Plant Biology最新文献_第2页

Sustained carbohydrate formation and growth concur with drought-limited photosynthesis in an alpine plant species. 在一个高山植物物种中，持续的碳水化合物形成和生长与干旱限制的光合作用一致。

IF 4.2 3区生物学

Plant Biology Pub Date : 2025-07-16 DOI: 10.1111/plb.70076

C Reyes-Bahamonde, F I Piper, L A Cavieres

{"title":"Sustained carbohydrate formation and growth concur with drought-limited photosynthesis in an alpine plant species.","authors":"C Reyes-Bahamonde, F I Piper, L A Cavieres","doi":"10.1111/plb.70076","DOIUrl":"https://doi.org/10.1111/plb.70076","url":null,"abstract":"This study aimed to understand the drivers of non-structural carbohydrate (NSC) formation in the alpine plant Phacelia secunda in habitats with drought and low temperatures. It was hypothesized that NSCs may accumulate passively due to growth limitations, or actively through storage prioritization. Additionally, it was explored how local adaptation affects growth and photosynthesis sensitivity to environmental constraints, influencing NSC formation. The study investigated NSC formation in plants at three elevations (1600 m to 3600 m a.s.l.) under three watering regimes (control, mild drought, severe drought), and two temperature regimes (5/2°C and 15/7°C) for 1 month. Growth, photosynthesis, NSC concentrations, and survival were measured. In low-elevation plants exposed to 5/2°C, growth decreased more than photosynthesis, and NSC increased, suggesting passive NSC accumulation. In low- and mid-elevation plants exposed to 15/7°C under mild or severe drought, and in mid-elevation plants exposed to 5/2°C with mild drought, NSC concentrations increased despite photosynthesis being reduced more than growth, suggesting active NSC formation. Local adaptation influences growth and photosynthetic sensitivity to environmental stress, affecting NSC regulation. In plants from lower elevations, locally adapted to drier conditions, NSC increased when growth was less reduced than photosynthesis, indicating that NSC formation was not passive. This study demonstrates that in drought-adapted plants, growth and NSC formation can occur simultaneously, even with limited carbon gain.","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144648084","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}

引用次数: 0

Isotope evidence for partial mycoheterotrophy and trophic flexibility in the arbuscular mycorrhizal green plant Gentiana zollingeri. 丛枝菌根绿色植物龙胆部分异养和营养柔韧性的同位素证据。

IF 4.2 3区生物学

Plant Biology Pub Date : 2025-07-14 DOI: 10.1111/plb.70071

K Suetsugu

{"title":"Isotope evidence for partial mycoheterotrophy and trophic flexibility in the arbuscular mycorrhizal green plant Gentiana zollingeri.","authors":"K Suetsugu","doi":"10.1111/plb.70071","DOIUrl":"https://doi.org/10.1111/plb.70071","url":null,"abstract":"Arbuscular mycorrhizal (AM) associations are central to terrestrial ecosystems, typically facilitating the exchange of organic carbon from plants for mineral nutrients from fungi. Full mycoheterotrophy, in which plants derive all their carbon from AM fungi, is widespread among many achlorophyllous plant taxa such as Voyria and Voyriella (Gentianaceae). However, the extent and ecological significance of partial mycoheterotrophy, where green AM plants supplement photosynthesis with fungal carbon, remain under debate. This study investigates the nutritional mode of Gentiana zollingeri, a photosynthetic Gentianaceae species, using 13C and 15N stable isotope analysis, focusing on the relationship between isotopic enrichment and leaf ratio (leaf biomass relative to total shoot biomass). Gentiana zollingeri exhibited significantly higher 13C and 15N than autotrophic reference plants, suggesting a reliance on fungal-derived carbon and nitrogen. A negative correlation between 13C enrichment and leaf ratio indicates that the enrichment reflects fungal dependence rather than alternative physiological traits. Notably, the underground stem showed 13C enrichment comparable to that of fully mycoheterotrophic Gentianaceae, suggesting it is primarily composed of fungal carbon. These findings support the hypothesis that G. zollingeri employs a flexible nutrition strategy, adjusting fungal dependence according to photosynthetic capacity. Although modest 13C and 15N enrichment alone cannot confirm partial mycoheterotrophy, integrative approaches combining stable isotope data with ecological and physiological indicators (e.g., negative correlation between 13C enrichment and leaf ratio) strongly support fungal carbon acquisition in G. zollingeri. Similar frameworks will help to rigorously assess partial mycoheterotrophy in other Paris-type AM plants with subtle isotopic enrichment.","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144625131","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}

