Effects of arbuscular mycorrhizal fungi on the growth and physiological metabolism of Leymus chinensis under salt-alkali stress

2018 ◽  
Vol 38 (6) ◽  
Author(s):  
王英男 WANG Yingnan ◽  
陶爽 TAO Shuang ◽  
华晓雨 HUA Xiaoyu ◽  
于兴洋 YU Xingyang ◽  
阎秀峰 YAN Xiufeng ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Leymus Chinensis ◽  
Alkali Stress ◽  
Physiological Metabolism

scholarly journals Effects of arbuscular mycorrhizal fungi on Leymus chinensis seedlings under salt–alkali stress and nitrogen deposition conditions: from osmotic adjustment and ion balance

RSC Advances ◽  
2018 ◽  
Vol 8 (26) ◽  
pp. 14500-14509 ◽  
Author(s):  
Jixiang Lin ◽  
Xiaoyuan Peng ◽  
Xiaoyu Hua ◽  
Shengnan Sun ◽  
Yingnan Wang ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Nitrogen Deposition ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Leymus Chinensis ◽  
Alkali Stress ◽  
Ion Content ◽  
Ion Balance ◽  
Solute Accumulation ◽  
Deposition Conditions

We evaluated the contribution of arbuscular mycorrhizal fungi to the growth, ion content, and solute accumulation of Leymus chinensis seedlings under salt–alkali stress and nitrogen deposition.

scholarly journals Arbuscular Mycorrhizal Fungi Alter Plant and Soil C:N:P Stoichiometries Under Warming and Nitrogen Input in a Semiarid Meadow of China

2019 ◽  
Vol 16 (3) ◽  
pp. 397 ◽  
Author(s):  
Linlin Mei ◽  
Xue Yang ◽  
Hongbing Cao ◽  
Tao Zhang ◽  
Jixun Guo
Keyword(s):  
Global Change ◽  
Plant Growth ◽  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
C:N Ratio ◽  
Arbuscular Mycorrhizal ◽  
Nutrient Utilization ◽  
Leymus Chinensis ◽  
C4 Grass ◽  
N Input

Ecological stoichiometry has been widely used to determine how plant-soil systems respond to global change and to reveal which factors limit plant growth. Arbuscular mycorrhizal fungi (AMF) can increase plants’ uptake of nutrients such as nitrogen (N) and phosphorus (P), thereby altering plant and soil stoichiometries. To understand the regulatory effect of AMF feedback on plants and soil stoichiometry under global change, a microcosm experiment was conducted with warming and N input. The C4 grass Setaria viridis, C3 grass Leymus chinensis, and Chenopodiaceae species Suaeda corniculata were studied. The results showed that the mycorrhizal benefits for the C4 grass S. viridis were greater than those for the C3 grass L. chinensis, whereas for the Chenopodiaceae species S. corniculata, AMF symbiosis was antagonistic. Under N input and a combination of warming and N input, AMF significantly decreased the N:P ratios of all three species. Under N input, the soil N content and the N:P ratio were decreased significantly in the presence of AMF, whereas the soil C:N ratio was increased. These results showed that AMF can reduce the P limitation caused by N input and improve the efficiency of nutrient utilization, slow the negative influence of global change on plant growth, and promote grassland sustainability.

Tripartite Interactions Between Endophytic Fungi, Arbuscular Mycorrhizal Fungi, and Leymus chinensis

2019 ◽  
Vol 79 (1) ◽  
pp. 98-109
Author(s):  
Hui Liu ◽  
Man Wu ◽  
Jinming Liu ◽  
Yaobing Qu ◽  
Yubao Gao ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Endophytic Fungi ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Leymus Chinensis ◽  
Tripartite Interactions

scholarly journals Metabolomics Analysis Reveals the Alkali Tolerance Mechanism in Puccinellia tenuiflora Plants Inoculated with Arbuscular Mycorrhizal Fungi

2020 ◽  
Vol 8 (3) ◽  
pp. 327 ◽  
Author(s):  
Chunxue Yang ◽  
Wenna Zhao ◽  
Yingnan Wang ◽  
Liang Zhang ◽  
Shouchen Huang ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Molecular Mechanisms ◽  
Arbuscular Mycorrhizal ◽  
Plant Distribution ◽  
Grass Species ◽  
Alkali Stress ◽  
Orthogonal Projections ◽  
Puccinellia Tenuiflora ◽  
Amf Inoculation

