摘要
Total nitrogen content,total nitrogen isotope(δ15 N),and free amino acid concentration in leaf of Phragmites australis(Cav.)Trin.ex Steud.under flooding for 0-11 d were studied.The results show that with the increase of flooding days,there is no significant variation in total nitrogen content in leaf of P.australis,δ15 N value shows a gradual tend to be negative,and concentrations of total free amino acids,Ser,Asp,and Asn first increase and then decrease.Under flooding for 1 d,δ15 N value decreases obviously and free amino acid concentration increases obviously compared with those under flooding for 0 d.It is indicated thatδ15 N value and free amino acid concentration are good indicators of P.australis under flooding condition.
Total nitrogen content, total nitrogen isotope(δ15N), and free amino acid concentration in leaf of Phragmites australis（Cav.） Trin. ex Steud. under flooding for 0-11 d were studied. The results show that with the increase of flooding days, there is no significant variation in total nitrogen content in leaf of P. australis, δ15N value shows a gradual tend to be negative, and concentrations of total free amino acids, Ser, Asp, and Asn first increase and then decrease. Under flooding for 1 d, δ15N value decreases obviously and free amino acid concentration increases obviously compared with those under flooding for 0 d. It is indicated that δ15N value and free amino acid concentration are good indicators of P. australis under flooding condition.
作者
赖媛媛
朱仁果
罗笠
吕哲
孙启斌
LAI Yuanyuan;ZHU Renguo;LUO Li;LYU Zhe;SUN Qibin(Faculty of Mechanical and Electrical Engineering,Kunming University of Science and Technology,Kunming 650093,China;Jiangxi Province Key Laboratory of the Causes and Control of Atmospheric Pollution,East China University of Technology,Nanchang 330013,China;School of Atmospheric Sciences,Sun Yat-sen University,Guangzhou 510275,China)
出处
《植物资源与环境学报》
CAS
CSCD
北大核心
2019年第4期107-109,共3页
Journal of Plant Resources and Environment
基金
国家自然科学基金资助项目(41463007)
关键词
芦苇
水淹
总氮同位素
游离氨基酸浓度
Phragmites australis(Cav.)Trin.ex Steud.
flooding
total nitrogen isotope
free amino acid concentration
