Carla S. Pimentel, Elsa V. Gonçalves, João Campôa, Teresa Calvão, Matthew P. Ayres, Otília Correia, Cristina Máguas
{"title":"Ecogeographical determinants of investment in chemical defences in pines","authors":"Carla S. Pimentel, Elsa V. Gonçalves, João Campôa, Teresa Calvão, Matthew P. Ayres, Otília Correia, Cristina Máguas","doi":"10.1007/s00468-022-02354-5","DOIUrl":null,"url":null,"abstract":"<div><h3>Key message</h3><p>\n <b>Pine tree species exhibit significant levels of phenotypic variation in the investment in defences, which can be correlated with life-history traits, geographical affiliations and climate.</b>\n </p><h3>Abstract</h3><p>\nUnderstanding the ecological and environmental correlates of tree defences has value for understanding forest susceptibility to pests and pathogens in a time of global change. In the present work, we assessed how life-history attributes and biogeography are related to chemical defences of pine trees in Palaearctic and Nearctic forests. We studied adult trees of ten pine species in forests of Portugal and Eastern North America. We measured total phenols (using gallic acid as a standard) and condensed tannins (as catechin hydrate equivalents) in the phloem of pine branches. Pine trees in forests of Eastern North America presented higher levels of total phenolic content in their phloem tissues than pine trees in forests in Portugal. Higher values of precipitation were correlated with higher phenolic content and higher temperatures were associated with higher levels of condensed tannins. A few life-history traits—the maximum height reached by each pine species, the age at which they start reproducing, and the size of seeds—were positively related with defences. The present work points to interactions between life-history attributes, climate, and geographic location as predictors of defensive investment in pines. The results are useful for understanding differences within and among pine forests in susceptibility to pests and pathogens.</p></div>","PeriodicalId":805,"journal":{"name":"Trees","volume":"37 2","pages":"361 - 372"},"PeriodicalIF":2.1000,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Trees","FirstCategoryId":"2","ListUrlMain":"https://link.springer.com/article/10.1007/s00468-022-02354-5","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"FORESTRY","Score":null,"Total":0}
引用次数: 0
Key message
Pine tree species exhibit significant levels of phenotypic variation in the investment in defences, which can be correlated with life-history traits, geographical affiliations and climate.
Abstract
Understanding the ecological and environmental correlates of tree defences has value for understanding forest susceptibility to pests and pathogens in a time of global change. In the present work, we assessed how life-history attributes and biogeography are related to chemical defences of pine trees in Palaearctic and Nearctic forests. We studied adult trees of ten pine species in forests of Portugal and Eastern North America. We measured total phenols (using gallic acid as a standard) and condensed tannins (as catechin hydrate equivalents) in the phloem of pine branches. Pine trees in forests of Eastern North America presented higher levels of total phenolic content in their phloem tissues than pine trees in forests in Portugal. Higher values of precipitation were correlated with higher phenolic content and higher temperatures were associated with higher levels of condensed tannins. A few life-history traits—the maximum height reached by each pine species, the age at which they start reproducing, and the size of seeds—were positively related with defences. The present work points to interactions between life-history attributes, climate, and geographic location as predictors of defensive investment in pines. The results are useful for understanding differences within and among pine forests in susceptibility to pests and pathogens.
期刊介绍：
Trees - Structure and Function publishes original articles on the physiology, biochemistry, functional anatomy, structure and ecology of trees and other woody plants. Also presented are articles concerned with pathology and technological problems, when they contribute to the basic understanding of structure and function of trees. In addition to original articles and short communications, the journal publishes reviews on selected topics concerning the structure and function of trees.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