Soil alkalization is a major environmental threat that affects plant distribution and yield in northeastern China. Puccinellia tenuiflora is an alkali-tolerant grass species that is used for salt-alkali grassland restoration. However, little is known about the molecular mechanisms by which arbuscular mycorrhizal fungi (AMF) enhance P. tenuiflora responses to alkali stress. Here, metabolite profiling in P. tenuiflora seedlings with or without arbuscular mycorrhizal fungi (AMF) under alkali stress was conducted using liquid chromatography combined with time-of-flight mass spectrometry (LC/TOF-MS). The results showed that AMF colonization increased seedling biomass under alkali stress. In addition, principal component analysis (PCA) and orthogonal projections to latent structures discriminant analysis (OPLS-DA) demonstrated that non-AM and AM seedlings showed different responses under alkali stress. A heat map analysis showed that the levels of 88 metabolites were significantly changed in non-AM seedlings, but those of only 31 metabolites were significantly changed in AM seedlings. Moreover, the levels of a total of 62 metabolites were significantly changed in P. tenuiflora seedlings after AMF inoculation. The results suggested that AMF inoculation significantly increased amino acid, organic acid, flavonoid and sterol contents to improve osmotic adjustment and maintain cell membrane stability under alkali stress. P. tenuiflora seedlings after AMF inoculation produced more plant hormones (salicylic acid and abscisic acid) than the non-AM seedlings, probably to enhance the antioxidant system and facilitate ion balance under stress conditions. In conclusion, these findings provide new insights into the metabolic mechanisms of P. tenuiflora seedlings with arbuscular mycorrhizal fungi under alkali conditions and clarify the role of AM in the molecular regulation of this species under alkali stress.

scholarly journals Interaction Between Root Exudates of the Poisonous Plant Stellera chamaejasme L. and Arbuscular Mycorrhizal Fungi on the Growth of Leymus Chinensis (Trin.) Tzvel

2020 ◽  
Vol 8 (3) ◽  
pp. 364
Author(s):  
Xinrui Zhu ◽  
Xiaote Li ◽  
Fu Xing ◽  
Chen Chen ◽  
Guohui Huang ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Total Nitrogen ◽  
Soil Ph ◽  
Root Exudates ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Leymus Chinensis ◽  
Poisonous Plant ◽  
Poisonous Plants ◽  
Stellera Chamaejasme

The growth of a large number of poisonous plants is an indicator of grassland degradation. Releasing allelochemicals through root exudates is one of the strategies with which poisonous plants affect neighboring plants in nature. Arbuscular mycorrhizal fungi (AMF) can form a mutualistic symbiosis with most of the higher plants. However, the manner of interaction between root exudates of poisonous plants and AMF on neighboring herbage in grasslands remains poorly understood. Stellera chamaejasme L., a common poisonous plant with approved allelopathy, is widely distributed with the dominant grass of Leymus chinensis in the degradeds of Northern China. In this study, we investigated the addition of S. chamaejasme root exudates (SRE), the inoculation of AMF, and their interaction on the growth and tissue nitrogen contents of L. chinensis, the characteristics of rhizosphere AMF, and soil physicochemical properties. Results showed that SRE had significant effects on ramet number, aboveground biomass, and total nitrogen of L. chinensis in a concentration dependent manner. Additionally, SRE had a significant negative effect on the rate of mycorrhiza infection and spore density of the AMF. Meanwhile, the addition of SRE significantly affected soil pH, electrical conductivity, available nitrogen (AN), available phosphorus (AP), total nitrogen (TN), and total carbon (TC) contents; while neither inoculation of AMF itself nor the interaction of AMF with SRE significantly affected the growth of L. chinensis. The interaction between AMF and SRE dramatically changed the pH, AP, and TC of rhizosphere soil. Therefore, we suggested SRE of S. chamaejasme affected the growth of L. chinensis by altering soil pH and nutrient availability. AMF could change the effect of SRE on soil nutrients and have the potential to regulate the allelopathic effects of S. chamaejasme and the interspecific interaction between the two plant species. We have provided new evidence for the allelopathic mechanism of S. chamaejasme and the regulation effects of AMF on the interspecific relationship between poisonous plants and neighboring plants. Our findings reveal the complex interplay between the root exudates of poisonous plants and rhizosphere AMF in regulating population growth and dynamics of neighboring plants in degraded grassland ecosystems.

Effects of endophyte and arbuscular mycorrhizal fungi on growth of Leymus chinensis

2015 ◽  
Vol 39 (5) ◽  
pp. 477-485 ◽  
Author(s):  
LIU Hui ◽  
◽  
CHEN Wei ◽  
ZHOU Yong ◽  
LI Xia ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Leymus Chinensis
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