Potential applications of plant probiotic microorganisms in agriculture and forestry

Abstract

Agriculture producers, pushed by the need for high productivity, have stimulated the intensive use of pesticides and fertilizers. Unfortunately, negative effects on water, soil, and human and animal health have appeared as a consequence of this indiscriminate practice. Plant probiotic microorganisms (PPM), also known as bioprotectants, biocontrollers, biofertilizers, or biostimulants, are beneficial microorganisms that offer a promising alternative and reduce health and environmental problems. These microorganisms are involved in either a symbiotic or free-living association with plants and act in different ways, sometimes with specific functions, to achieve satisfactory plant development. This review deals with PPM presentation and their description and function in different applications. PPM includes the plant growth promoters (PGP) group, which contain bacteria and fungi that stimulate plant growth through different mechanisms. Soil microflora mediate many biogeochemical processes. The use of plant probiotics as an alternative soil fertilization source has been the focus of several studies; their use in agriculture improves nutrient supply and conserves field management and causes no adverse effects. The species related to organic matter and pollutant biodegradation in soil and abiotic stress tolerance are then presented. As an important way to understand not only the ecological role of PPM and their interaction with plants but also the biotechnological application of these cultures to crop management, two main approaches are elucidated: the culture-dependent approach where the microorganisms contained in the plant material are isolated by culturing and are identified by a combination of phenotypic and molecular methods; and the culture-independent approach where microorganisms are detected without cultivating them, based on extraction and analyses of DNA. These methods combine to give a thorough knowledge of the microbiology of the studied environment.

Plant Growth Promotion and Biocontrol of Pythium ultimum by Saline Tolerant Trichoderma Isolates under Salinity Stress

“…TL has been termed probiotic thanks to the multiple benefits to the associated host tomato plants and in disease control [29]. Plant probiotic microorganisms (PPM), also known as bioprotectants, biocontrollers, biofertilizers or biostimulants, are beneficial microorganisms that provide an alternative to the use of pesticides and fertilizers, by reducing environmental and public health problems [30].…”

Maize responsiveness to Azospirillum brasilense: Insights into genetic control, heterosis and genomic prediction

“…In recent years, several Plant Growth-Promoting Bacteria (PGPB) have been isolated, and their beneficial effects on the production of phytohormones and biological nitrogen fixation (N) have been identified [1,2]. The presence of these mechanisms permits certain strains to be used commercially as inoculants, which is a sustainable alternative to the use of chemical fertilizers and to mitigate biotic and abiotic stress.…”

Respuesta agronómica de Phaseolus vulgaris a la biofertilización en campo

“…Sin embargo, diversos factores bióticos, como patógenos y virus, ocasionan considerables pérdidas económicas en las áreas de cultivo de Chiapas y Veracruz (López et al, 2007) que, aunados a la indiscriminada aplicación y encarecimiento de la arraigada fertilización nitrogenada y fosfatada requerida en la producción de este cultivo (Martínez-Viera et al, 2010;Sanchez-Yañez et al, 2014), obligan la búsqueda de alternativas capaces de resolver problemas relacionados con la seguridad alimentaria sin afectar los niveles de productividad, calidad e inocuidad deseados (Khan et al, 2016), ni dañar la fertilidad de los suelos, quebrantar la salud de los consumidores, el bienestar de los agricultores y el equilibrio ambiental (de Souza Vandenberghe et al, 2017).…”