Annals of botany最新文献

{"title":"Molecular investigation of the progenitors, origin, and domestication patterns of diploid Chinese old garden roses.","authors":"Cheng Zhang, Zheng-Zhi Jiang, Shao-Zong Yang, Shi-Qi Li, Zhen-Long Liang, Xin-Fen Gao","doi":"10.1093/aob/mcaf208","DOIUrl":"https://doi.org/10.1093/aob/mcaf208","url":null,"abstract":"<p><strong>Background and aims: </strong>Chinese old garden roses are major contributors in the genetic development of modern roses. The RoKSN gene is associated with continuous flowering in roses and is proposed to have originated from Chinese wild roses. However, the wild roses that are implicated in the breeding of Chinese old garden roses and the origin of the RoKSN locus remain unidentified. We collected 25 of the most renowned and classic diploid Chinese old garden roses along with all related wild roses from East Asia. These roses were analyzed with the aim of identifying the wild species that contributed to genetic composition of Chinese old garden roses. In addition, we aimed to infer the geographical origin of the RoKSN gene and to develop a schematic overview of hybrid domestication of Chinese old garden roses.</p><p><strong>Methods: </strong>We compared the haplotypes of internal transcribed spacers (nrITS), six nuclear single-copy genes, and three chloroplast genes between Chinese old garden roses and wild roses. Additionally, we assessed genetic organization using 21 Expressed Sequence Tag-Simple Sequence Repeats to identify potential donor species that contributed to the emergence of these cultivars. Primers were designed for RoKSN to allow comparison of the gene across the entire distribution range of Rosa sect. Chinenses.</p><p><strong>Key results: </strong>Our findings confirmed that the majority of rose cultivars are descendants of early hybridization events. Rosa chinensis var. spontanea, R. odorata var. gigantea, and R. multiflora var. cathayensis were the primary donors for the 25 cultivar roses. Chinese old garden roses were categorized into four groups. Ten cultivars were hybrids between R. chinensis var. spontanea and R. multiflora var. cathayensis, thereby forming the 'Old Blush' group. Five cultivars were hybrids between 'Old Blush' and R. kwangtungensis species complex, thereby forming the 'Slater's crimson' group. Six cultivars were hybrids between 'Old Blush' and R. odorata var. gigantea, thereby forming the 'Tea Rose' group, and three cultivars were hybrids that evolved from more than three donors. Moreover, we observed relatively close genetic proximity among Chinese old garden roses with an identical RoKSN-copia gene that is responsible for continuous flowering which indicates a single origin for this retrotransposon-containing allele. Additionally, we determined that the haplotypes of the RoKSN-copia gene predominantly occurred in the Sichuan Basin region. In contrast, R. chinensis cultivated in the Ya'an region showed no markers of hybridization and displayed a genetic composition that was close to that of the wild species R. chinensis var. spontanea. This cultivar may represent the earliest mutated individual that bears the RoKSN-copia gene and may have served as a bridge from wild species to continuous flowering old rose cultivars.</p><p><strong>Conclusions: </strong>The study provides crucial evidence that el","PeriodicalId":8023,"journal":{"name":"Annals of botany","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145005812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Repeated loss of plastid NDH during evolution of land plants.","authors":"Gitte Petersen","doi":"10.1093/aob/mcaf198","DOIUrl":"https://doi.org/10.1093/aob/mcaf198","url":null,"abstract":"<p><strong>Background: </strong>Advances in DNA sequencing technology have led to a rapid increase in the number of species with organelle genomes and even complete nuclear genomes being sequenced. Thousands of plastid genomes from across all major clades of land plants are now available, and one of the surprising findings is the recurring event of complete or functional loss of genes involved in cyclic electron transport during photosynthesis - the ndh genes that encode subunits of the chloroplast NADH dehydrogenase-like (NDH) complex. Gene loss in non-photosynthetic, heterotrophic plants may be expected, but the increasing number of losses being discovered in autotrophic plants questions the role and potential dispensability of the ndh genes and the entire NDH complex.</p><p><strong>Scope: </strong>With a focus on autotrophic plants, the present review compiles published evidence about the loss of both plastid and nuclear encoded NDH genes, providing an overview spanning all major clades of land plants. Current knowledge about the function of NDH and the possible reasons behind repeated loss is discussed.