Circumnutation and Growth of Inflorescence Stems of Arabidopsis thaliana in Response to Microgravity under Different Photoperiod Conditions
Circumnutation and Growth of Inflorescence Stems of Arabidopsis thaliana in Response to Microgravity under Different Photoperiod Conditions
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不同光周期条件下拟南芥花序茎对微重力的响应与生长
DOI：
10.3390/life10030026
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发表时间：
2020-03
期刊：
影响因子：
--
通讯作者：
Huiqiong Zheng
中科院分区：
文献类型：
--
作者：
Yuanyuan Wu;Junyan Xie;Lihua Wang;Huiqiong Zheng
旋转运动是一种周期性的生长运动，是植物适应生长环境的重要生理机制。重力和光周期是调节植物回旋运动的两个关键环境因子，但它们之间的协调机制尚不清楚。本研究在中国返回式卫星SJ-10和中国空间实验室TG-2上对拟南芥花序、茎的旋转运动进行了研究。在两种光周期条件下[长日（LD）光：暗周期为16：8 h，短日（SD）光：暗周期为8：16 h]，在特殊的植物培养室中培养植物。植物的生长和运动由两个电荷耦合器件（CCD）相机跟踪。该参数揭示了在LD和SD条件下对TG-2和SJ-10的每日（24小时）调节。与LD条件相比，SD条件下微重力对回旋运动的抑制作用更明显，说明微重力与光周期的联合作用对空间回旋运动有协同效应。此外，还有一种亚昼夜节律（infradian rhythm）。21天）。
Circumnutation is a periodic growth movement, which is an important physiological.mechanism of plants to adapt to their growth environments. Gravity and photoperiod are two key.environmental factors in regulating the circumnutation of plants, but the coordination mechanism.between them is still unknown. In this study, the circumnutation of Arabidopsis thaliana inflorescence.stems was investigated on board the Chinese recoverable satellite SJ-10 and the Chinese spacelab.TG-2. Plants were cultivated in a special plant culture chamber under two photoperiod conditions [a.long-day (LD) light: dark cycle of 16:8 h, and a short-day (SD) light: dark cycle of 8:16 h]. The plant.growth and movements were followed by two charge-coupled device (CCD) cameras. The parameter.revealed a daily (24 h) modulation on both TG-2 and SJ-10, under both the LD and the SD conditions..The inhibition of circumnutation was more apparent by microgravity under the SD in comparison.with that under the LD condition, suggesting the synergistic eects of the combined microgravity.and photoperiod on the circumnutation in space. In addition, an infradian rhythm (ca. 21 days long).on the TG-2 was also observed.
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DOI：
10.1007/978-981-13-6325-2_2
发表时间：
2019
期刊：
Physical Science Under Microgravity: Experiments on Board the SJ-10 Recoverable Satellite
影响因子：
--
作者：
Huiguang Zhao;Jiawen Qiu;Wang Ying
通讯作者：
Huiguang Zhao;Jiawen Qiu;Wang Ying
TG-2空间实验室微重力条件下水稻幼苗光周期控制的发育与生长
影响因子：
1.8
作者：
Lihua Wang;Fei Han;Huiqiong Zheng
通讯作者：
Huiqiong Zheng
影响因子：
5.2
作者：
A. Olovnikov
通讯作者：
A. Olovnikov
影响因子：
2.5
作者：
S. Andersson;L. Kautsky;A. Kalvas
通讯作者：
S. Andersson;L. Kautsky;A. Kalvas
影响因子：
2.6
作者：
M. Stolarz;H. Dziubińska
通讯作者：
M. Stolarz;H. Dziubińska