhang, Qinrong Yang, Yongming Bo, Yimei Zhou, Nanqiao Liao, Xiaolong Lyu, Jinghua Yang, Zhongyuan Hu, Mingfang Zhang","doi":"10.1111/pce.15275","DOIUrl":"https://doi.org/10.1111/pce.15275","url":null,"abstract":"Plants have evolved multiple complex mechanisms enabling them to adapt to low nitrogen (LN) stress via increased nitrogen use efficiency (NUE) as nitrogen deficiency in soil is a major factor limiting plant growth and development. However, the adaptive process and evolutionary roles of LN tolerance-related genes in plants remain largely unknown. In this study, we resequenced 191 watermelon accessions and examined their phenotypic differences related to LN tolerance. A major gene ClSIK1 encoding a serine/threonine protein kinase involved in the response to LN stress was identified on chromosome 11 using genome-wide association study and RNA-Seq analysis. According to a functional analysis, ClSIK1 overexpression can increase the root area, total biomass, NUE and LN tolerance by manipulating multiple nitrogen-metabolized genes. Interestingly, the desirable LN-tolerant haplotype ClSIK1HapC was detected in only one wild relative (Citrullus mucosospermus) and likely gradually lost during watermelon domestication and improvement. This study clarified the regulatory effects of ClSIK1 on NUE and adaptations to LN stress, which also identifying valuable haplotypes-resolved gene variants for molecular design breeding of 'green' watermelon varieties highly tolerant to LN stress.","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646372","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

Short-Photoperiod Induces Floral Induction Involving Carbohydrate Metabolism and Regulation by VcCO3 in Greenhouse Blueberry. 温室蓝莓的短光周期诱导花诱导涉及碳水化合物代谢和 VcCO3 的调节。

IF 6 1区生物学

Plant, Cell & Environment Pub Date : 2024-11-18 DOI: 10.1111/pce.15292

Xin Feng, Xinliang Wu, Huiling Wu, Yang Li, Bingjie Zhou, Ying Jiang, Suilin Zhang, Jiali Wei, Shuchai Su, Zhixia Hou

{"title":"Short-Photoperiod Induces Floral Induction Involving Carbohydrate Metabolism and Regulation by VcCO3 in Greenhouse Blueberry.","authors":"Xin Feng, Xinliang Wu, Huiling Wu, Yang Li, Bingjie Zhou, Ying Jiang, Suilin Zhang, Jiali Wei, Shuchai Su, Zhixia Hou","doi":"10.1111/pce.15292","DOIUrl":"https://doi.org/10.1111/pce.15292","url":null,"abstract":"Blueberry flower buds cultivated in greenhouses develop during both autumn and spring, with floral induction being a critical process for flowering, influenced by environmental factors. This study aimed to clarify the regulatory mechanisms governing floral induction in greenhouse blueberries, focusing on the similarities and differences in flower bud differentiation between the spring and autumn seasons. Understanding these mechanisms is pivotal for enhancing blueberry production. In this study, we analysed the phenotypic characteristics associated with flower bud differentiation and observed that short photoperiods markedly affect the induction process. Transcriptomic analyses revealed distinct major metabolic pathways activated in autumn compared to spring. Seasonal variations in carbohydrate metabolism were also noted, with sucrose hydrolysis being prominent in autumn and sucrose synthesis prevailing in spring. The interplay between circadian rhythms and photosynthesis appeared to facilitate the allocation of sugars for bud development. Subsequent investigations underscored the sensitivity of VcCO3 to variations in photoperiod. Predominantly localised in the nucleus, VcCO3 facilitated floral induction in response to short photoperiods by activating the expression of downstream genes, including VcFT, VcLFY, VcAP3, and VcSOC1. Furthermore, VcCO3 exhibits a close association with the sugar metabolism gene VcSUS, promoting increased sucrose concentrations.","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142666216","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

Soil Microbiota Modulates Root Transcriptome With Divergent Effect on Maize Growth Under Low and High Phosphorus Inputs. 土壤微生物群调节根转录组，对低磷和高磷输入条件下的玉米生长产生不同影响

