Plant Biology最新文献_第10页

Investigating properties of sweet cherry (Prunus avium) flower buds that help promote freezing avoidance by supercooling 研究甜樱桃（Prunus avium）花蕾的特性，这些特性有助于通过过冷促进避免冷冻。

IF 4.2 3区生物学

Plant Biology Pub Date : 2024-08-21 DOI: 10.1111/plb.13697

E. Houghton, Y. Watanabe, D. Neilsen, L. M. Nelson, K. Hannam

引用次数: 0

Eco-evolutionary factors contribute to chemodiversity in aboveground and belowground cucurbit herbivore-induced plant volatiles. 生态进化因素促成了葫芦科植物地上和地下食草动物诱导的植物挥发物的化学多样性。

IF 4.2 3区生物学

Plant Biology Pub Date : 2024-08-20 DOI: 10.1111/plb.13709

M N Thompson, Z P Cohen, D Merrell, A M Helms

{"title":"Eco-evolutionary factors contribute to chemodiversity in aboveground and belowground cucurbit herbivore-induced plant volatiles.","authors":"M N Thompson, Z P Cohen, D Merrell, A M Helms","doi":"10.1111/plb.13709","DOIUrl":"https://doi.org/10.1111/plb.13709","url":null,"abstract":"When attacked by insect herbivores, plants emit blends of chemical compounds known as herbivore-induced plant volatiles (HIPVs). Although HIPVs are produced both aboveground and belowground, how HIPVs vary across plant tissues remains unresolved, as do the selective forces shaping interspecific HIPV emission patterns. Here, we compared foliar and root HIPVs within and among closely related plant species and evaluated if different eco-evolutionary forces, including plant domestication, coexistence histories with herbivores, or phylogenetic relatedness, explain HIPV blends. To examine aboveground and belowground patterns in HIPVs, we compared leaf and root volatile profiles for six species in the Cucurbitaceae that differed in domestication status and coexistence history with specialist insect herbivores. We predicted that within-species HIPVs from different tissues would be more similar than HIPV blends among different species, and that plant volatile chemodiversity was reduced by domestication and enhanced by coexistence histories with herbivores. We found that herbivory induced both quantitative and qualitative changes in volatile emissions across all plant species, which were more pronounced aboveground than belowground. Each species produced tissue-specific HIPVs, and foliar and root HIPVs differed among species. Contrary to our predictions, plant domestication enhanced foliar volatile diversity, while coexistence histories with herbivores reduced foliar and root volatile diversity. Additionally, phylogenetic relatedness did not correlate with aboveground or belowground volatiles. Overall, this work furthers our understanding of the eco-evolutionary forces driving patterns in aboveground and belowground HIPV emissions, elucidating an important and previously undescribed component of within-plant variation in chemodiversity.","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142003230","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

Characterization of switchgrass (Panicum virgatum L.) PvKSL1 as a levopimaradiene/abietadiene-type diterpene synthase. 开关草（Panicum virgatum L.）PvKSL1作为左旋丙二烯/阿维塔二烯型二萜合成酶的特征。