</p><p><strong>Conclusions: </strong>More than 100 independent events of plastid ndh gene loss have been reported from autotrophic land plants, and strong evidence exists that these losses go hand in hand with the loss of nuclear encoded NDH genes. While loss is almost inevitable in heterotrophic plants and common among carnivorous plants, it occurs in what appears to be random among normal, autotrophic plants. No single underlying reason for the events of loss can be discerned although a link to nutrient acquisition prevails. Even in autotrophic plants, the NDH complex may simply be dispensable due to the existence of an alternative and major pathway of cyclic electron transport around photosystem I.</p>","PeriodicalId":8023,"journal":{"name":"Annals of botany","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144991242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Developmental changes in epidermal anatomy, drought tolerance, and biomechanics in the leaves of a tropical fern.","authors":"Daniel Vieira-Goncalves, Adam B Roddy","doi":"10.1093/aob/mcaf204","DOIUrl":"10.1093/aob/mcaf204","url":null,"abstract":"<p><p>Throughout leaf development, cell expansion is dynamic and driven by the balance between local cell wall mechanical properties and the intracellular turgor pressure that overcomes the stiffness of the cell wall leading to plastic deformation. The epidermal pavement cells in most leaves begin development as small, polygonally shaped cells, but in mature leaves epidermal pavement cells are often shaped as highly lobed puzzle pieces. However, the developmental and biomechanical trajectories between these two end points have not before been fully characterized. Here we characterized how epidermal pavement cell size and shape, cell wall thickness, and hydraulic traits change during leaf expansion in the tropical understory fern Microsorum grossum (Polypodiaceae). As fronds expanded by approximately two orders of magnitude in size, epidermal pavement cells became increasingly lobed as cell walls thickened. Furthermore, the timing of these developmental changes varied across the lamina, start first near the frond base and midrib, followed by more apical and lateral regions. During expansion, fronds also underwent substantial physiological changes: as cells expanded and cell walls thickened, intracellular turgor pressure and the bulk cell wall modulus of elasticity both increased while the water potential at turgor loss and the minimum epidermal conductance to water vapor both decreased. These results highlight the dynamic coordination between anatomical and physiological traits throughout leaf development, provide valuable data for biophysical modeling of leaf development, and highlight the vulnerability of developing leaves to drought conditions.</p>","PeriodicalId":8023,"journal":{"name":"Annals of botany","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144939807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Changes in pollen production, pollen heteromorphism and ovule production with increased selfing in Viola arvensis.","authors":"Samson Acoca-Pidolle, Perrine Gauthier, Pierre-Olivier Cheptou","doi":"10.1093/aob/mcaf203","DOIUrl":"https://doi.org/10.1093/aob/mcaf203","url":null,"abstract":"<p><strong>Background and aims: </strong>Pollen:ovule ratios are often lower in species and populations with higher selfing rates. This may be due either to higher pollination efficiency through selfing, or to lower male competition when less allo-pollen is available. Changes in pollination can also impact pollen traits, such as the number of apertures. Viola arvensis has experienced a rapid recent increase in selfing rates, and a rapid floral trait evolution towards the selfing syndrome. This study tests the hypothesis that V. arvensis is also undergoing a rapid evolution in its pollen:ovule ratio and pollen heteromorphism.</p><p><strong>Methods: </strong>Using the resurrection ecology methodology, we compared four ancestral populations (from ca. 30 years ago) to their descendants (from 2021). We counted ovules and pollen and measured the three pollen aperture morphs in 50 individuals per population. We also developed a model to better understand the links between the number of apertures and the mating system.</p><p><strong>Key results: </strong>We found no temporal change in pollen or ovule production. However, populations with the lowest pollen:ovule ratios were also the ones with the highest ancestral selfing rates, suggesting that the pollen:ovule ratio could have evolved on a similar time scale to population differentiation. Our model predicts a positive correlation between number of apertures and selfing rates, if pollination parameters remain constant. However, this positive correlation was not found in our results, neither across populations nor through time.