IF 6 1区生物学

Plant, Cell & Environment Pub Date : 2024-11-18 DOI: 10.1111/pce.15281

Chao Wang, Huanhuan Tai, Yinglong Chen, Zhiwen Zhai, Lin Zhang, Zitian Pu, Maolin Zhang, Chunjian Li, Zhihong Xie

{"title":"Soil Microbiota Modulates Root Transcriptome With Divergent Effect on Maize Growth Under Low and High Phosphorus Inputs.","authors":"Chao Wang, Huanhuan Tai, Yinglong Chen, Zhiwen Zhai, Lin Zhang, Zitian Pu, Maolin Zhang, Chunjian Li, Zhihong Xie","doi":"10.1111/pce.15281","DOIUrl":"https://doi.org/10.1111/pce.15281","url":null,"abstract":"Plant growth can be promoted by beneficial microorganisms, or inhibited by detrimental ones. Although the interaction process between a single microbial species and its host has been extensively studied, the growth and transcriptional response of the host to soil microbiota is poorly understood. We planted maize in natural or sterile soil collected from a long-term experimental site with two different soil phosphate (P) regimes. We examined the composition of microbial communities inhabiting root-associated niches in natural soil. In parallel, we determined the biomass, ionomes, and root transcriptome profiling of maize grown in natural or sterile soil. Soil microbiota could promote or inhibit different P starvation-responsive (PSR) genes, as well as induce several defense-related metabolic processes independently of external P levels. Soil microbiota accompanied by long-term application of P fertilizer induced lower intensity of PSR and defense responses, inhibiting maize growth. Under a low P regime, the PSR and defense responses were induced to a higher extent, promoting P absorption and growth. Our findings suggest a soil P-dependent effect of microbiota on maize growth by integrating PSR and defense responses and provide a more refined understanding of the interaction between root growth and soil microbiota.","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646457","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

Individual Versus Combined Effects of Warming, Elevated CO₂ and Drought on Grassland Water Uptake and Fine Root Traits. 气候变暖、二氧化碳升高和干旱对草地吸水率和细根性状的单独影响与综合影响。

IF 6 1区生物学

Plant, Cell & Environment Pub Date : 2024-11-18 DOI: 10.1111/pce.15274

Maud Tissink, Jesse Radolinski, David Reinthaler, Sarah Venier, Erich M Pötsch, Andreas Schaumberger, Michael Bahn

{"title":"Individual Versus Combined Effects of Warming, Elevated CO2 and Drought on Grassland Water Uptake and Fine Root Traits.","authors":"Maud Tissink, Jesse Radolinski, David Reinthaler, Sarah Venier, Erich M Pötsch, Andreas Schaumberger, Michael Bahn","doi":"10.1111/pce.15274","DOIUrl":"https://doi.org/10.1111/pce.15274","url":null,"abstract":"Increasing warming, atmospheric CO2 and drought are expected to change the water dynamics of terrestrial ecosystems. Yet, limited knowledge exists about how the interactive effects of these factors will affect grassland water uptake, and whether adaptations in fine root production and traits will alter water uptake capacity. In a managed C3 grassland, we tested the individual and combined effects of warming (+3°C), elevated CO2 (eCO2; +300 ppm) and drought on root water uptake (RWU) as well as on fine root production, trait adaptation, and fine root-to-shoot production ratios, and their relationships with RWU capacity. High temperatures, amplified by warming, exacerbated RWU reductions under drought, with negligible water-sparing effects from eCO2. Drought, both under current and future (warming, eCO2) climatic conditions, shifted RWU towards deeper soil layers. Overall, RWU capacity related positively to fine root production and specific root length (SRL), and negatively to mean root diameters. Warming effects on traits (reduced SRL, increased diameter) and the ratio of fine root-to-shoot production (increased) were offset by eCO2. We conclude that under warmer future conditions, irrespective of shifts in water sourcing, it is particularly hot droughts that will lead to increasingly severe restrictions of grassland water dynamics.","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646376","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

A Key R2R3-MYB Transcription Factor Activates Anthocyanin Biosynthesis and Leads to Leaf Reddening in Poplar Mutants. 一种关键的 R2R3-MYB 转录因子可激活花青素的生物合成并导致杨树突变体的叶片变红。

