Variation in root functional traits of Neotropical epiphytic and terrestrial orchids along an elevational gradient

IF 2.3 2区 生物学 Q2 PLANT SCIENCES
Katrijn De Bock, Hans Jacquemyn, Nhora H Ospina-Calderón, Nicola S Flanagan, Agustina Ventre-Lespiaucq
{"title":"Variation in root functional traits of Neotropical epiphytic and terrestrial orchids along an elevational gradient","authors":"Katrijn De Bock, Hans Jacquemyn, Nhora H Ospina-Calderón, Nicola S Flanagan, Agustina Ventre-Lespiaucq","doi":"10.1093/botlinnean/boae040","DOIUrl":null,"url":null,"abstract":"Assessing variation in root functional traits may offer novel insights into plant adaptations to changing environmental conditions. However, such studies, particularly on epiphytic species in tropical ecosystems, are still limited. Previous research has suggested that precipitation has a major impact on epiphyte survival and thus can be considered a candidate driver of epiphytic root trait variation, though compelling evidence is lacking. In this study, we investigated variation in 19 root functional traits in 43 epiphytic (36 species) and 14 terrestrial (7 species) orchids along an elevational gradient in Colombia and examined whether this variation is associated with differences in abiotic conditions. Contrary to previous studies, our findings did not associate trait variation with precipitation but revealed strong correlations with solar radiation, temperature, and water vapour pressure. The variation was particularly pronounced in traits related to the velamen radicum. Epiphytic and terrestrial orchids showed similar responses despite their different growth habits. Overall, these patterns suggest that higher sunlight and temperature conditions lead both orchid types to allocate more resources to root structures that mitigate abiotic stress, and highlight the role of other environmental factors in driving root trait variability.","PeriodicalId":9178,"journal":{"name":"Botanical Journal of the Linnean Society","volume":"25 1","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Botanical Journal of the Linnean Society","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1093/botlinnean/boae040","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0

Abstract

Assessing variation in root functional traits may offer novel insights into plant adaptations to changing environmental conditions. However, such studies, particularly on epiphytic species in tropical ecosystems, are still limited. Previous research has suggested that precipitation has a major impact on epiphyte survival and thus can be considered a candidate driver of epiphytic root trait variation, though compelling evidence is lacking. In this study, we investigated variation in 19 root functional traits in 43 epiphytic (36 species) and 14 terrestrial (7 species) orchids along an elevational gradient in Colombia and examined whether this variation is associated with differences in abiotic conditions. Contrary to previous studies, our findings did not associate trait variation with precipitation but revealed strong correlations with solar radiation, temperature, and water vapour pressure. The variation was particularly pronounced in traits related to the velamen radicum. Epiphytic and terrestrial orchids showed similar responses despite their different growth habits. Overall, these patterns suggest that higher sunlight and temperature conditions lead both orchid types to allocate more resources to root structures that mitigate abiotic stress, and highlight the role of other environmental factors in driving root trait variability.
新热带附生兰和陆生兰的根部功能特征沿海拔梯度的变化
评估根系功能特征的变异可为植物适应不断变化的环境条件提供新的见解。然而,此类研究,尤其是针对热带生态系统中附生物种的研究仍然有限。以前的研究表明,降水对附生植物的生存有重大影响,因此可以认为降水是附生植物根系性状变异的一个候选驱动因素,但目前还缺乏令人信服的证据。在这项研究中,我们沿哥伦比亚的海拔梯度调查了 43 种附生兰(36 种)和 14 种陆生兰(7 种)19 种根系功能特征的变异,并研究了这种变异是否与非生物条件的差异有关。与之前的研究相反,我们的研究结果显示性状变异与降水量无关,但与太阳辐射、温度和水蒸气压力有很强的相关性。与茸毛有关的性状变异尤其明显。附生兰和陆生兰尽管生长习性不同,但却表现出相似的反应。总之,这些模式表明,较高的日照和温度条件会导致这两种类型的兰花将更多的资源分配给根部结构,以减轻非生物压力,同时也突出了其他环境因素在驱动根部性状变异中的作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
CiteScore
5.70
自引率
8.30%
发文量
54
审稿时长
3.5 months
期刊介绍: The Botanical Journal of the Linnean Society publishes original papers on systematic and evolutionary botany and comparative studies of both living and fossil plants. Review papers are also welcomed which integrate fields such as cytology, morphogenesis, palynology and phytochemistry into a taxonomic framework. The Journal will only publish new taxa in exceptional circumstances or as part of larger monographic or phylogenetic revisions.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信