期刊论文

Characteristics of inorganic salt ion absorption of Miscanthus lutarioriparius polyploid under NaCl stress

中文

草业科学

1001-0629

2018

35

12

2893-2902

10.11829/j.issn.1001-0629.2018-0432

国家自然科学基金“芒属植物异源多倍体表型变异与基因差异表达的相关性研究”（31471557）；

本校为第一机构

南荻(Miscanthus lutarioriparius)是中国特有的芒属植物,是极具应用前景的纤维类生态能源草。为研究南荻多倍体在NaCl胁迫下的无机盐离子吸收特征,本研究以南荻多倍体和奇岗为研究对象,测定其在0、0.2%、0.5%、0.8% NaCl胁迫下对K~+、Ca~(2+)、Mg~(2+)、SO_4~(2-)和NO_3~-的吸收利用率,并同时测定各试验材料的存活率。结果表明,各南荻多倍体对K~+、Ca~(2+)、Mg~(2+)和NO_3~-的吸收率普遍随NaCl浓度的增加呈上升趋势,对SO_4~(2-)的吸收率除多倍体L_7、L_8和L_9随NaCl浓度的增加有明显的上升以外,其他材料均受到不同程度的抑制;而作为对照的奇岗,总存活率较低(38.89%),对K~+、Ca~(2+)、Mg~(2+)和...

Miscanthus lutarioriparius is a species of Miscanthus domestic to China and is an ecological grass with a promising future.To study the inorganic osmotic response of M.lutarioriparius polyploids under NaCl stress,M.lutarioriparius polyploids and Miscanthus×giganteus were treated with 0,0.2%,0.5%,and 0.8% NaCl solution.The absorption rate of K~+,Ca~(2+),Mg~(2+),SO_4~(2-),and NO_3~-were analyzed and the survival rate of each test line was measured.The results showed that the absorption rates of K~+,Ca~(2+),Mg~(2+),and NO_3~-by each polyploid of ...