Meta-omics of endophytic microbes in agricultural biotechnology

Adeleke, Bartholomew Saanu; Babalola, Olubukola Oluranti

doi:10.1016/j.bcab.2022.102332

Cited by 28 publications

(13 citation statements)

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“…From the multifaceted application perspective, the mechanisms employed by endophytic microbes immensely contribute to plant growth and health [ 22 ]. Microbes employ direct or indirect mechanisms in sustaining plant growth and health [ 131 ].…”

Section: Plant Growth Stimulation Attributes Of Endophytic Bacteriamentioning

confidence: 99%

“…The interdependence of endophytic bacteria with the host plants confers beneficial effects in soybeans and other food crops, such that it stimulates plant growth promoters, antibiosis activity against phytopathogens for plant health, defense against oxidative stress, and yield enhancement without any pathogenic effects [ 21 , 22 ]. Limited information is available in the literature on the plant growth stimulation and biocontrol potential of endophytic bacteria inhabiting soybean, thus limiting their ecological services.…”

Section: Introductionmentioning

confidence: 99%

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Bioprospecting and Challenges of Plant Microbiome Research for Sustainable Agriculture, a Review on Soybean Endophytic Bacteria

2022

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This review evaluates oilseed crop soybean endophytic bacteria, their prospects, and challenges for sustainable agriculture. Soybean is one of the most important oilseed crops with about 20–25% protein content and 20% edible oil production. The ability of soybean root-associated microbes to restore soil nutrients enhances crop yield. Naturally, the soybean root endosphere harbors root nodule bacteria, and endophytic bacteria, which help increase the nitrogen pool and reclamation of another nutrient loss in the soil for plant nutrition. Endophytic bacteria can sustain plant growth and health by exhibiting antibiosis against phytopathogens, production of enzymes, phytohormone biosynthesis, organic acids, and secondary metabolite secretions. Considerable effort in the agricultural industry is focused on multifunctional concepts and bioprospecting on the use of bioinput from endophytic microbes to ensure a stable ecosystem. Bioprospecting in the case of this review is a systemic overview of the biorational approach to harness beneficial plant-associated microbes to ensure food security in the future. Progress in this endeavor is limited by available techniques. The use of molecular techniques in unraveling the functions of soybean endophytic bacteria can explore their use in integrated organic farming. Our review brings to light the endophytic microbial dynamics of soybeans and current status of plant microbiome research for sustainable agriculture.

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Section: Plant Growth Stimulation Attributes Of Endophytic Bacteriamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bioprospecting and Challenges of Plant Microbiome Research for Sustainable Agriculture, a Review on Soybean Endophytic Bacteria

2022

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“…Endophytes hold a prodigious position pertaining to their applications in diverse fields, viz., agriculture, bioremediation, biotransformation, and industry thereby showcasing their potential in fulfilling various demands in the international market to boost the global economy. Despite offering safe and sustainable alternatives to harmful chemicals, research on endophytic delignification is essentially meagre ( Adeleke and Babalola, 2022 ). This is because endophytes are the cryptic creatures of nature that reside silently within the plant tissues.…”

Section: Methods Of Lignin Depolymerizationmentioning

confidence: 99%

Endophytes in Lignin Valorization: A Novel Approach

Mattoo

Nonzom

2022

Front. Bioeng. Biotechnol.

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Lignin, one of the essential components of lignocellulosic biomass, comprises an abundant renewable aromatic resource on the planet earth. Although 15%––40% of lignocellulose pertains to lignin, its annual valorization rate is less than 2% which raises the concern to harness and/or develop effective technologies for its valorization. The basic hindrance lies in the structural heterogeneity, complexity, and stability of lignin that collectively makes it difficult to depolymerize and yield common products. Recently, microbial delignification, an eco-friendly and cheaper technique, has attracted the attention due to the diverse metabolisms of microbes that can channelize multiple lignin-based products into specific target compounds. Also, endophytes, a fascinating group of microbes residing asymptomatically within the plant tissues, exhibit marvellous lignin deconstruction potential. Apart from novel sources for potent and stable ligninases, endophytes share immense ability of depolymerizing lignin into desired valuable products. Despite their efficacy, ligninolytic studies on endophytes are meagre with incomplete understanding of the pathways involved at the molecular level. In the recent years, improvement of thermochemical methods has received much attention, however, we lagged in exploring the novel microbial groups for their delignification efficiency and optimization of this ability. This review summarizes the currently available knowledge about endophytic delignification potential with special emphasis on underlying mechanism of biological funnelling for the production of valuable products. It also highlights the recent advancements in developing the most intriguing methods to depolymerize lignin. Comparative account of thermochemical and biological techniques is accentuated with special emphasis on biological/microbial degradation. Exploring potent biological agents for delignification and focussing on the basic challenges in enhancing lignin valorization and overcoming them could make this renewable resource a promising tool to accomplish Sustainable Development Goals (SDG’s) which are supposed to be achieved by 2030.

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“…Endophytic microbes enhance plant growth, diseases tolerance and control, and carbon sequestration (Wang et al 2022). Endophytic fungi inhabiting various plant compartments broadly promote plant growth through different mechanisms classified as direct and indirect mechanisms (Adeleke and Babalola 2022). In the direct mechanism, the endophytes regulate various plant hormones, such as cytokinin, ethylene, and auxins, enhance soil nutrient availability, which includes phosphorus and iron solubilization, siderophore production, and nitrogen fixation; whereas in the indirect mechanism, the endophytes prevent damage to the plants by releasing enzymes, antibiotics, hydrogen cyanide, and volatile compounds which inhibit the activities of pathogens, and induce systemic resistance (Segaran and Sathiavelu 2019).…”

Section: Endophytic Fungi Classification and Characteristics In The E...mentioning

confidence: 99%

Biocontrol mechanisms of endophytic fungi

Adeleke

Ayilara

Akinola

et al. 2022

Egypt J Biol Pest Control

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Background Scientific approaches into modern agricultural systems, as opposed to the use of synthetic pesticides in food production, became important by exploring endophytic fungi capable of protecting plants against pathogens for maximum crop productivity. Main body Diverse endophytic microbes colonizing the internal tissue of plants exhibit beneficial and pathological effects on plants. The beneficial endophytic fungi assisted plants in the control of pathogenic endophytic fungi in plants due to their ability to directly or indirectly promote plant health. Inefficient agricultural practices and environmental factors contribute to the disease emergence in plants. Endophytic fungi employed diverse mechanisms in phytopathogen control by activating and inducing plant resistance through gene expression, synthesis of fungi-derived metabolite compounds, and hormonal signaling molecules. The mutual coexistence between endophytic fungi and host plants remains an important mechanism in disease suppression. An in-depth understanding and selection of beneficial endophytic fungi and interaction between pathogens and host plants are important in managing challenges associated with the endophyte biocontrol mechanisms. Conclusion Research findings on the use of endophytic fungi as bioinoculants are advancing, and understanding endophytic fungi antibiosis action through the synthesis of biocontrol agents (BCAs) can, however, be explored in integrated plant disease management. Therefore, in this review, the biocontrol mechanism of endophytic fungi against plant pathogens was highlighted.

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Meta-omics of endophytic microbes in agricultural biotechnology

Cited by 28 publications

References 283 publications

Bioprospecting and Challenges of Plant Microbiome Research for Sustainable Agriculture, a Review on Soybean Endophytic Bacteria

Bioprospecting and Challenges of Plant Microbiome Research for Sustainable Agriculture, a Review on Soybean Endophytic Bacteria

Endophytes in Lignin Valorization: A Novel Approach

Biocontrol mechanisms of endophytic fungi

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