文献类型：期刊文献

英文题名：Growth, physiological, biochemical, and ionic responses of Morus alba L. seedlings to various salinity levels

作者：Lu, Nan[1,2] Luo, Zijing[1] Ke, Yuzhou[3] Dai, Li[1] Duan, Hongjing[1] Hou, Rongxuan[1] Cui, Binbin[4] Dou, Suhan[5,6] Zhang, Yadong[5,6] Sun, Yuhan[1] Li, Yun[1]

第一作者：卢楠;Lu, Nan

通信作者：Li, Yun|[a0005100700ea65eb9b7f]李蕴;

机构：[1] State Key Laboratory of Forest Genetics and Tree Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China; [2] Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry Univ., National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Key Lab. of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Beijing, 100083, China; [3] Tibet Municipal Tree Science Institution, Lasa, 850000, China; [4] Department of Biology and Chemistry, Baoding University, Baoding, 071000, China; [5] Henan Longyuan Flowers and Trees Co. Ltd., Yanling, Xuchang, 461200, China; [6] Beijing Forestry University Yanling Collaborative Innovation Center, Yanling, Xuchang, 461200, China

年份：2017

卷号：8

期号：12

外文期刊名：Forests

收录：EI(收录号：20175004532180);Scopus(收录号：2-s2.0-85037524704)

语种：英文

外文关键词：Magnesium compounds - Plants (botany) - Antioxidants - Physiology - Seed - Ion exchange - Cytology - Physiological models

摘要：Mulberry (Morus alba L.), a moderately salt-tolerant tree species, is considered to be economically important. In this study, 1-year-old mulberry seedlings cultivated in soil under greenhouse conditions were treated with five concentrations of sodium chloride (NaCl; 0%, 0.1%, 0.2%, 0.3%, and 0.5%) for 3 and 21 days. Plant growth parameters were not affected by 0.1% NaCl, but significant reductions were observed after treatment with 0.2%, 0.3%, and 0.5% NaCl. The malondialdehyde content and cell membrane stability of mulberry seedlings exposed to 0.1% NaCl did not change, indicating that mulberry is not significantly affected by low-salinity conditions. The Na contents of various organs did not increase significantly in response to 0.1% NaCl, but the K:Na, Mg:Na, and Ca:Na ratios of various organs were affected by NaCl. Marked changes in the levels of major compatible solutes (proline, soluble sugars, and soluble proteins) occurred in both the leaves and roots of NaCl-treated seedlings relative to control seedlings. Under severe saline conditions (0.5% NaCl), the ability of mulberry to synthesize enzymatic antioxidants may be impaired. ? 2017 by the authors.