干旱区生态环境知识资源中心(Arid): Soil properties and climate affect arbuscular mycorrhizal fungi and soil microbial communities in Mediterranean rainfed cereal cropping systems

Arid

DOI	10.1016/j.pedobi.2021.150748
	Soil properties and climate affect arbuscular mycorrhizal fungi and soil microbial communities in Mediterranean rainfed cereal cropping systems
	Jerbi, Maroua; Labidi, Sonia; Bahri, Bochra A.; Laruelle, Frederic; Tisserant, Benoit; Ben Jeddi, Faysal; Sahraoui, Anissa Lounes-Hadj
通讯作者	Sahraoui, ALH (corresponding author), Univ Littoral Cote dOpale, Unite Chim Environm & Interact Vivant UCEIV, SFR Condorcet FR CNRS 3417, UR4492, 50 Rue Ferdinand Buisson, F-62228 Calais, France.
来源期刊	PEDOBIOLOGIA
ISSN	0031-4056
EISSN	1873-1511
出版年	2021
卷号	87-88
英文摘要	Soil microorganisms are generally considered sensitive indicators of soil health and fertility. Understanding the role of environmental factors in driving soil microorganisms' distributions is vital for sustainable crop production, particularly in vulnerable agricultural systems. This study aims to investigate the effect of environmental factors on the variation of soil microbial biomass and arbuscular mycorrhizal (AM) fungi in Mediterranean rainfed cereal systems. To do so, plant roots and soil were sampled from three cereal crops: Avena sativa L., Hordeum vulgare L. and Triticum turgidum L. growing in 24 rainfed sites from three different bioclimatic zones (sub-humid, superior semi-arid and middle semi-arid) in northern Tunisia. Soil microbial phospholipid fatty acids (PLFA) fingerprints, percentage of root length colonized by AM fungi as well as AM fungal spore density were then assessed. The redundancy analysis (RDA) revealed that soil organic matter (SOM), temperature, altitude and soil sand content accounted for 22.7 % of the variation of the microbial PLFA profiles used to estimate both soil microbial biomass and their distribution across different microbial groups. These environmental factors were the most important drivers affecting bacterial PLFAs. However, no significant relationships were observed between fungal PLFAs and environmental factors. Mycorrhizal colonization differed significantly among the different host species and regions. The RDA results indicated that environmental factors, in particular mean annual precipitation (MAP), pH, available phosphorus (P) and carbon/ nitrogen ratio (C/N) explained 44.8 % of AM fungal root colonization and spore number variation. Mycorrhizal colonization was positively correlated with pH but negatively with P, C/N and MAP. Concerning AM fungal spore number, it was positively linked to P and MAP. In contrast, it was inversely related to soil pH. Highlighting the main edaphic and climatic factors disturbing soil microorganisms, especially AM fungi, helps to better understand how environmental change will influence soil microbial communities in Mediterranean rainfed cereal systems.
英文关键词	Soil properties Climatic variables Cereal crops Arbuscular mycorrhizal fungi Soil microbial biomass
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000684566600007
WOS关键词	ENZYME-ACTIVITIES ; PHOSPHORUS FERTILIZATION ; BACTERIAL COMMUNITIES ; BIODIVERSITY LOSS ; PLANT DIVERSITY ; ORGANIC-MATTER ; RESPONSES ; NITROGEN ; COLONIZATION ; TEMPERATURE
WOS类目	Ecology ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368572
作者单位	[Jerbi, Maroua; Labidi, Sonia; Ben Jeddi, Faysal] Univ Carthage, Inst Natl Agron Tunisie, Lab Sci Hort, LR13AGRO1,43 Ave Charles Nicolle, Tunis 1082, Tunisia; [Bahri, Bochra A.] Univ Georgia, Dept Plant Pathol, Griffin, GA 30223 USA; [Bahri, Bochra A.] Univ Georgia, Inst Plant Breeding Genet & Genom, Griffin, GA 30223 USA; [Bahri, Bochra A.] Univ Carthage, Inst Natl Agron Tunisie, Lab Bioagresseurs & Protect Integree Agr, LR14AGR02,43 Ave Charles Nicolle, Tunis 1082, Mahrajene, Tunisia; [Laruelle, Frederic; Tisserant, Benoit; Sahraoui, Anissa Lounes-Hadj] Univ Littoral Cote dOpale, Unite Chim Environm & Interact Vivant UCEIV, SFR Condorcet FR CNRS 3417, UR4492, 50 Rue Ferdinand Buisson, F-62228 Calais, France
推荐引用方式 GB/T 7714	Jerbi, Maroua,Labidi, Sonia,Bahri, Bochra A.,et al. Soil properties and climate affect arbuscular mycorrhizal fungi and soil microbial communities in Mediterranean rainfed cereal cropping systems[J],2021,87-88.
APA	Jerbi, Maroua.,Labidi, Sonia.,Bahri, Bochra A..,Laruelle, Frederic.,Tisserant, Benoit.,...&Sahraoui, Anissa Lounes-Hadj.(2021).Soil properties and climate affect arbuscular mycorrhizal fungi and soil microbial communities in Mediterranean rainfed cereal cropping systems.PEDOBIOLOGIA,87-88.
MLA	Jerbi, Maroua,et al."Soil properties and climate affect arbuscular mycorrhizal fungi and soil microbial communities in Mediterranean rainfed cereal cropping systems".PEDOBIOLOGIA 87-88(2021).