Stage-Specific Characterization of Physiological Response to Heat Stress in the Wheat Cultivar Norin 61.
Stage-Specific Characterization of Physiological Response to Heat Stress in the Wheat Cultivar Norin 61.
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DOI：
10.3390/ijms22136942
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发表时间：
2021-06-28
影响因子：
5.6
通讯作者：
Tsujimoto H
中科院分区：
文献类型：
--
作者：
Matsunaga S;Yamasaki Y;Toda Y;Mega R;Akashi K;Tsujimoto H
面包小麦（Triticum aestivum）比其他主要谷物对高温的适应性差。以往关于高温对小麦影响的研究主要集中在生殖生长阶段。在其他生长阶段高温后产量的报道很少。了解特定生长阶段对热胁迫的反应将有助于开发适合不同阶段高温的耐受品系。以冬小麦品种“北林61”为试材，在苗期分蘖期（GS1）、分蘖开花期（GS2）和开花成熟期（GS3）进行高温处理。我们根据农艺性状、种子成熟度和光合作用结果比较了每种条件。GS2的高温降低了株高和籽粒数，GS3的高温降低了籽粒形成期和粒重。然而，在GS1的热量减少衰老和延长籽粒形成，增加粒重而不降低产量。这些数据为面包小麦对高温胁迫的生物化学和分子适应提供了基本见解，并对一年中不同时期能够应对高温的小麦品系的发展产生了影响。
Bread wheat (Triticum aestivum) is less adaptable to high temperatures than other major cereals. Previous studies of the effects of high temperature on wheat focused on the reproductive stage. There are few reports on yield after high temperatures at other growth stages. Understanding growth-stage-specific responses to heat stress will contribute to the development of tolerant lines suited to high temperatures at various stages. We exposed wheat cultivar “Norin 61” to high temperature at three growth stages: seedling–tillering (GS1), tillering–flowering (GS2), and flowering–maturity (GS3). We compared each condition based on agronomical traits, seed maturity, and photosynthesis results. Heat at GS2 reduced plant height and number of grains, and heat at GS3 reduced the grain formation period and grain weight. However, heat at GS1 reduced senescence and prolonged grain formation, increasing grain weight without reducing yield. These data provide fundamental insights into the biochemical and molecular adaptations of bread wheat to high-temperature stresses and have implications for the development of wheat lines that can respond to high temperatures at various times of the year.
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影响因子：
7.4
作者：
Rivero, Rosa M.;Shulaev, Vladimir;Blumwald, Eduardo
通讯作者：
Blumwald, Eduardo
DOI：
10.1007/s00122-018-3102-x
发表时间：
2018-08
期刊：
TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
影响因子：
--
作者：
Gorafi YSA;Kim JS;Elbashir AAE;Tsujimoto H
通讯作者：
Tsujimoto H
影响因子：
3.7
作者：
Balla, Krisztina;Karsai, Ildiko;Veisz, Otto
通讯作者：
Veisz, Otto
影响因子：
64.8
作者：
Ito, Hidetaka;Gaubert, Herve;Paszkowski, Jerzy
通讯作者：
Paszkowski, Jerzy
影响因子：
1.3
作者：
Hasegawa, Toshihiro;Ishimaru, Tsutomu;Fukuoka, Minehiko
通讯作者：
Fukuoka, Minehiko