引用次数: 0

Ecology and evolution of plant chemodiversity 植物化学多样性的生态学和进化

IF 4.2 3区生物学

Plant Biology Pub Date : 2025-07-12 DOI: 10.1111/plb.70046

C. Müller, B. Fuchs, J.-P. Schnitzler, S. B. Unsicker, S. R. Whitehead

引用次数: 0

Optimizing photosynthesis, resource use efficiency, and yield in maize-soybean intercropping through row configurations in Southwest China. 通过行配置优化西南玉米-大豆间作的光合作用、资源利用效率和产量

IF 4.2 3区生物学

Plant Biology Pub Date : 2025-07-11 DOI: 10.1111/plb.70070

Y Huang, M Q Wang, L L Wei, C J Zhao, L Yang, X B Zhou

{"title":"Optimizing photosynthesis, resource use efficiency, and yield in maize-soybean intercropping through row configurations in Southwest China.","authors":"Y Huang, M Q Wang, L L Wei, C J Zhao, L Yang, X B Zhou","doi":"10.1111/plb.70070","DOIUrl":"https://doi.org/10.1111/plb.70070","url":null,"abstract":"Intercropping is widely practiced in Southwest China, but studies on optimizing aboveground light use and enhancing photosynthetic capacity through row configuration to improve productivity remain limited. In this study, a randomized block design was used to systematically compare photosynthetic performance, resource use efficiency, and yield advantages between intercropping and monoculture systems, as well as among different row configurations within the intercropping system. Photosynthesis (Pn), leaf area index (LAI), dry matter accumulation (DMA), and intercepted photosynthetically active radiation (IPAR) of intercropping maize increased by 11.47%, 17.72%, 24.07%, and 9.91%, respectively. Among all configurations, the M2S4 arrangement had the highest average LAI for both maize (3.10) and soybean (2.56). A higher LAI facilitated increased light interception, with IPAR values of 84.78% for maize and 73.67% for soybean, thereby enhancing radiation use efficiency (RUE). Under the M2S4 configuration, both Pn (increased 8.51% in maize and 11.95% in soybean) and DMA (increased 14.95% in maize and 32.67% in soybean) were significantly higher than in other configurations. Improved Pn promoted grain development, resulting in increased maize 1000-grain weight (TGW) by 6.68% and soybean 100-grain weight (HGW) by 6.26%, contributing to higher total yields and improved land equivalent ratios (LER). Furthermore, correlation analysis revealed significant positive relationships among LAI, IPAR, RUE, and LER with yield. Principal components analysis further indicated that the M2S4 configuration had highest overall performance. This study suggests that maize-soybean intercropping under the M2S4 configuration in Southwest China enhanced photosynthetic capacity and optimized resource utilization, leading to improved yield performance.","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615602","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}

引用次数: 0

Pinus-derived membrane vesicles disrupt pathogenic metabolism in fungi. 松源性膜囊破坏真菌的病原代谢。

