Effects of soil moisture content on the growth and physiological status of ginger (Zingiber officinale Roscoe)
Effects of soil moisture content on the growth and physiological status of ginger (Zingiber officinale Roscoe)
复制标题
土壤含水量对生姜生长及生理状态的影响
DOI：
10.1007/s11738-018-2698-4
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发表时间：
2018-07-01
影响因子：
2.6
通讯作者：
Jiang, Yusong
中科院分区：
文献类型：
--
作者：
Li, Honglei;Huang, Mengjun;Jiang, Yusong
生姜(Zingiber Office Inale Roscoe)是姜科最有价值的经济作物之一，在世界各地被用作饮料、烘焙、糖果和制药行业的香料和调味剂。土壤水分是制约生姜栽培的重要因素之一。本文测定了不同土壤水分条件下生姜内源激素代谢关键酶的表型、生理生化及编码基因的表达差异。结果表明，随着土壤水分的增加，药用泽兰的分株数量逐渐增加，在40%湿度下，分株数量增加到26.7 ± 3.7℃。相对湿度为25%时，茎高、茎粗和相对叶绿素含量最高。同样，超氧化物歧化酶(SOD)和过氧化物酶(POD)活性以及脱落酸(ABA)和乙烯(Eth)含量在25%湿度下保持较低水平，而在较低湿度(10%)和较高水分(30-40%)水平下相对较高。此外，还分析了参与ABA合成和乙烯代谢的关键酶编码基因的表达模式，以阐明土壤水分对生姜栽培的影响。结果表明，这些基因的表达与不同土壤水分水平下ABA和Eth的变化规律一致。综上所述，土壤水分对药用植物生长有显著影响，25%的土壤湿度对药用植物生长较为适宜。
Ginger (Zingiber officinale Roscoe), one of the most valuable economic plants from the Zingiberaceae family, is used worldwide as a spice and flavoring agent in the beverage, bakery, confectionary, and pharmaceutical industries. Soil moisture is one of the most important constraints in ginger cultivation. In the present paper, the phenotype, physiology, biochemistry, and expression difference of genes coding for key enzyme for endogenous hormone metabolism in ginger under different soil moisture conditions (water-filled pore space, WFPS) were measured. Our results indicated that with the increase of soil moisture content, the ramet number of Z. officinale gradually increased, and the ramet number increased to 26.7 ± 3.7 at 40% humidity. However, the stem height, stem diameter, and the relative chlorophyll content were highest at 25% humidity. Similarly, the activities of superoxide dismutase (SOD) and peroxidase (POD) as well as the contents of abscisic acid (ABA) and ethylene (Eth) content remained relatively low at 25% humidity, whereas they were relatively high at lower moisture (10%) and higher moisture (30–40%) levels. In addition, the expression patterns of key enzyme-coding genes involved in ABA synthesis and Eth metabolism were analyzed to elucidate the effect of soil moisture on ginger cultivation. The results showed that the expression of the genes were in accordance with the variation of ABA and Eth under different soil moisture levels. In sum, soil moisture significantly affects the growth of Z. officinale, and 25% soil humidity is suitable for the growth of Z. officinale.