干旱区生态环境知识资源中心(Arid): Dynamics of arbuscular mycorrhizal fungi and glomalin in the rhizosphere of Gymnocarpos przewalskii in Northwest Desert, China

Arid

DOI	10.1016/j.apsoil.2021.104251
	Dynamics of arbuscular mycorrhizal fungi and glomalin in the rhizosphere of Gymnocarpos przewalskii in Northwest Desert, China
	Zhao, Lili; Zhang, Kaixun; Sun, Xiang; He, Xueli
通讯作者	He, XL (corresponding author), Hebei Univ, Sch Life Sci, 180 Wusidong Rd, Baoding 071002, Hebei, Peoples R China.
来源期刊	APPLIED SOIL ECOLOGY
ISSN	0929-1393
EISSN	1873-0272
出版年	2022
卷号	170
英文摘要	Relict plants, remnants of Tertiary flora, survived geochronological ages, however, studies intended to ascertain the background of their fungal symbionts are limited. Different from many other relict plants, Gymnocarpos przewalskii Maxim. inhabits arid deserts region, mainly distributed in northwest China. In order to inquire the arbuscular mycorrhizal fungi (AMF) associated to G. przewalskii and their ecological significance in desert ecosystems, the seasonal dynamics of AMF and glomalin were surveyed in Anxi and Minqin in Gansu Province, northwest China. Soil samples in the rhizosphere of G. przewalskii were collected in July, September and December 2019, respectively. In total, 41 and 46 AMF species were identified via morphological techniques in Anxi and Minqin, respectively. Meanwhile, high throughput sequencing (HTS) data diagnosed 29 and 61 AMF OTUs in Anxi and Minqin, respectively. Glomus was the dominant genus in different seasons and locations in both morphological investigation and HTS data. AMF colonization (44.67-75.30%) and spore densities (19-248 per 20 g soil) varied sharply among seasons and locations. AMF colonization and spore densities showed significant positive correlations to most edaphic factors, except soil carbon: nitrogen ratio. Glomalin-related soil protein (GRSP) dramatically contributed to local soil carbon pool (51.54% in Anxi, 40.37% in Minqin), and the GRSP contents in soil were significantly affected by soil properties, season, and location. Random forest analysis indicated that soil humidity and total GRSP were the main factors shaping AMF communities. Our results showed that AMF colonization, spore density, and species diversity were higher and AMF community composition was less variable in Minqin where the soil nutrition levels were lower, which emphasized the necessity of AMF symbiosis for plants in harsh environments. The present research demonstrated the seasonal dynamics of soil AMF communities and glomalin and determined influential environmental factors in desert ecosystems. Our findings provide novel views on desert soil resource management and relict plant protection from an aspect of plant-AMF symbiosis.
英文关键词	AM fungi Glomalin-related soil protein Seasonal and location changes Relict plant Desert ecosystem
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000711839700005
WOS关键词	SOIL AGGREGATE STABILITY ; NITROGEN ADDITION ; COMMUNITY COMPOSITION ; SPATIAL-DISTRIBUTION ; SEASONAL DYNAMICS ; DIVERSITY ; SYMBIOSIS ; PROTEINS ; GRADIENT ; PLANTS
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374546
作者单位	[Zhao, Lili; Zhang, Kaixun; Sun, Xiang; He, Xueli] Hebei Univ, Sch Life Sci, 180 Wusidong Rd, Baoding 071002, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Lili,Zhang, Kaixun,Sun, Xiang,et al. Dynamics of arbuscular mycorrhizal fungi and glomalin in the rhizosphere of Gymnocarpos przewalskii in Northwest Desert, China[J],2022,170.
APA	Zhao, Lili,Zhang, Kaixun,Sun, Xiang,&He, Xueli.(2022).Dynamics of arbuscular mycorrhizal fungi and glomalin in the rhizosphere of Gymnocarpos przewalskii in Northwest Desert, China.APPLIED SOIL ECOLOGY,170.
MLA	Zhao, Lili,et al."Dynamics of arbuscular mycorrhizal fungi and glomalin in the rhizosphere of Gymnocarpos przewalskii in Northwest Desert, China".APPLIED SOIL ECOLOGY 170(2022).