Compartmentalization of specialized metabolites across vegetative and reproductive tissues in two sympatric Psychotria species
Compartmentalization of specialized metabolites across vegetative and reproductive tissues in two sympatric Psychotria species
复制标题
两个同域 Psychotria 物种营养和生殖组织中专门代谢物的区室化
DOI：
10.1002/ajb2.16191
复制
发表时间：
2023
影响因子：
3
通讯作者：
Beckman, Noelle G.
中科院分区：
文献类型：
--
作者：
Schneider, Gerald F.;Carlson, Cole A.;Jos, Elsa M.;Beckman, Noelle G.
植物特殊的代谢产物被认为是介导从授粉到种子捕食的植物-生物相互作用的生态学和进化的关键化学性状。在叶中已经广泛研究了特化代谢物多样性的种内和种间模式，但是有助于特化代谢物多样性的多种生物相互作用涵盖了所有植物器官。专注于两种psychotriashrubs，我们调查和比较模式的专门代谢物的多样性，在叶和果实相对于每个器官的多样性biological interactions.MethodsTo评估生物相互作用的多样性和专门的代谢物多样性之间的关联，我们结合了超高效液相色谱-质谱代谢组学分析叶和果实专门的代谢物与现有的调查叶和水果为中心的生物相互作用。我们比较了营养和生殖组织之间，植物之间，和species.ResultsIn我们的研究system. ResultsIn叶之间的专门的代谢产物丰富度和方差的模式，与更多的消费者物种比水果，而水果为中心的相互作用更生态多样性，因为它们涉及到拮抗和互惠的消费者。以果实为中心的相互作用的这一方面反映在专门的代谢物丰富度上-叶子比果实含有更多，而每个器官含有超过200种器官特异性的专门代谢物。在每个物种内，叶和果实专用代谢物组成在个体植物中彼此独立地变化。在专门的代谢物组成的对比度更强的器官之间比species.ConclusionsAs生态不同的植物器官与器官特异性专门的代谢物性状，叶和果实可以各自贡献的巨大的整体多样性的植物专门的代谢物。
PremiseThe specialized metabolites of plants are recognized as key chemical traits in mediating the ecology and evolution of sundry plant–biotic interactions, from pollination to seed predation. Intra‐ and interspecific patterns of specialized metabolite diversity have been studied extensively in leaves, but the diverse biotic interactions that contribute to specialized metabolite diversity encompass all plant organs. Focusing on two species ofPsychotriashrubs, we investigated and compared patterns of specialized metabolite diversity in leaves and fruit with respect to each organ's diversity of biotic interactions.MethodsTo evaluate associations between biotic interaction diversity and specialized metabolite diversity, we combined UPLC‐MS metabolomic analysis of foliar and fruit specialized metabolites with existing surveys of leaf‐ and fruit‐centered biotic interactions. We compared patterns of specialized metabolite richness and variance among vegetative and reproductive tissues, among plants, and between species.ResultsIn our study system, leaves interact with a far larger number of consumer species than do fruit, while fruit‐centric interactions are more ecologically diverse in that they involve antagonistic and mutualistic consumers. This aspect of fruit‐centric interactions was reflected in specialized metabolite richness—leaves contained more than fruit, while each organ contained over 200 organ‐specific specialized metabolites. Within each species, leaf‐ and fruit‐specialized metabolite composition varied independently of one another across individual plants. Contrasts in specialized metabolite composition were stronger between organs than between species.ConclusionsAs ecologically disparate plant organs with organ‐specific specialized metabolite traits, leaves and fruit can each contribute to the tremendous overall diversity of plant specialized metabolites.