IF 6 1区生物学

Plant, Cell & Environment Pub Date : 2024-11-18 DOI: 10.1111/pce.15276

Weinan Li, Qianqian Li, Jiahang Che, Jie Ren, Aike Wang, Jinhuan Chen

{"title":"A Key R2R3-MYB Transcription Factor Activates Anthocyanin Biosynthesis and Leads to Leaf Reddening in Poplar Mutants.","authors":"Weinan Li, Qianqian Li, Jiahang Che, Jie Ren, Aike Wang, Jinhuan Chen","doi":"10.1111/pce.15276","DOIUrl":"https://doi.org/10.1111/pce.15276","url":null,"abstract":"Colorful woody plants are highly valued for their ornamental qualities, and are commonly used in garden landscape design. We previously cultivated several ornamental poplar varieties from bud mutants of Populus sp. Linn. '2025' (ZL2025), each with different leaf colors. Based on transcriptome data from these varieties with varying anthocyanin pigmentation, we identified and named an R2R3-MYB gene, PdMYB113. The mRNA of PdMYB113 accumulated in the leaves of the red-leaf mutants 'QHY' and 'LHY', but barely expressed in the leaves of 'ZL2025'. The anthocyanin biosynthesis genes were upregulated, resulting in high levels of red anthocyanins (particularly Peonidin-3-O-rutinoside, Cyanidin-3-O-rutinoside, and Cyanidin-3-O-glucoside) in both OE-PdMYB113 tobacco and poplar plants. This upregulation caused a color change in the tissues from green to red or dark purple. Yeast one-hybrid and luciferase assays demonstrated that PdMYB113 activates the expression of anthocyanin biosynthesis genes, including the early anthocyanin biosynthetic gene PdCHS and the late anthocynin biosynthetic gene PdANS. Consequently, PdMYB113 is identified as a key regulator of red coloration in poplar. Additionally, PdMYB113 does not dwarf transgenic plants under normal lighting conditions. This study elucidates the regulatory mechanisms of color change in ZL2025 and highlights a crucial gene for breeding new varieties of woody plants.","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142666204","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

Diurnal Rhythmicity in the Rhizosphere Microbiome-Mechanistic Insights and Significance for Rhizosphere Function. 根瘤菌微生物群的昼夜节律--对根瘤菌功能的机理认识和意义。

IF 6 1区生物学

Plant, Cell & Environment Pub Date : 2024-11-18 DOI: 10.1111/pce.15283

Gary D Bending, Amy Newman, Emma Picot, Ryan M Mushinski, Davey L Jones, Isabelle A Carré

{"title":"Diurnal Rhythmicity in the Rhizosphere Microbiome-Mechanistic Insights and Significance for Rhizosphere Function.","authors":"Gary D Bending, Amy Newman, Emma Picot, Ryan M Mushinski, Davey L Jones, Isabelle A Carré","doi":"10.1111/pce.15283","DOIUrl":"https://doi.org/10.1111/pce.15283","url":null,"abstract":"The rhizosphere is a key interface between plants, microbes and the soil which influences plant health and nutrition and modulates terrestrial biogeochemical cycling. Recent research has shown that the rhizosphere environment is far more dynamic than previously recognised, with evidence emerging for diurnal rhythmicity in rhizosphere chemistry and microbial community composition. This rhythmicity is in part linked to the host plant's circadian rhythm, although some heterotrophic rhizosphere bacteria and fungi may also possess intrinsic rhythmicity. We review the evidence for diurnal rhythmicity in rhizosphere microbial communities and its link to the plant circadian clock. Factors which may drive microbial rhythmicity are discussed, including diurnal change in root exudate flux and composition, rhizosphere physico-chemical properties and plant immunity. Microbial processes which could contribute to community rhythmicity are considered, including self-sustained microbial rhythms, bacterial movement into and out of the rhizosphere, and microbe-microbe interactions. We also consider evidence that changes in microbial composition mediated by the plant circadian clock may affect microbial function and its significance for plant health and broader soil biogeochemical cycling processes. We identify key knowledge gaps and approaches which could help to resolve the spatial and temporal variation and functional significance of rhizosphere microbial rhythmicity. This includes unravelling the factors which determine the oscillation of microbial activity, growth and death, and cross-talk with the host over diurnal time frames. We conclude that diurnal rhythmicity is an inherent characteristic of the rhizosphere and that temporal factors should be considered and reported in rhizosphere studies.","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646368","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