IF 4.2 3区生物学

Plant Biology Pub Date : 2025-07-04 DOI: 10.1111/plb.70069

S Kunene, T J Mmushi, E Steenkamp, T Motaung

{"title":"Pinus-derived membrane vesicles disrupt pathogenic metabolism in fungi.","authors":"S Kunene, T J Mmushi, E Steenkamp, T Motaung","doi":"10.1111/plb.70069","DOIUrl":"https://doi.org/10.1111/plb.70069","url":null,"abstract":"Much of what we know about the biological impacts of vesicles (MVs) is derived from Arabidopsis thaliana. Our study focused on vesicles from species in the non-model plant group, Pinus (pine) (P. elliottii, P. radiata, and P. patula × Pinus tec (hybrid)). These plants have tougher tissues and strong, acicular-shaped leaves (needles). Herein, we first developed a protocol to guide effective collection of juice fluid from needles and roots in a clean and efficient manner. The effects of these vesicles were characterized in terms of the global nutrient profile of the pine pitch canker fungus, Fusarium circinatum, generated from growing fungal spores on ~400 substrates embedded across BioLog phenotypic microarray (PM) plates (PM1, PM2A: carbon sources; PM3B: nitrogen sources; PM9: osmolytes/pH; PM24C: chemicals). Our findings revealed that MVs, specifically needle-derived MVs (ndMVs) from P. elliottii, disrupt metabolite assimilation in several important pathways, including carbon and nitrogen metabolism. The PM data were also strongly correlated with observed phenotypic effects, including reduced viability and germination of spores in liquid media, as well as impaired filamentous growth on solid media. Importantly, these MV-induced phenotypic effects were reproducible in other filamentous pathogens (e.g., Botrytis cinerea, Chrysoporthe cubensis and F. graminearum) and during a glasshouse trial conducted with F. circinatum-infected P. elliottii seedlings, demonstrating the stable biological effects of ndMVs. Cumulatively, our results suggest that plant-derived vesicles can disrupt metabolism in pathogenic fungi and, therefore, serve as a cost-effective and sustainable source of novel plant protection molecules.","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144566867","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}

引用次数: 0

Investigating the effects of fire on pollinator-dependent distyly polymorphism. 探讨火对传粉媒介依赖性二聚体多态性的影响。

IF 4.2 3区生物学

Plant Biology Pub Date : 2025-07-04 DOI: 10.1111/plb.70062

R Trevizan, C Mendes-Rodrigues, P E Oliveira, P K Maruyama, F W Amorim, J C F Cardoso

{"title":"Investigating the effects of fire on pollinator-dependent distyly polymorphism.","authors":"R Trevizan, C Mendes-Rodrigues, P E Oliveira, P K Maruyama, F W Amorim, J C F Cardoso","doi":"10.1111/plb.70062","DOIUrl":"https://doi.org/10.1111/plb.70062","url":null,"abstract":"Fire influences plant traits in several ways, but its effects on flower polymorphisms are unknown. Distyly, a floral polymorphism with long-styled (L-styled) and short-styled (S-styled) morphs exhibiting reciprocal herkogamy and a self-incompatibility system, depends on biotic pollination for intermorph pollination and reproduction. We investigated the effects of fire on the functioning of distyly, assessing morphology, floral reward, between-morph reciprocity, and reproductive success. We studied a population of the distylous hummingbird-pollinated Palicourea rigida (Rubiaceae) in the Brazilian savanna by comparing individuals from a fire-affected area with those from a contiguous unaffected area. Fire affected some floral traits, reducing the number of inflorescences (9.4%), corollas (4.7%), anthers (5.9%), and L-styled stigmas (33.5%). However, it did not affect plant height, number of buds and inflorescences, or nectar traits. Fire did not affect between-morph reciprocity. Hence, plants affected or not affected by fire presented similar reciprocity measures, translating into similar pollen deposition and fruit set of both morphs. Fire also had a morph-specific positive effect on the S-morph fruit set (35.31% increase). Fire can induce morphological changes in distylous species. However, fire does not influence most pollinator attraction and reward traits. The consistency of reproductive heights enables pollen flow within the fire-affected area and across the mosaic of different fire histories. The high resprouting ability linked to the rapid restoration of reproductive capacity allows distyly functioning through efficient intermorph pollen transfer. Such plant resilience may be important for maintaining the polymorphism and the associated pollinators under increasingly frequent anthropogenic fires.","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144566866","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}

引用次数: 0

Genome blaze: engineering chilli pepper chloroplasts for sustainable production of capsaicinoids through organellar genome editing. 基因组火焰：工程辣椒叶绿体可持续生产辣椒素通过细胞器基因组编辑。