</p><p><strong>Conclusions: </strong>Unlike floral morphology, pollen and ovule production did have not evolve rapidly with increased selfing rates, suggesting a delayed change of the pollen:ovule ratio compared to other traits of the selfing syndrome. The absence of correlation between pollen heteromorphism and selfing rate can be explained by multiple (non-mutually exclusive) factors: a decrease in allo-pollen deposition correlated with the evolution of the selfing syndrome, pollinator declines, or the absence of selection in this trait.</p>","PeriodicalId":8023,"journal":{"name":"Annals of botany","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144939844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The evolutionary dynamics of plant mating systems: how bias for studying 'interesting' plant reproductive systems could backfire.","authors":"Elena M Meyer, Laura F Galloway, Andrew J Eckert","doi":"10.1093/aob/mcaf031","DOIUrl":"10.1093/aob/mcaf031","url":null,"abstract":"<p><strong>Background and aims: </strong>An 'abominable mystery': angiosperm sexual systems have been a source of both interest and frustration for the botanical community since Darwin. The evolutionary stability, overall frequency and distribution of self-fertilization and mixed-mating systems have been explored in a variety of studies. However, there has been no recent study which directly addresses our knowledge of mating systems across families, the adequacy of existing data or the potential for biases.</p><p><strong>Scope: </strong>Here we present an updated dataset of mating systems across flowering plants covering 6781 species and 212 families based on a synthesis of existing reviews and an original literature review using Web of Science. We assess the adequacy of these data by evaluating for bias indicating enrichment of certain families or sexual systems.</p><p><strong>Key results: </strong>We find that the vast majority of our data on mating systems come from a small number of disproportionally sampled families, and that families with significant proportions of dioecious or monoecious species are much more likely to be undersampled.</p><p><strong>Conclusions: </strong>Our results show that the frequency of selfing in angiosperms is overestimated, possibly due to increased research interest in selfing and mixed-mating systems. This suggests that systematic study bias may mean we know less about this vital facet of plant life than we think.</p>","PeriodicalId":8023,"journal":{"name":"Annals of botany","volume":" ","pages":"15-27"},"PeriodicalIF":3.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12401890/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143584165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Can grapevine physiology inform best management practices for new techniques in agrivoltaics and agroforestry? A commentary on 'Source-sink manipulations through shading, crop load and water deficit affect plant morphogenesis and carbon sink priorities leading to contrasted plant carbon status in grapevine'.","authors":"Nicholas C Collins, Stephen D Tyerman, Cassandra Collins","doi":"10.1093/aob/mcaf018","DOIUrl":"10.1093/aob/mcaf018","url":null,"abstract":"","PeriodicalId":8023,"journal":{"name":"Annals of botany","volume":" ","pages":"i-ii"},"PeriodicalIF":3.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12401877/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143655870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Source-sink manipulations through shading, crop load and water deficit affect plant morphogenesis and carbon sink priorities leading to contrasted plant carbon status in grapevine.","authors":"Magali Poupard, Agustina Gallo, Romain Boulord, Pablo Guillem, Gaëlle Rolland, Thierry Simonneau, Angélique Christophe, Benoît Pallas","doi":"10.1093/aob/mcae203","DOIUrl":"10.1093/aob/mcae203","url":null,"abstract":"<p><strong>Background and aims: </strong>Shading, water deficit and crop load shape plant development in a very plastic way. They directly influence the plant's carbon supply and demand to and from the different organs via metabolic, hydraulic and hormonal mechanisms. However, how the multiple environmental factors combine through these mechanisms and how they interplay with carbon status, vegetative and reproductive development and carbon assimilation of the plant needs to be investigated in the context of current climatic and technological constraints.</p><p><strong>Methods: </strong>With this aim, two experiments were conducted on potted grapevines, subjected to ten combinations of treatments. Leaf area growth rates, berry characteristics at harvest (weight, number and total soluble content) and a series of leaf traits (gas exchanges, non-structural carbohydrate contents, water potential and SPAD [Soil-Plant Analysis Development] values) were measured.