文献类型：期刊文献

英文题名：Effects of Drought and Host on the Growth of Santalum album Seedlings in Pot Culture

作者：Zhang, Qilei[1] Liu, Xiaojin[1] Xu, Daping[1] Hong, Zhou[1] Zhang, Ningnan[1] Cui, Zhiyi[1]

第一作者：张启雷

通信作者：Liu, XJ[1]

机构：[1]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Peoples R China

年份：2022

卷号：23

期号：19

外文期刊名：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000867778000001)】；

基金：This research was sponsored by the Fundamental Research Funds for the Central Nonprofit Research Institution of Chinese Academy of Forestry (CAFYBB2019QB003, CAFYBB2016QB010) and the National Natural Science Foundation of China (Granted No. 31500512).

语种：英文

外文关键词：Santalum album; drought; photosynthesis; semi-parasitism

摘要：Santalum album is a semi parasitic plant and its growth is often restricted due to a lack of a host or water during plantation establishment. In this study, the effects of water and the host on the growth of S. album seedlings were studied in pot culture. The results showed that the net photosynthetic rate and height of S. album seedlings decreased significantly under drought stress. Compared with the seedlings of S. album grown without a host, the host could significantly increase the growth of S. album seedlings. The contents of soluble sugar and proline in S. album leaves increased significantly under drought stress. Drought stress resulted in a significant accumulation of malondialdehyde, increments of antioxidant enzymes activity, and non-enzymatic antioxidant substances. Antioxidant capacity was stronger and malondialdehyde content was lower in the seedling leaves of S. album with a host than in the seedlings without a host. RNA-seq was used to analyze the transcription expression profiles of S. album leaves and the results were consistent with the physiological data. These results indicate that the host can promote the seedling growth of S. album and it can increase the antioxidant capacity and osmotic adjustment substance content of the seedlings of S. album, alleviating the damage caused by drought.