Role of arbuscular mycorrhizal fungi as biocontrol agents against Fusarium verticillioides causing ear rot of Zea mays L. (Maize)

Olowe, Olumayowa Mary; Olawuyi, O. J.; Sobowale, A. A.; Odebode, A. C.

doi:10.1016/j.cpb.2018.11.005

Cited by 48 publications

(19 citation statements)

References 15 publications

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“…Many researchers have given substantial reports on the biostimulatory potentials of different fungi and bacteria (Tables 1 and 2), several root‐associated fungal symbionts such as mycorrhizae, Piriformospora and Trichoderma and some bacteria such as Bacillus . Many fungi have been reported to enhance not only plant growth but also resistance to different pests (Akanmu et al, 2012; Asemoloye et al, 2018; Olowe, Olawuyi, Sobowale, & Odebode, 2018). Instead of the excessive application of fertilisers and pesticides into a soil system, microbial stimulants can be employed to aid uptake of nutrients (Bell, 2019) and combat pests (Berendsen, Pieterse, & Bakker, 2012).…”

Section: Exploration Of Microbial Stimulants In Agriculturementioning

confidence: 99%

“…Pozo and Azcón‐Aguilar (2007) and Liu et al (2007) reported the benefits of arbuscular mycorrhizal (AM) symbiosis on plants giving rise to induced resistance to pathogens. The positive impacts of AM symbiosis can be seen as regards control of foliar pathogens; however, both increased susceptibility and improved resistance have been reported (Abiala et al, 2013; Olawuyi et al, 2013; Olowe et al, 2018). The effects of mycorrhizal fungi as biocontrol agents against pathogens depend on the lifestyle of the pathogen.…”

Section: The Importance Of Isr By Rhizosphere Fungimentioning

confidence: 99%

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Exploration of microbial stimulants for induction of systemic resistance in plant disease management

Olowe

Akanmu

Asemoloye

2020

Annals of Applied Biology

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Plants are exposed to different environmental stresses (biotic or abiotic) in their habitats, these stresses often result in several diseases and decline in crop production which are major concerns to crop producers and scientists. Habitat‐imposed biotic stress is one of the most common problems of crop production. The use of chemical‐based pesticides has been widely reported to control plant diseases but the residual effects of excessive application of pesticides necessitates the use of biological control agents known to play important safety roles in plant disease management. Symbiotic associations between diverse microorganisms and plant roots have also been proven to have enormous impacts on their respective growths and survival; induced systemic resistance (ISR) is part of the mechanism through which plant‐growth‐promoting bacteria and fungi stimulate plant growth and resistance to pathogens. Many of these microorganisms act as stimulants which can be exploited for boosting nutrient uptake, pest control and to protect crops from environmental stresses for better growth. This review focuses on the plant diseases, microbial stimulants and their mechanisms as nutrient enhancers in crop production as well as their potentials in biological control of plant diseases through ISR.

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Section: Exploration Of Microbial Stimulants In Agriculturementioning

confidence: 99%

Section: The Importance Of Isr By Rhizosphere Fungimentioning

confidence: 99%

Exploration of microbial stimulants for induction of systemic resistance in plant disease management

Olowe

Akanmu

Asemoloye

2020

Annals of Applied Biology

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“…The ISR achieved in mycorrhizal plants is known as mycorrhiza-induced resistance (MIR; Pozo and Azcón-Aguilar, 2007 ). Several reports have demonstrated the functionality of MIR in protecting plants against a wide range of belowground aggressors such as soil-borne pathogens, nematodes or root-chewing insects ( Currie et al , 2011 ; Jung et al , 2012 ; Schouteden et al , 2015 ; Olowe et al , 2018 ; Pozo et al , 2020 ). However, contrasting results have been reported regarding the effect of mycorrhiza on aboveground attackers, and the efficiency of MIR seems to be related to the lifestyle and feeding guild of the aggressors ( Pozo and Azcón-Aguilar, 2007 ).…”