IF 4.2 3区生物学

Plant Biology Pub Date : 2025-07-03 DOI: 10.1111/plb.70067

M Bulle, S Abbagani, A Raza

{"title":"Genome blaze: engineering chilli pepper chloroplasts for sustainable production of capsaicinoids through organellar genome editing.","authors":"M Bulle, S Abbagani, A Raza","doi":"10.1111/plb.70067","DOIUrl":"https://doi.org/10.1111/plb.70067","url":null,"abstract":"The quest for superior parental lines of chilli pepper, enriched with heightened levels of phytochemicals, such as capsinoids (CATs) and capsaicinoids (CAPs), has recently gained momentum. Plant scientists now pay more attention to generating pepper cultivars that offer both increased yield and richness in these crucial ingredients. Indeed, the average pepper yield per hectare, as well as richness of these ingredients, are affected by multiple environmental stimuli. However, expression of specific genes is crucial to stimulate the CAT and CAP levels in response to environmental conditions. Recently, new technologies, like genome editing using CRISPR/Cas and engineering of chloroplasts, have been tested in chilli pepper. The advances in genome editing tools, such as the prime editor and base editor methods, have tremendous potential for plant organelle genome engineering. In this article, we highlight recent advancements in CRISPR/Cas and plastid engineering within Capsicum, coupled with application of base editing approaches for editing plant organelle DNA. We also assess the challenges and opportunities in the pursuit of commercial and sustainable production of bioactive compounds specific to Capsicum species.","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144558637","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}

引用次数: 0

Match of fruit-scented cone volatile composition with genetic boundary in Cycas revoluta and implications for fruit mimicry pollination 苏铁果香球果挥发性成分与遗传边界的匹配及其对拟果传粉的启示。

IF 4.2 3区生物学

Plant Biology Pub Date : 2025-07-03 DOI: 10.1111/plb.70052

J.-T. Chang, T.-C. Lee, A. K. Valchanova, T. Okamoto, P.-C. Liao, G. Kokubugata, Y. Okuyama

引用次数: 0

Transcript correlation analysis for the identification of novel plant genes involved in iron metabolism and beyond: what next? 转录本相关分析鉴定与铁代谢相关的植物新基因：下一步是什么？

IF 4.2 3区生物学

Plant Biology Pub Date : 2025-07-02 DOI: 10.1111/plb.70068

I Murgia, P Morandini

引用次数: 0

CBF1 is an underestimated plant regulatory transcription factor. CBF1是一种被低估的植物调控转录因子。

IF 4.2 3区生物学

Plant Biology Pub Date : 2025-07-02 DOI: 10.1111/plb.70063

P Wang, C Li, W Li, X Xu, K Zang, X Su, W Guo, H Cheng, H Guo

{"title":"CBF1 is an underestimated plant regulatory transcription factor.","authors":"P Wang, C Li, W Li, X Xu, K Zang, X Su, W Guo, H Cheng, H Guo","doi":"10.1111/plb.70063","DOIUrl":"https://doi.org/10.1111/plb.70063","url":null,"abstract":"CBF1 transcription factors have been extensively utilized for their remarkable contribution to stress resistance that helps plants to cope with complex abiotic stresses. However, their regulation of plant type and other traits is often neglected. We overexpressed the Ammopiptanthus mongolicus CBF1 gene in cotton. Three transgenic lines, L28, L30, and L41, with high expression levels were successfully obtained. Subsequently, we comprehensively examined multiple cotton phenotypes, including plant height, overall morphology, leaf shape, leaf colour, and leaf thickness. Additionally, we analysed hormone levels, yield, and fibre quality. Through comparative analysis, we found that the overexpressed plants had strong root structure, dwarf and compact architecture, more serrated leaf edges, thick leaf tissues, and darker leaf colour compared to wild cotton. Moreover, there was a significant decrease in IAA and GA3. The overexpressing plants displayed many trait alterations, all of which were regulated by AmCBF1. The study of aboveground plant morphology in crops is essential for understanding crop growth and yield. Significantly, although CBF1 plays a prominent role in mediating stress resistance, its importance in influencing plant architecture and other traits has been somewhat overlooked. Consequently, exploring the diverse roles of CBF1 in plant development will be crucial in future research.","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144551535","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}

引用次数: 0