IF 4.2 3区生物学

Plant Biology Pub Date : 2024-08-20 DOI: 10.1111/plb.13708

G Wyatt, P Zerbe, K Tiedge

{"title":"Characterization of switchgrass (Panicum virgatum L.) PvKSL1 as a levopimaradiene/abietadiene-type diterpene synthase.","authors":"G Wyatt, P Zerbe, K Tiedge","doi":"10.1111/plb.13708","DOIUrl":"https://doi.org/10.1111/plb.13708","url":null,"abstract":"The diverse class of plant diterpenoid metabolites serves important functions in mediating growth, chemical defence, and ecological adaptation. In major monocot crops, such as maize (Zea mays), rice (Oryza sativa), and barley (Hordeum vulgare), diterpenoids function as core components of biotic and abiotic stress resilience. Switchgrass (Panicum virgatum) is a perennial grass valued as a stress-resilient biofuel model crop. Previously we identified an unusually large diterpene synthase family that produces both common and species-specific diterpenoids, several of which accumulate in response to abiotic stress. Here, we report discovery and functional characterization of a previously unrecognized monofunctional class I diterpene synthase (PvKSL1) via in vivo co-expression assays with different copalyl pyrophosphate (CPP) isomers, structural and mutagenesis studies, as well as genomic and transcriptomic analyses. In particular, PvKSL1 converts ent-CPP into ent-abietadiene, ent-palustradiene, ent-levopimaradiene, and ent-neoabietadiene via a 13-hydroxy-8(14)-ent-abietene intermediate. Notably, although featuring a distinct ent-stereochemistry, this product profile is near-identical to bifunctional (+)-levopimaradiene/abietadiene synthases occurring in conifer trees. PvKSL1 has three of four active site residues previously shown to control (+)-levopimaradiene/abietadiene synthase catalytic specificity. However, mutagenesis studies suggest a distinct catalytic mechanism in PvKSL1. Genome localization of PvKSL1 distant from other diterpene synthases, and its phylogenetic distinctiveness from known abietane-forming diterpene synthases, support an independent evolution of PvKSL1 activity. Albeit at low levels, PvKSL1 gene expression predominantly in roots suggests a role of diterpenoid formation in belowground tissue. Together, these findings expand the known chemical and functional space of diterpenoid metabolism in monocot crops.","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142003229","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

First line of defence: Eucalyptus leaf waxes influence infection by an aggressive fungal leaf pathogen. 第一道防线：桉树叶蜡影响侵袭性真菌叶片病原体的感染。

IF 4.2 3区生物学

Plant Biology Pub Date : 2024-08-20 DOI: 10.1111/plb.13707

M Solís, S Naidoo, M J Wingfield, J C Joubert, A Hammerbacher

{"title":"First line of defence: Eucalyptus leaf waxes influence infection by an aggressive fungal leaf pathogen.","authors":"M Solís, S Naidoo, M J Wingfield, J C Joubert, A Hammerbacher","doi":"10.1111/plb.13707","DOIUrl":"https://doi.org/10.1111/plb.13707","url":null,"abstract":"Leaf epicuticular waxes provide important anatomical and chemical defences against fungi that infect leaves. In this study we analysed the leaf wax composition of Eucalyptus grandis × Eucalyptus urophylla hybrids with contrasting susceptibilities to Teratosphaeria leaf blight (TLB) caused by Teratosphaeria destructans, one of the most important foliar diseases of Eucalyptus. The Eucalyptus cuticular wax was extracted from non-inoculated and inoculated genotypes with different levels of susceptibility to TLB and analysed by gas chromatography-mass spectrometry. The results showed that a triterpenoid, cycloartenol (CAS), was abundant in a resistant genotype and that hexanedioic acid content increased in the resistant genotypes in response to T. destructans infection. In contrast, palmitic acid was significantly more abundant in the inoculated highly susceptible genotype. In-vitro and in-planta T. destructans spore germination assays with pure compounds, showed that CAS and hexanedioic acid significantly inhibited spore germination. Application of these two compounds to the leaves of a susceptible host also significantly increased resistance to infection. In contrast, palmitic acid promoted spore germination and, when applied to the leaves of a resistant genotype, increased colonization by the pathogen. This is the first study providing insights into differences in the leaf wax composition of hosts with different levels of susceptibility to T. destructans. It also showed that leaf wax compounds can modulate spore germination and, ultimately, host resistance to infection.","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142003231","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

Exogenous stimulation of Tanacetum vulgare roots with pipecolic acid leads to tissue-specific responses in terpenoid composition. 用哌啶醇酸外源刺激丹顶鹤根部会导致萜类成分的组织特异性反应。