Section: Introductionmentioning

confidence: 99%

Mycorrhizal symbiosis primes the accumulation of antiherbivore compounds and enhances herbivore mortality in tomato

Rivero

Lidoy

Llopis-Giménez

et al. 2021

Journal of Experimental Botany

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Plant association with arbuscular mycorrhizal fungi (AMF) can increase their ability to overcome multiple stresses, but their impact on plant interactions with herbivorous insects is controversial. Here we show higher mortality of the leaf-chewer Spodoptera exigua when fed on tomato plants colonized by the AMF Funneliformis mosseae, evidencing mycorrhiza-induced resistance. In search of the underlying mechanisms, an untargeted metabolomic analysis through ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS) was performed. The results showed that mycorrhizal symbiosis had a very limited impact on the leaf metabolome in the absence of stress, but significantly modulated the response to herbivory in the damaged area. A cluster of over accumulated metabolites was identified in those leaflets damaged by S. exigua feeding in mycorrhizal plants, while unwounded distal leaflets responded similar to those from non-mycorrhizal plants. These primed-compounds were mostly related to alkaloids, fatty acid derivatives and phenylpropanoid-polyamine conjugates. The deleterious effect on larval survival of some of these compounds, including the alkaloid physostigmine, the fatty acid derivatives 4-oxododecanedioic acid and azelaic acid, was confirmed. Thus, our results evidence the impact of AMF on metabolic reprograming upon herbivory that leads to a primed accumulation of defensive compounds.

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“…Previous studies have shown that antifungal compounds from Pseudomonas are strongly antagonistic to Fusarium ( Pal et al, 2001 ; Figueroa-Lopez et al, 2016 ). In addition, the increase in the relative abundance of Glomeromycota may also be involved in the competition for space and nutrients with pathogenic microorganisms ( Martinez-Viveros et al, 2010 ; Olowe et al, 2018 ).…”

Section: Discussionmentioning

confidence: 99%

Rhizosphere Microbial Communities Are Significantly Affected by Optimized Phosphorus Management in a Slope Farming System

et al. 2021

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Soil rhizosphere microorganisms play crucial roles in promoting plant nutrient absorption and maintaining soil health. However, the effects of different phosphorus (P) managements on soil microbial communities in a slope farming system are poorly understood. Here, rhizosphere microbial communities under two P fertilization levels—conventional (125 kg P2O5 ha–1, P125) and optimal (90 kg P2O5 ha–1, P90)—were compared at four growth stages of maize in a typical sloped farming system. The richness and diversity of rhizosphere bacterial communities showed significant dynamic changes throughout the growth period of maize, while different results were observed in fungal communities. However, both the P fertilization levels and the growth stages influenced the structure and composition of the maize rhizosphere microbiota. Notably, compared to P125, Pseudomonas, Conexibacter, Mycobacterium, Acidothermus, Glomeromycota, and Talaromyces were significantly enriched in the different growth stages of maize under P90, while the relative abundance of Fusarium was significantly decreased during maize harvest. Soil total nitrogen (TN) and pH are the first environmental drivers of change in bacterial and fungal community structures, respectively. The abundance of Gemmatimonadota, Proteobacteria, and Cyanobacteria showed significant correlations with soil TN, while that of Basidiomycota and Mortierellomycota was significantly related to pH. Additionally, P90 strengthened the connection between bacteria, but reduced the links between fungi at the genus level. Our work helps in understanding the role of P fertilization levels in shaping the rhizosphere microbiota and may manipulate beneficial microorganisms for better P use efficiency.

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Role of arbuscular mycorrhizal fungi as biocontrol agents against Fusarium verticillioides causing ear rot of Zea mays L. (Maize)

Cited by 48 publications

References 15 publications

Exploration of microbial stimulants for induction of systemic resistance in plant disease management

Exploration of microbial stimulants for induction of systemic resistance in plant disease management

Mycorrhizal symbiosis primes the accumulation of antiherbivore compounds and enhances herbivore mortality in tomato

Rhizosphere Microbial Communities Are Significantly Affected by Optimized Phosphorus Management in a Slope Farming System

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