建立一种新的多变量发芽指数来量化种子水化记忆。

IF 3.4 3区 生物学 Q1 PLANT SCIENCES Plant Biology Pub Date : 2026-04-17 Epub Date: 2025-02-03 DOI:10.1111/plb.13766
A. T. Lima, T. S. Almeida, D. G. de Santana, M. V. Meiado
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引用次数: 0

摘要

近几十年来,记忆的概念在植物生态生理学研究中受到了极大的关注。当记忆在萌发期间表达时,它被称为“种子水合记忆”。虽然许多指标涉及到发芽的不同方面,文献缺乏量化种子水化记忆的方法。本研究旨在建立种子萌发记忆指数(GMI);用来量化种子记忆的数学工具。GMI可以比较不同的本地或栽培物种在不连续水化后的各种条件下发芽。我们使用了一项实验的数据来测试GMI,该实验评估了在水合和脱水循环(HD循环)后遭受水分亏缺的蜡状仙人掌种子的萌发。该指数是通过种子不连续水化得到的发芽率,即达到50%发芽率的时间,平均发芽率,发芽均匀性,同步性和发芽不确定性的算术平均值。内存的取值范围为0≤GMI≤1。与参考值相比,HD循环提高了发芽量、发芽率和同步性,同时减少了达到50%发芽率、均匀性和不确定性所需的时间。当GMI≤0时出现记忆缺失,表明萌发过程不经历HD循环是有利的。当不连续水化后萌发时,GMI = 1。利用GMI,我们可以准确地衡量HD周期提供的萌发行为的增益,因为该指数不仅反映了萌发能力的变化,还反映了萌发时间、速度、均匀性、同步性和不确定性的变化。
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Development of a novel multivariate germination index to quantify seed hydration memory

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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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