IF 4.2 3区生物学

Plant Biology Pub Date : 2024-08-16 DOI: 10.1111/plb.13703

H Rahimova, R Heinen, B Weber, W W Weisser, J-P Schnitzler

{"title":"Exogenous stimulation of Tanacetum vulgare roots with pipecolic acid leads to tissue-specific responses in terpenoid composition.","authors":"H Rahimova, R Heinen, B Weber, W W Weisser, J-P Schnitzler","doi":"10.1111/plb.13703","DOIUrl":"https://doi.org/10.1111/plb.13703","url":null,"abstract":"Tanacetum vulgare L., tansy, is a perennial plant with highly variable terpenoid composition, with mono- and sesquiterpenoids being the most abundant. The high diversity of terpenoids plays an important role in mediating ecological interactions. However, the distribution of terpenoids in different tissues and inducibility of terpenoids in these tissues via biotic stress are poorly understood. We investigated changes in terpenoid profiles and concentrations in different organs following treatment of roots with pipecolic acid (Pip), a non-proteinogenic amino acid that triggers defence responses leading to induce systemic resistance (SAR) in plants. Tansy leaves and midribs contained mainly monoterpenoids, while coarse and fine roots contained mainly sesquiterpenoids. Rhizomes contained terpenoid profiles of both midribs and roots but also unique compounds. Treatment with Pip led to an increase in concentrations of mono- and sesquiterpenoids in all tissues except rhizomes. However, significantly more sesquiterpenoids was formed in root tissues in response to Pip treatment, compared to shoots. The metabolic atlas for terpenoids presented here shows that there is exceptionally strong differentiation of terpenoid patterns and terpenoid content in different tissues of tansy. This, together with differential inducibility by Pip, suggests that the chemical diversity of terpenoids may play an important role in tansy ecological interactions and defence against biotic stressors that feed on below- and aboveground organs.","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141992237","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

The role of melatonin in delaying senescence and maintaining quality in postharvest horticultural products 褪黑激素在延缓园艺产品采后衰老和保持质量方面的作用。

IF 4.2 3区生物学

Plant Biology Pub Date : 2024-08-16 DOI: 10.1111/plb.13706

Y. Liu, J. Xu, X. Lu, M. Huang, W. Yu, C. Li

{"title":"The role of melatonin in delaying senescence and maintaining quality in postharvest horticultural products","authors":"Y. Liu, J. Xu, X. Lu, M. Huang, W. Yu, C. Li","doi":"10.1111/plb.13706","DOIUrl":"10.1111/plb.13706","url":null,"abstract":"The postharvest lifespan of horticultural products is closely related to loss of nutritional quality, accompanied by a rapid decline in shelf life, commercial value, and marketability. Melatonin (MT) application not only maintains quality but also delays senescence in horticultural products. This paper reviews biosynthesis and metabolism of endogenous MT, summarizes significant effects of exogenous MT application on postharvest horticultural products, examines regulatory mechanisms of MT-mediated effects, and provides an integrated review for understanding the positive role of MT in senescence delay and quality maintenance. As a multifunctional molecule, MT coordinates other signal molecules, such as ABA, ETH, JA, SA, NO, and Ca2+, to regulate postharvest ripening and senescence. Several metabolic pathways are involved in regulation of MT during postharvest senescence, including synthesis and signal transduction of plant hormones, redox homeostasis, energy metabolism, carbohydrate metabolism, and degradation of pigment and cell wall components. Moreover, MT regulates expression of genes related to plant hormones, antioxidant systems, energy generation, fruit firmness and colour, membrane integrity, and carbohydrate storage. Consequently, MT could become an emerging and eco-friendly preservative to extend shelf life and maintain postharvest quality of horticultural products.","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":"27 1","pages":"3-17"},"PeriodicalIF":4.2,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141992239","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

Ontogeny and organ-specific steroidal glycoside diversity is associated with differential expression of steroidal glycoside pathway genes in two Solanum dulcamara leaf chemotypes. 本体和器官特异性甾体苷多样性与两种茄科植物叶片化学型中甾体苷途径基因的不同表达有关。