Leaf Transpirational Cooling and Thermal Tolerance Vary Along the Spectrum of Iso-Anisohydric Stomatal Regulation in Sand-Fixing Shrubs. 固沙灌木的叶片转气冷却和耐热性在等水异相气孔调节谱上各不相同

IF 6 1区生物学

Plant, Cell & Environment Pub Date : 2024-11-18 DOI: 10.1111/pce.15279

Jing-Jing Guo, Xue-Wei Gong, Guang-You Hao

{"title":"Leaf Transpirational Cooling and Thermal Tolerance Vary Along the Spectrum of Iso-Anisohydric Stomatal Regulation in Sand-Fixing Shrubs.","authors":"Jing-Jing Guo, Xue-Wei Gong, Guang-You Hao","doi":"10.1111/pce.15279","DOIUrl":"https://doi.org/10.1111/pce.15279","url":null,"abstract":"Transpirational cooling is crucial for plant thermal regulation to avoid overheating; however, during prolonged and/or acute heat stress it often necessitates stomatal closure to reduce the risk of hydraulic failure due to dehydration. The intricate interplay between thermal regulation, water transport and use may govern plant performance in water-limited and simultaneously heat-stressed environments, yet this remains inadequately understood. Here, in a common garden, we evaluated the functional associations among physiological characteristics related to leaf thermoregulation, heat tolerance, xylem water transport, and stomatal regulation in eight shrub species commonly used for fixing active sand dunes in northern China. Our study showed that traits associated with heat adaptation and xylem hydraulics were closely related to stomatal regulation. More isohydric shrub species with higher water transport efficiency possessed stronger transpirational cooling capacity; whereas the more anisohydric species demonstrated greater tolerance to overheating. Moreover, leaf heat tolerance was strongly coordinated with drought tolerance reflected by leaf turgor loss point. These results underscore the importance of stomatal regulation in shaping plant thermal adaptive strategies and provide valuable insights into the coupling of water and heat-related physiological processes in plants adapted to sandy land environments prone to combined drought and heat stresses.","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646389","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

Functions and Regulation of HAM Family Genes in Meristems During Gametophyte and Sporophyte Generations. HAM 家族基因在配子体和孢子体世代分生组织中的功能和调控。

IF 6 1区生物学

Plant, Cell & Environment Pub Date : 2024-11-18 DOI: 10.1111/pce.15286

Yuan Geng, Chong Xie, Cankui Zhang, Xing Liu, Yun Zhou

{"title":"Functions and Regulation of HAM Family Genes in Meristems During Gametophyte and Sporophyte Generations.","authors":"Yuan Geng, Chong Xie, Cankui Zhang, Xing Liu, Yun Zhou","doi":"10.1111/pce.15286","DOIUrl":"https://doi.org/10.1111/pce.15286","url":null,"abstract":"A fascinating feature of land plants is their ability to continually initiate new tissues and organs throughout their lifespan, driven by a pool of pluripotent stem cells located in meristems. In seed plants, various types of meristems are initiated and maintained during the sporophyte generation, while their gametophytes lack meristems and rely on sporophyte tissues for growth. In contrast, seed-free vascular plants, such as ferns, develop meristems during both the sporophyte and gametophyte generations, allowing for the independent growth of both generations. Recent findings have highlighted both conserved and lineage-specific roles of the HAIRY MERISTEM (HAM) family of GRAS-domain transcriptional regulators in various meristems throughout the land plant lifecycle. Here, we review and discuss how HAM genes maintain meristem indeterminacy in both sporophytes and gametophytes, with a focus on studies performed in two model species: the flowering plant Arabidopsis thaliana and the fern Ceratopteris richardii. Additionally, we summarize the crucial and tightly regulated functions of the microRNA171 (miR171)-HAM regulatory modules, which define HAM spatial patterns and activities during meristem development across various meristem identities in land plants.","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142666209","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