PEG和ABA对玉兰干燥耐受性和贮藏性能的影响Spreng。种子

IF 1.1 4区农林科学 Q3 AGRONOMY

Journal of Seed Science Pub Date : 2022-01-01 DOI:10.1590/2317-1545v44256114

F. Pelissari, W. Pereira, T. M. Pereira, H. Santos, J. Faria, A. José

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引用次数: 2

摘要

摘要/ Abstract摘要:一些研究已经成功地利用聚乙二醇(PEG)和/或脱落酸(ABA)诱导了正统植物发芽种子的干燥耐受性，提高了我们对这一特性的机制的理解。在此背景下，研究了PEG和ABA处理在降低白玉兰种子干燥敏感性和延长种子贮藏期方面的效果。10%水分干燥对种子萌发无显著影响，ABA处理对种子萌发无显著影响。但PEG处理的种子活力较低。贮藏后，含水量低至5% (WC)的ABA处理的种子萌发率较高，100µM ABA处理的种子储存容量最大。过氧化氢酶、过氧化物酶或超氧化物歧化酶的活性以及总蛋白或耐热蛋白的丰度均未发生变化。

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Effect of PEG and ABA on desiccation tolerance and storage of Magnolia ovata (A.St.-Hil.) Spreng. Seeds

Abstract: Several studies have successfully used polyethylene glycol (PEG) and/or abscisic acid (ABA) to reinduce desiccation tolerance in germinated seeds of orthodox species, improving our understanding of the mechanisms that underlie this trait. In this context, treatments with PEG and ABA were tested to assess their efficiency in reducing the sensitivity to desiccation and increasing the storage period of Magnolia ovata seeds. The drying of seeds to 10% water did not significantly affect germination, nor was germination impaired in seeds that were dried and treated with ABA. However, seeds treated with PEG had lower viability. After storage, ABA-treated seeds with as low as 5% water content (WC) had higher germination rates, the treatment with 100 µM ABA providing the greatest storage capacity. No changes were observed in the activity of catalase, peroxidase, or superoxide dismutase or in the abundance of total or heat-resistance proteins.

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来源期刊

Journal of Seed Science Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

2.00

自引率

30.00%

发文量

审稿时长

12 weeks

期刊介绍： From 2017 the Journal of Seed Science (JSS) will circulate online version only. Original scientific studies and communications, not yet published or submitted to another journal for publication and written in Portuguese or English, will be accepted for publication. For manuscripts submitted in English, the authors should provide an adequated version. The SCIENTIFIC COMMUNICATION is a category of scientific manuscript which describes a technique, an equipment, new species or observations and surveys of limited results. It has the same scientific rigor as the “Scientific Articles” and the same value as a publication. The classification of a manuscript as a SCIENTIFIC COMMUNICATION is based on its content and scientific merit but it can be a preliminary study, simple and not definitive on a certain subject, with publication justified by its uniqueness and contribution to the area. The Editorial Board of the JSS may invite leading authors of recognized reputation to compose specific Review Articles covering topics of their specialization that will convey to the scientific community the state-of-the-art knowledge related to the specific theme.