IF 4.2 3区生物学

Plant Biology Pub Date : 2024-08-16 DOI: 10.1111/plb.13704

R A Anaia, I Chiocchio, R Sontowski, B Swinkels, F Vergara, N M van Dam

{"title":"Ontogeny and organ-specific steroidal glycoside diversity is associated with differential expression of steroidal glycoside pathway genes in two Solanum dulcamara leaf chemotypes.","authors":"R A Anaia, I Chiocchio, R Sontowski, B Swinkels, F Vergara, N M van Dam","doi":"10.1111/plb.13704","DOIUrl":"https://doi.org/10.1111/plb.13704","url":null,"abstract":"Solanaceous plants, such as Solanum dulcamara, produce steroidal glycosides (SGs). Leaf SG profiles vary among S. dulcamara individuals, leading to distinct phytochemical phenotypes ('chemotypes') and intraspecific phytochemical diversity ('chemodiversity'). However, if and how SG chemodiversity varies among organs and across ontogeny, and how this relates to SG metabolism gene expression is unknown. Among organs and across ontogeny, S. dulcamara plants with saturated (S) and unsaturated (U) SG leaf chemotypes were selected and clonally propagated. Roots, stems and leaves were harvested from vegetative and flowering plants. Extracts were analysed using untargeted LC-MS. Expression of candidate genes in SG metabolism (SdGAME9, SdGAME4, SdGAME25, SdS5αR2 and SdDPS) was analysed using RT-qPCRs. Our analyses showed that SG chemodiversity varies among organs and across ontogeny in S. dulcamara; SG richness (Dmg) was higher in flowering than vegetative plants. In vegetative plants, Dmg was higher for leaves than for roots. Lack of SdGAME25 expression in U-chemotype leaves, while readily expressed in roots and stems, suggests a pivotal role for SdGAME25 in differentiation of leaf chemotypes in vegetative and flowering plants. By acting as an ontogeny-dependent chemotypic switch, differential regulation of SdGAME25 enables adaptive allocation of SGs, thereby increasing SG chemodiversity in leaves. This indicates that differential expression and/or regulation of glycoalkaloid metabolism genes, rather than their presence or absence, explains observed chemotypic variation in SG chemodiversity among organs and across ontogeny.","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141992238","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

Immunocytochemical evaluation of aquaporins and cell wall components and their influence on foliar water uptake in Andean Melastomataceae 安第斯地区 Melastomataceae 植物水汽素和细胞壁成分的免疫细胞化学评估及其对叶片水分吸收的影响。

IF 4.2 3区生物学

Plant Biology Pub Date : 2024-08-14 DOI: 10.1111/plb.13700

D. Boanares, J. M. Posada-Herrera, G. P. P. Bragança, I. A. Arriola, C. F. Caldeira, L. E. N. da Costa, M. Gastauer, M. G. C. França, R. M. d. S. Isaias

引用次数: 0

Analysis of chemical and genetic variability in wild hop (Humulus lupulus L.) populations of Kosovo. 科索沃野生啤酒花（Humulus lupulus L.）种群的化学和遗传变异分析。

IF 4.2 3区生物学

Plant Biology Pub Date : 2024-08-01 DOI: 10.1111/plb.13699

B Salihu, T Samarakoon, B Pulaj, C L Quave, B Mustafa, A Hajdari

{"title":"Analysis of chemical and genetic variability in wild hop (Humulus lupulus L.) populations of Kosovo.","authors":"B Salihu, T Samarakoon, B Pulaj, C L Quave, B Mustafa, A Hajdari","doi":"10.1111/plb.13699","DOIUrl":"https://doi.org/10.1111/plb.13699","url":null,"abstract":"Hops is an economically important species due to its diverse secondary metabolites and extensive use in the brewing and medicinal industries. Although hops is widely distributed in Kosovo, the chemical composition of its essential oils and genetic variability of wild populations remain understudied. Therefore, this study aimed to evaluate the chemical and genetic variability of Kosovo's wild hop population using essential oil constituents and microsatellite (simple sequence repeat - SSR) markers. Female hop inflorescences were collected from 21 wild populations in Kosovo. Essential oils were extracted from the dried plant material using a Clevenger apparatus. Chemical composition of the essential oils was analysed using GC-FID-MS. DNA was extracted from dried leaves, and 15 SSR markers were used for fragment analysis. The main constituents of the essential oil were myrcene, α-humulene, (E)-β-farnesene, α-selinene, β-selinene, and E-caryophyllene. Statistical analyses based on chemical composition of essential oils and SSR markers highlighted the low variability among populations and high variability within populations. These findings provide valuable insights for developing strategies for potential use and conservation of wild hop populations in Kosovo, laying the groundwork for future research and comparison with commercial cultivars to assess their breeding potential.","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141858466","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

Settling moth pollination of a rare orchid in the Habenaria clade revealed with close-focusing camera traps 利用近焦相机陷阱揭示了一种罕见兰科植物的定居蛾授粉现象。

IF 4.2 3区生物学

Plant Biology Pub Date : 2024-07-24 DOI: 10.1111/plb.13696

S. D. Johnson, M. G. Balducci

引用次数: 0