Potential Role and Utilization of Plant Growth Promoting Microbes in Plant Tissue Culture.

Abdoulaye Soumare,Yedir Ouhdouch,Saliou Fall,Laith Khalil Tawfeeq Al-Ani,Mariama Ngom,Naveen Kumar Arora,Mame Ourèye Sy,Lamfeddal Kouisni,Abdala G Diédhiou,Mohamed Hafidi

doi:10.3389/fmicb.2021.649878

Abstract

Plant growth promoting microbes (PGPMs) play major roles in diverse ecosystems, including atmospheric nitrogen fixation, water uptake, solubilization, and transport of minerals from the soil to the plant. Different PGPMs are proposed as biofertilizers, biostimulants, and/or biocontrol agents to improve plant growth and productivity and thereby to contribute to agricultural sustainability and food security. However, little information exists regarding the use of PGPMs in micropropagation such as the in vitro plant tissue culture. This review presents an overview of the importance of PGPMs and their potential application in plant micropropagation. Our analysis, based on published articles, reveals that the process of in vitro classical tissue culture techniques, under strictly aseptic conditions, deserves to be reviewed to allow vitroplants to benefit from the positive effect of PGPMs. Furthermore, exploiting the potential benefits of PGPMs will lead to lessen the cost production of vitroplants during micropropagation process and will make the technique of plant tissue culture more efficient. The last part of the review will indicate where research is needed in the future.

Highlights

Plant tissue culture consists of producing, under aseptic conditions, a whole plant from an explant or even a single plant cell
This review aims to highlight the potential role of Plant growth promoting microbes (PGPMs) in in vitro plant tissue culture, with special emphasis on micropropagation
Plant tissue culture technique constitutes an important tool in modern agriculture, horticulture, and forestry

Summary

Introduction

Plant tissue culture consists of producing, under aseptic conditions, a whole plant from an explant or even a single plant cell This component of plant biotechnology relies on the phenomenon of cell totipotency, which is the ability of any single cells to produce all the differentiated cells characteristic of organs, and to regenerate into an entire plant (Trigiano and Gray, 2016). Micropropagation plays a considerable role in agriculture, horticulture, and Beneficial Microbes in Micropropagation industry through the production of healthy seedlings throughout the year, and the reduction of the vegetal cycle (Suman, 2017) It is a core technology for conservation of plant genetic resources, crop improvement, and propagation of new varieties from somaclonal variation, and genetic manipulation. Some of these plant growth regulators (PGRs) are very costly, and limit or restrain the expansion of this technology and its agricultural profitability

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