</p><p><strong>Key results: </strong>Grapevine development showed different responses corresponding to different sink priorities: under shade, vegetative development was maintained at the expense of berries, whereas under high crop load and water deficit, berry growth was the priority sink. These responses were accompanied by changes in specific leaf area in agreement with the shade avoidance syndrome. These different strategies affected plant carbon status as estimated through starch content in leaves. Leaf starch content was not affected by shade, while it decreased under water deficit and crop load conditions. Carbon assimilation was decreased under water deficit, low crop load and shading conditions. Hydraulic properties and leaf nitrogen content correlated with this decrease while plant carbon status had a very low impact. Finally, no major interaction between the different types of constraint was observed on both morphological and functional variables.</p><p><strong>Conclusions: </strong>Depending on the type of abiotic constraints, grapevine exhibits specific morphogenetic responses at plant and leaf levels. The absence of interaction between the different constraints showed that grapevine is able to exhibit independent responses to shade and water deficit. This result is of major importance for the further design of new agricultural systems facing multiple abiotic constraints, such as those in agroforestry and agrivoltaic systems.</p>","PeriodicalId":8023,"journal":{"name":"Annals of botany","volume":" ","pages":"49-66"},"PeriodicalIF":3.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12401888/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142826772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Constant distance between leaf initiation sites permits non-destructive analysis of apical meristem activity during cactus shoot growth.","authors":"James D Mauseth","doi":"10.1093/aob/mcaf085","DOIUrl":"10.1093/aob/mcaf085","url":null,"abstract":"<p><strong>Background and scope: </strong>Trunks of saguaro cacti (Carnegiea gigantea) grow for many years, and during this time the shoot apical meristem (SAM) of each trunk not only grows in diameter, it also initiates new orthostichies (ribs). Several questions were examined. Is a saguaro SAM's diameter correlated with the number of orthostichies/ribs it is producing? Is SAM diameter tightly controlled, or does it vary among individuals of the same age? When saguaro trunks are ~3 m tall, their SAMs stop adding new orthostichies/ribs: do SAMs stop growing only after reaching a critical diameter, or do the SAMs vary in diameter when each stops growing?</p><p><strong>Methods: </strong>Ribs were counted at various heights (corresponding to various ages) on saguaro plants in habitat. Shoot apical meristem diameter was measured by light microscopy in sectioned material. Shoot apical meristems of Echinocactus grusonii were also studied.</p><p><strong>Key results: </strong>Shoot apical meristem diameter is strongly correlated with the number of ribs being maintained: the circumferential distance between newly initiated leaf primordia remains constant (145 ± 10.6 µm in C. gigantea; 193 ± 10.7 µm in E. grusonii) even as an SAM grows in diameter. An SAM's diameter and circumference can be estimated by counting the number of ribs it is maintaining. The diameter of each SAM of C. gigantea increases for many years but it eventually stabilizes; the final, stable diameter of each C. gigantea SAM varies from shoot to shoot.</p><p><strong>Conclusions: </strong>Shoot apical meristem diameter in both species can be estimated non-destructively by simply counting the number of orthostichies/ribs the SAM is producing (or produced in the past). The growth rate of C. gigantea SAMs varies from plant to plant and can change with age. All C. gigantea SAMs stop increasing in diameter at some point, but that diameter varies from plant to plant.</p>","PeriodicalId":8023,"journal":{"name":"Annals of botany","volume":" ","pages":"229-241"},"PeriodicalIF":3.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12401885/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143962738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Longevity, cryopreservation and propagation of carnivorous plants seeds: insights from 13 species in long-term ex situ collections.","authors":"Daniel Ballesteros, Rachael M Davies, Jennifer L Peach, Valerie C Pence","doi":"10.1093/aob/mcaf058","DOIUrl":"10.1093/aob/mcaf058","url":null,"abstract":"<p><strong>Background and aims: </strong>A quarter of the assessed carnivorous plants (CPs) are threatened with extinction, and the effectiveness of ex situ conservation initiatives must be evaluated to complement in situ conservation efforts. Conventional seed storage (e.g. 15 % relative humidity, -20 °C) is the most common and efficient strategy for plant ex situ conservation, but seeds of diverse CPs might be short lived in these conditions. Thus, there is a need to assess their longevity empirically and comparatively and to evaluate the success of alternative storage options.