The carnivorous rainbow plant Byblis filifolia Planch. secretes digestive enzymes in response to prey capture independently of jasmonates

IF 3.6 3区 生物学 Q1 PLANT SCIENCES
Plant Biology Pub Date : 2025-05-19 DOI:10.1111/plb.70029
A. Pavlovič, T. Jílková, I. Chamrád, R. Lenobel, O. Vrobel, P. Tarkowski
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引用次数: 0

Abstract

Abstract Image

肉食性彩虹植物比布利亚。分泌消化酶以响应猎物捕获独立于茉莉酸盐。
石竹目食肉植物从一组茉莉酸盐中吸收植物激素来调节消化酶的活性。然而,并不是所有属的食肉植物都被彻底地探索过,澳大利亚食肉彩虹植物Byblis属(Lamiales目)的消化生理学知之甚少。本研究采用液相色谱/质谱法研究了小叶蝉分泌液中消化酶的组成,测定了酶的活性,并分析了实验饲喂果蝇和施用冠状碱后组织中植物激素的水平。在分泌的消化液中发现了几种水解消化酶,其水平在昆虫猎物存在时明显增加。然而,与sundew Drosera capensis相反,内源性茉莉酸不会积累,而茉莉酸的分子模拟物coronatine无法触发酶的分泌。我们的结果表明,B. filifolia是完全肉食性的,有自己的消化酶库。然而,与来自石竹目的肉食性属相比,这些酶不受茉莉酸盐的调节。这表明,在食肉植物的进化过程中,茉莉酸盐并没有被反复选择来调节消化酶的活性。
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来源期刊
Plant Biology
Plant Biology 生物-植物科学
CiteScore
8.20
自引率
2.60%
发文量
109
审稿时长
3 months
期刊介绍: Plant Biology is an international journal of broad scope bringing together the different subdisciplines, such as physiology, molecular biology, cell biology, development, genetics, systematics, ecology, evolution, ecophysiology, plant-microbe interactions, and mycology. Plant Biology publishes original problem-oriented full-length research papers, short research papers, and review articles. Discussion of hot topics and provocative opinion articles are published under the heading Acute Views. From a multidisciplinary perspective, Plant Biology will provide a platform for publication, information and debate, encompassing all areas which fall within the scope of plant science.
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