Comprehensive report on the Auxin Transport space experiment: the analysis of gravity response and attitude control mechanisms of plants under microgravity conditions in space on the International Space Station

Uchu Seibutsu Kagaku Pub Date : 2020-01-01 DOI:10.2187/bss.34.12

J. Ueda

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引用次数: 3

Abstract

The present paper is a comprehensive report on the Auxin Transport space experiment: the analysis of gravity response and attitude control mechanisms of plants under microgravity conditions in space on the International Space Station. The Auxin Transport space experiment was conducted in 2016 and 2017 in the Japanese Experiment Module (JEM) on the International Space Station (ISS), with the principal objective being integrated analyses of the growth and development of etiolated pea ( Pisum sativum L. cv Alaska) and maize ( Zea mays L. cv Golden Cross Bantam) seedlings under true microgravity conditions in space relative to polar auxin transport. To clarify auxin dynamics at molecular levels, gene expression of PsPIN1 and ZmPIN1a mRNA, and their products detected by immunohistochemistry were also investigated. In addition, the use of microarray data technology with Medicago ( Medicago truncatula ) microarrays to characterize global changes in the transcript abundance of etiolated Alaska pea seedlings grown under microgravity conditions in comparison with those under artificial 1 G conditions on the International Space Station was reported here. Comprehensive analyses of endogenous plant hormones in etiolated pea and maize seedlings grown under microgravity conditions in space as well as on 1 G conditions on Earth have already performed in the space experiment. ©2020 Jpn. Soc. Biol. Sci. Space; doi:10.2187/bss.34.12

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生长素运输空间实验综合报告:国际空间站空间微重力条件下植物重力响应及姿态控制机制分析

本文综合报道了在国际空间站上进行的生长素运输空间实验:空间微重力条件下植物的重力响应和姿态控制机制分析。生长素运输空间实验于2016年和2017年在国际空间站(ISS)的日本实验舱(JEM)进行，主要目的是综合分析黄化豌豆(Pisum sativum L. cv Alaska)和玉米(Zea mays L. cv Golden Cross Bantam)幼苗在真实微重力条件下的生长发育与极地生长素运输的关系。为了阐明生长素在分子水平上的动态，我们还研究了PsPIN1和ZmPIN1a mRNA的基因表达及其免疫组织化学检测的产物。此外，本文还报道了利用微阵列数据技术与Medicago (Medicago truncatula)微阵列来表征在微重力条件下生长的黄化阿拉斯加豌豆幼苗转录本丰度的全球变化，并将其与在国际空间站人工1g条件下生长的豌豆幼苗进行了比较。在空间实验中，已经对在空间微重力条件下以及在地球1g条件下生长的黄化豌豆和玉米幼苗的内源植物激素进行了全面分析。©2020日本。Soc。医学杂志。科学。空间;doi: 10.2187 / bss.34.12

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Uchu Seibutsu Kagaku

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