干旱区生态环境知识资源中心(Arid): Response of Ammodendron bifolium Seedlings Inoculated with AMF to Drought Stress

Arid

DOI	10.3390/atmos14060989
	Response of Ammodendron bifolium Seedlings Inoculated with AMF to Drought Stress
	Wu, Limei; Zheng, Yujuan; Liu, Shulan; Jia, Xiande; Lv, Haiying
通讯作者	Lv, H
来源期刊	ATMOSPHERE
EISSN	2073-4433
出版年	2023
卷号	14 期号:6
英文摘要	Drought has become a serious environmental problem affecting people all around the world as a result of rising atmospheric pollution and global warming. Through symbiosis with Arbuscular mycorrhizal fungus (AMF), plants may mitigate the impacts of drought stress on growth and development as well as physiological metabolism. As a pioneer plant for windbreak and sand fixation, the symbiosis between AMF and Ammodendron bifolium can improve its drought resistance, which is of great significance for species protection and desertification control. In this study, A. bifolium seedlings were used as the test subject in a pot experiment with four drought stress gradients and two inoculation treatments to examine the effects of water treatment and AMF inoculation on the growth of the seedlings. The results showed that drought stress significantly inhibited the growth indexes of A. bifolium seedlings such as the height, basal diameter, blades number, and biomass, and that inoculation with AMF could promote the growth of A. bifolium seedlings and help mitigate the damage caused by drought stress. Drought stress increased the antioxidant enzyme activity and proline (Pro) accumulation in A. bifolium plants, and AMF inoculation induced higher antioxidant enzyme activity and lower malondialdehyde (MDA) and Pro contents in A. bifolium seedlings compared to non-AMF-inoculated plants. Drought stress harmed the chloroplast structure, reduced the chlorophyll concentration, and decreased the photosynthetic efficiency in A. bifolium seedlings. The ability of AMF-inoculated plants to withstand drought was enhanced by increased levels of photosynthetic pigments, higher photosynthetic activity, and increased photosynthetic product accumulation in the roots. These results suggest that AMF inoculation can alleviate drough-tinduced damage by promoting plant growth and improving plant antioxidant, osmoregulation, and photosynthetic capacity. In the context of increasing drought due to global warming, AMF inoculation can be an excellent way to enhance A. bifolium drought resistance.
英文关键词	Ammodendron bifolium arbuscular mycorrhizal fungi global warming drought stress
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001016932400001
WOS关键词	ARBUSCULAR MYCORRHIZAL FUNGI ; CHLOROPHYLL FLUORESCENCE ; PROLINE ACCUMULATION ; MORPHOLOGICAL TRAITS ; GENE-EXPRESSION ; PLANT-GROWTH ; TOLERANCE ; WATER ; DYNAMICS ; ROOTS
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395475
推荐引用方式 GB/T 7714	Wu, Limei,Zheng, Yujuan,Liu, Shulan,et al. Response of Ammodendron bifolium Seedlings Inoculated with AMF to Drought Stress[J],2023,14(6).
APA	Wu, Limei,Zheng, Yujuan,Liu, Shulan,Jia, Xiande,&Lv, Haiying.(2023).Response of Ammodendron bifolium Seedlings Inoculated with AMF to Drought Stress.ATMOSPHERE,14(6).
MLA	Wu, Limei,et al."Response of Ammodendron bifolium Seedlings Inoculated with AMF to Drought Stress".ATMOSPHERE 14.6(2023).