Physiological, elemental, and stable isotope responses of the organs of mungbean to reduced atmospheric pressure

文献类型： 外文期刊

第一作者： Zhao, Yan

作者： Zhao, Yan;Wang, Donghua;Yang, Shuming;Guo, Bin;Guo, Bin;Liang, Kehong

作者机构：

关键词： Vigna radiata;Carbon isotope;Nitrogen isotope;Antoxidative enzyme;Hypobaric condition

期刊名称：IN VITRO CELLULAR & DEVELOPMENTAL BIOLOGY-PLANT （ 影响因子：2.252； 五年影响因子：2.139 ）

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收录情况： SCI

摘要： The effects of hypobaric conditions on stable isotope and mineral element concentrations during the germination of mungbean [Vigna radiata (Linn.) Wilczek] were evaluated. Mungbean seeds were cultured in lower atmospheric pressure (60 kPa) and normal air pressure (101 kPa) conditions, respectively. Oxygen and carbon dioxide partial pressures were maintained at 21 and 0.04 kPa, respectively. At 60 kPa, the fresh weight (FW) and dry weight (DW) of plants significantly increased by 5.41 and 9.62%, respectively, compared to those at 101 kPa after culturing for 7 d. Twelve mineral elements were compared among three organs (leaf, stem, and root) from seedlings grown under hypobaric and normal atmospheric conditions. This showed that lower air pressure generally improved element accumulation in the plant. A significantly lower value of delta C-13 was observed at 60 kPa compared to that at 101 kPa. In addition, a significant increase in delta N-15 value was detected in three different organs of plants grown under 60 kPa. Our survey provides a foundation for future field and laboratory studies on the influence of air pressure on plants, particularly in terms of stable isotope and mineral elements.

分类号： Q94

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