Role of Arbuscular Mycorrhizal Fungi in Plant Growth Regulation: Implications in Abiotic Stress Tolerance

Abiotic stresses hamper plant growth and productivity. Climate change and agricultural malpractices like excessive use of fertilizers and pesticides have aggravated the effects of abiotic stresses on crop productivity and degraded the ecosystem. There is an urgent need for environment-friendly manag...

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Published in:Frontiers in plant science Vol. 10; p. 1068
Main Authors: Begum, Naheeda, Qin, Cheng, Ahanger, Muhammad Abass, Raza, Sajjad, Khan, Muhammad Ishfaq, Ashraf, Muhammad, Ahmed, Nadeem, Zhang, Lixin
Format: Journal Article
Language:English
Published: Switzerland Frontiers Media SA 19.09.2019
Frontiers Media S.A
Subjects:
abiotic factors
Abiotic stress
Agricultural production
arbuscular mycorrhizal fungi
Arbuscular mycorrhizas
Biofertilizers
Biomass
Changing environments
Chlorophyll
Climate change
Crop production
Crops
Drought
Efficiency
Environmental changes
Enzymes
Fertilizers
Flowers & plants
Fungi
Host plants
Inoculation
Metabolic pathways
Metals
mineral nutrition
Nutrients
Pesticides
Physiology
Plant growth
Plant Science
Plant tolerance
Productivity
Salinity
stress tolerance
Stresses
Symbionts
Symbiosis
Water
plant growth
stress tolerance
arbuscular mycorrhizal fungi
abiotic factors
mineral nutrition
ISSN:1664-462X, 1664-462X
Online Access:Get full text
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Summary:Abiotic stresses hamper plant growth and productivity. Climate change and agricultural malpractices like excessive use of fertilizers and pesticides have aggravated the effects of abiotic stresses on crop productivity and degraded the ecosystem. There is an urgent need for environment-friendly management techniques such as the use of arbuscular mycorrhizal fungi (AMF) for enhancing crop productivity. AMF are commonly known as bio-fertilizers. Moreover, it is widely believed that the inoculation of AMF provides tolerance to host plants against various stressful situations like heat, salinity, drought, metals, and extreme temperatures. AMF may both assist host plants in the up-regulation of tolerance mechanisms and prevent the down-regulation of key metabolic pathways. AMF, being natural root symbionts, provide essential plant inorganic nutrients to host plants, thereby improving growth and yield under unstressed and stressed regimes. The role of AMF as a bio-fertilizer can potentially strengthen plants' adaptability to changing environment. Thus, further research focusing on the AMF-mediated promotion of crop quality and productivity is needed. The present review provides a comprehensive up-to-date knowledge on AMF and their influence on host plants at various growth stages, their advantages and applications, and consequently the importance of the relationships of different plant nutrients with AMF.
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Reviewed by: Xiancan Zhu, Northeast Institute of Geography and Agroecology (CAS), China; Nieves Goicoechea, University of Navarra, Spain
Edited by: Ricardo Aroca, Experimental Station of Zaidín (EEZ), Spain
This article was submitted to Plant Abiotic Stress, a section of the journal Frontiers in Plant Science
ISSN:1664-462X
1664-462X
DOI:10.3389/fpls.2019.01068