内吞作用
小泡
胞饮病
生物
细胞内
食肉植物
植物
化学
生物化学
捕食
生态学
细胞
膜
作者
Caroline Ivesic,Stefanie Krammer,Marianne Koller-Peroutka,Aicha Laarouchi,Daniela Gruber,Ingeborg Lang,Irene K. Lichtscheidl,Wolfram Adlassnig
出处
期刊:Plants
[MDPI AG]
日期:2023-01-11
卷期号:12 (2): 341-341
被引量:3
标识
DOI:10.3390/plants12020341
摘要
Carnivorous plants adsorb prey-derived nutrients partly by endocytosis. This study quantifies endocytosis in Drosophyllum lusitanicum, Drosera capensis, Drosera roseana, Dionaea muscipula and Nepenthes × ventrata. Traps were exposed to 1% fluorescent-labeled albumin (FITC-BSA), and uptake was quantified repeatedly for 64 h. Formation of vesicles started after ≤1 h in adhesive traps, but only after 16 h in species with temporary stomach (D. muscipula and N. × ventrata). In general, there are similarities in the observed species, especially in the beginning stages of endocytosis. Nonetheless, further intracellular processing of endocytotic vesicles seems to be widely different between species. Endocytotic vesicle size increased significantly over time in all species except in D. capensis. Fluorescence intensity of the endocytotic vesicles increased in all species except D. muscipula. After 64 h, estimates for FITC-BSA absorption per gland ranged from 5.9 ± 6.3 ng in D. roseana to 47.8 ± 44.3 ng in N. × ventrata, demonstrating that endocytosis substantially contributes to the adsorption of prey-derived nutrients.
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