Physiological and anatomical responses of Phyllostachys vivax and Arundinaria fortunei (Gramineae) under salt stress
文献类型： 外文期刊
作者： Ge, Wei 1 ; Zhang, Ying 1 ; Sun, Zhongyuan 1 ; Li, Juan 1 ; Liu, Guohua 3 ; Ma, Yanjun 1 ; Gao, Jian 1 ;
作者机构： 1.State Forestry Adm, Int Ctr Bamboo & Rattan, Key Lab Bamboo & Rattan Sci & Technol, 8 Futong Dongdajie, Beijing 100102, Peoples R China
2.China Natl Engn Res Ctr Informat Technol Agr, Room 818,Bldg A,11,Shuguang Huayuan Middle Rd, Beijing 100097, Peoples R China
3.Nanjing Forestry Univ, Bamboo Res Inst, 159 Longpan Rd, Nanjing 210037, Jiangsu, Peoples R China
关键词： Anatomical structure; Growth index; Ion accumulation; Saline environment
期刊名称：BRAZILIAN JOURNAL OF BOTANY （ 影响因子：1.296； 五年影响因子：1.394 ）
ISSN： 0100-8404
年卷期： 2017 年 40 卷 1 期
页码：
收录情况： SCI
摘要： This research was conducted in order to study salt tolerance of Phyllostachys vivax McClure and Arund-inaria fortunei (Van Houtte) Riviere et C. Riviere. The effects of salinity stress on growth parameters, anatomical changes, and ion accumulation from two 1-year-old bamboo species under different salt treatments were investigated. The growths of P. vivax and A. fortunei were not severely inhibited when salt content was lower than 0.42%. Their structural properties of vascular tissue were affected, and both species showed decreases in vessel diameters and a higher vessel density under salt stress, but they could still maintain relatively stable anatomical structure in saline soils. Besides, the results indicated that Na+ accumulation progressively increased for organs as salinity levels increased. In particular, the accumulation of Na+ in underground organs was obviously higher than those in culms and leaves. The levels of K+, Ca2+, and Mg2+ in salt-stressed cells gradually decreased in response to the increase of Na+. Overall, we concluded that P. vivax and A. fortunei had the ability to withstand salt stress.
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