Ca2+进入胚胎的速率可以用来评价玉米种子的活力水平

IF 4.6 3区 农林科学 Q1 FOOD SCIENCE & TECHNOLOGY Quality Assurance and Safety of Crops & Foods Pub Date : 2020-06-10 DOI:10.15586/qas.v12i2.641
P. Zhu, X. Song, Y. Mao, Y. Li, C. Zhang
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引用次数: 2

摘要

种子活力是一个重要的性状,经常被用来评价种子质量。快速准确地评价种子活力对农业生产非常重要。Ca是植物中一种重要的次生信使,通过Ca向细胞质的流动来响应各种生物和非生物刺激。然而,据我们所知,尚未发表关于种子活力和Ca流入的报告。在本研究中,我们以两个杂交玉米(Zea mays L.)系及其相应的母本系为材料,进行老化和“老化+引发”处理,获得不同活力水平的种子。在种子吸收24小时后,使用非侵入性微测试技术(NMT)将完整的种子或胚胎用作测定Ca流入率的材料。结果表明,以完整胚胎为材料,Ca内流率具有较高的稳定性和数值。相关分析表明,地上部干重活力指数与Ca入胚率呈显著的正相关。结果表明,Ca内流率可以用来评价玉米种子的活力水平。
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The flux rate of Ca2+ into embryo can be used to evaluate the vigour level of maize seeds
Seed vigour is an important trait and is often used to evaluate seed quality. A rapid and accurate evaluation of seed vigour is very important for agricultural production. Ca is an important secondary messenger in plants, responding to various biotic and abiotic stimuli by Ca flux into cytoplasm. To the best of our knowledge, however, no report has been published about seed vigour and Ca influx. In this study, we used two hybrid maize (Zea mays L.) lines and their corresponding female parent lines as materials, and performed ageing and ‘ageing + priming’ treatments to obtain seeds with different vigour levels. After seeds were imbibed for 24 h, the intact seeds or embryos were used as materials for determining the Ca influx rate using non-invasive micro-test technique (NMT). Results showed that, with the intact embryos as materials, the Ca influx rate showed higher stability and higher values. Correlation analysis indicated that there was a significant, positive linear correlation between the shoot dry weight vigour index and Ca flux rate into embryo. The results demonstrated that the Ca influx rate can be used to evaluate the vigour levels of maize seeds.
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来源期刊
CiteScore
4.60
自引率
7.50%
发文量
61
审稿时长
1 months
期刊介绍: ''Quality Assurance and Safety of Crops & Foods'' is an international peer-reviewed journal publishing research and review papers associated with the quality and safety of food and food sources including cereals, grains, oilseeds, fruits, root crops and animal sources. It targets both primary materials and their conversion to human foods. There is a strong focus on the development and application of new analytical tools and their potential for quality assessment, assurance, control and safety. The scope includes issues of risk assessment, traceability, authenticity, food security and socio-economic impacts. Manuscripts presenting novel data and information that are likely to significantly contribute to scientific knowledge in areas of food quality and safety will be considered. ''Quality Assurance and Safety of Crops & Foods'' provides a forum for all those working in the specialist field of food quality and safety to report on the progress and outcomes of their research.
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