期刊
JOURNAL OF PLANT INTERACTIONS
卷 17, 期 1, 页码 956-966出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/17429145.2022.2123567
关键词
Carnivorous plants; digestion; dissolved minerals; nepenthes; pH; symbionts
资金
- Graduate Research Fellowship from the Department of Organismic and Evolutionary Biology, Harvard University
- USDA-NIFA Postdoctoral Research Fellowship [201967012-29872]
- Laidlaw Foundation
This study investigates the natural variation in pH and dissolved mineral concentrations in tropical pitcher plants, and reveals correlations between fluid properties and pitcher traits. N. gracilis and N. rafflesiana show distinct patterns in fluid pH and dissolved mineral levels, while N. ampullaria exhibits less variation in fluid pH.
Tropical pitcher plants (Nepenthes) are carnivorous plants that trap and digest prey using highly modified fluid-filled leaves known as pitchers. Prey are digested by plant-secreted enzymes and pitcher symbionts. Pitchers exert control over abiotic properties of the digestive fluid such as pH levels that can influence its symbionts. Here we examine natural variation in pH and dissolved mineral concentrations in three sympatric Nepenthes species, assessing correlations between fluid properties and pitcher traits. We use addition experiments to investigate differences in protein digestion/absorption rates between species. Fluid pH and dissolved mineral levels both showed distinct patterns corresponding to pitcher developmental stages in N. gracilis and N. rafflesiana, whereas N. ampullaria differs from its congeners in exhibiting far less variation in fluid pH, as well as less clear evidence of protein depletion. This study further elucidates the properties of pitchers as habitats, revealing ways in which the host plant regulates that habitat.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据