</p><p><strong>Methods: </strong>Diverse seed collections were used to assess longevity of seeds of 13 CP species stored (some for 30 years) in various storage conditions: ambient/uncontrolled, conventional and cryogenic.</p><p><strong>Key results: </strong>The relative short longevity of CP seeds stored in ambient/uncontrolled and conventional conditions was confirmed for some taxa (e.g. Drosera rotundifolia L.). Nevertheless, despite this potential short longevity, seeds of 64 % of accessions tested retained their initial viability for up to two decades when stored in conventional seed bank conditions. Only some accessions stored for longer times (>25 years) showed significant signs of deterioration, with D. rotundifolia and Drosera anglica Huds. showing a time for viability to fall to 50 % (P50) in the region of other taxa considered medium/short or short lived in comparable cold/dry storage conditions. As an alternative (or complement) to conventional seed banking, cryogenic storage of dry seeds was able to preserve a high germination percentage of seeds of CPs stored for up to two decades. Furthermore, seedlings obtained developed normally into healthy plants when monitored for ≤1.5 years after germination.</p><p><strong>Conclusions: </strong>Despite the potential short lifespan of seeds of some CP taxa, this paper highlights and supports their routine dry storage in ex situ conservation programmes to support in situ conservation initiatives.</p>","PeriodicalId":8023,"journal":{"name":"Annals of botany","volume":" ","pages":"111-128"},"PeriodicalIF":3.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12401891/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143771103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plants originating from more extreme biomes have improved leaf thermoregulation.","authors":"Pieter A Arnold, Monique J White, Alicia M Cook, Andy Leigh, Verónica F Briceño, Adrienne B Nicotra","doi":"10.1093/aob/mcaf080","DOIUrl":"10.1093/aob/mcaf080","url":null,"abstract":"<p><strong>Background and aims: </strong>Many plants have some capacity for leaf thermoregulation via stomatal conductance (gsw), such that leaf temperature (Tleaf) is rarely coupled with air temperature (Tair). The difference between leaf and air temperature (thermal offset, ΔT) and the slope (thermal coupling strength, β) is mediated by interactions between the immediate environment of the plant and its leaf traits. The aim of this study was to determine whether species originating from biomes with contrasting environmental conditions (alpine, desert and coastal temperate) would differ in their tendency to thermoregulate in a common environment.</p><p><strong>Methods: </strong>Using benign-temperature (25 °C) and high-temperature (38 °C) glasshouse treatments, we measured paired canopy Tair and Tleaf for 15 diverse species, 5 from each biome, in a common garden experiment. Instantaneous stomatal conductance and a suite of leaf traits were measured and calculated to test for associations with leaf thermoregulation.</p><p><strong>Key results: </strong>We found clear evidence for greater leaf cooling occurring during high-temperature exposure, especially in alpine and desert species. The leaves of temperate species were largely warmer than air in both treatments. Thicker leaves with higher water content and high stomatal conductance clearly were more effective at cooling. Species originating from different biomes displayed divergent responses of thermal offset and thermal coupling with leaf traits.</p><p><strong>Conclusions: </strong>Our findings suggest that plants originating from more extreme biomes have innately greater scope for thermoregulation, especially desert plants, which could better counter the risk of reaching excess temperatures at the cost of higher water loss. Leaf thermoregulation is a complex plant-environment interaction, and our work contributes to the development of more accurate predictions of leaf temperature during heat exposure across diverse species and biomes.</p>","PeriodicalId":8023,"journal":{"name":"Annals of botany","volume":" ","pages":"199-213"},"PeriodicalIF":3.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12401887/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143973987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}