干旱区生态环境知识资源中心(Arid): 红花岩黄芪(Hedysarum multijugum) 、灌木铁线莲(Clematis fruticosa)和互叶醉鱼草(Buddleja alternifolia)幼苗适应干旱的生理特征比较

Arid

	红花岩黄芪(Hedysarum multijugum) 、灌木铁线莲(Clematis fruticosa)和互叶醉鱼草(Buddleja alternifolia)幼苗适应干旱的生理特征比较
其他题名	Physiological response characteristics of Hedysarum multijugum, Clematis fruticosa and Buddleja alternifolia seedlings to drought in semi-arid region of Northwest China
	张雯莉; 朱恭; 黄文广; 张宇; 王蕾; 罗晓玲; 刘玉冰
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2020
卷号	40 期号:3
中文摘要	以红花岩黄芪(Hedysarum multijugum) 、灌木铁线莲(Clematis fruticosa)和互叶醉鱼草(Buddleja alternifolia)幼苗(3~ 4月龄)为试验材料,分别用水和150 mmol·L~(-1) NaCl溶液浇灌至土壤水分含量达到饱和后进行自然干旱处理,比较分析低盐和无盐条件下3种灌木幼苗叶片抗旱适应的生理响应特征,并采用隶属函数法对3种灌木幼苗的抗旱性进行综合评价。结果表明:随着干旱胁迫时间延长,3种植物叶片的株高和叶面积有所增加,但增幅减少;相对含水量均有不同程度降低,丙二醛 (MDA) 、脯氨酸和可溶性糖含量显著增加;红花岩黄芪和灌木铁线莲的可溶性蛋白含量及超氧化物歧化酶(SOD) 、过氧化物酶(POD) 、过氧化氢酶(CAT)活性先升后降,而互叶醉鱼草则显著升高,抗氧化酶系统相对较为稳定;红花岩黄芪和灌木铁线莲的光合色素含量逐渐减少,而互叶醉鱼草则先增加后减少。无盐和低盐条件相比,低盐下3种植物的株高和叶面积增幅相对较大,叶片相对含水量、MDA含量和光合色素含量的变化幅度较小,渗透调节物质的累积量和抗氧化酶的活性较高。隶属函数法综合分析得出,3种灌木幼苗的抗旱性:互叶醉鱼草>灌木铁线莲>红花岩黄芪,低盐环境明显促进了3种灌木的抗旱适应能力。
英文摘要	Three 3-month-old shrub seedlings,Hedysarum multijugum,Clematis fruticosaand Buddleja alternifolia were selected as the test materials. The shrub seedlings were divided into two groups,which were irrigated with water and 150 mM NaCl solution,and then treated with natural drought after the soil moisture was saturated. The physiological responses of the three shrub seedlings to drought under low salt and no salt conditions were determined,and the drought tolerance of the three shrub seedlings were further comprehensively evaluated with the subordinate functions. Results showed that,with the prolongation of drought stress duration,the height and leaf area of three shrub seedings increased,but the increase decrease,the leaf relative water content all decreased to certain extent,and the malondialdehyde (MDA), proline and soluble sugar contents significantly increased. In addition,the soluble protein content,superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) first increased and then decreased in H. multijugum and C. fruticosa,and significantly increased in B. alternifolia,while the antioxidant enzyme system in B. alternifolia was less varied. The photosynthetic pigment content gradually decreased in H. multijugum and C. fruticosa, and first increased and then decreased in B. alternifolia. In comparison with the salt-free treatment,the height and leaf area of three shrub seedings under low salt treatment increase relatively large,the leaf relative water content,MDA contents and photosynthetic pigment content of the three shrub seedings under low salt treatment were smaller,and the accumulation of osmotic regulation substances and anti-oxidant enzyme activities were higher. Subordinate function analysis revealed that the drought tolerance of the three shrub seedlings from strong to weak was B. alternifolia,C. fruticosa and H. multijugum. Low -salt environment significantly promoted drought resistance of three shrubs.
中文关键词	幼苗 ; 干旱胁迫 ; 隶属函数法
英文关键词	seedling drought stress subordinate function method
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Plant Sciences
CSCD记录号	CSCD:6746189
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/354076
作者单位	张雯莉, 中国科学院西北生态环境资源研究院;;中国科学院大学, 中国科学院沙坡头沙漠试验研究站;;, 兰州;;, 甘肃;;北京 730000;;100049, 中国. 朱恭, 甘肃省兰州市南北两山环境绿化工程指挥部, 兰州, 甘肃 730000, 中国. 黄文广, 宁夏回族自治区草原工作站, 银川, 宁夏 750004, 中国. 张宇, 宁夏回族自治区草原工作站, 银川, 宁夏 750004, 中国. 王蕾, 宁夏回族自治区草原工作站, 银川, 宁夏 750004, 中国. 罗晓玲, 宁夏回族自治区草原工作站, 银川, 宁夏 750004, 中国. 刘玉冰, 中国科学院西北生态环境资源研究院, 中国科学院沙坡头沙漠试验研究站, 兰州, 甘肃 730000, 中国.
推荐引用方式 GB/T 7714	张雯莉,朱恭,黄文广,等. 红花岩黄芪(Hedysarum multijugum) 、灌木铁线莲(Clematis fruticosa)和互叶醉鱼草(Buddleja alternifolia)幼苗适应干旱的生理特征比较[J],2020,40(3).
APA	张雯莉.,朱恭.,黄文广.,张宇.,王蕾.,...&刘玉冰.(2020).红花岩黄芪(Hedysarum multijugum) 、灌木铁线莲(Clematis fruticosa)和互叶醉鱼草(Buddleja alternifolia)幼苗适应干旱的生理特征比较.中国沙漠,40(3).
MLA	张雯莉,et al."红花岩黄芪(Hedysarum multijugum) 、灌木铁线莲(Clematis fruticosa)和互叶醉鱼草(Buddleja alternifolia)幼苗适应干旱的生理特征比较".中国沙漠 40.3(2020).