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Microbial Exudates as Biostimulants: Role in Plant Growth Promotion and Stress Mitigation
Microbes hold immense potential, based on the fact that they are widely acknowledged for their role in mitigating the detrimental impacts of chemical fertilizers and pesticides, which were extensively employed during the Green Revolution era. The consequence of this extensive use has been the degrad...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10594471/ https://www.ncbi.nlm.nih.gov/pubmed/37873814 http://dx.doi.org/10.3390/jox13040037 |
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author | Ansari, Mariya Devi, B. Megala Sarkar, Ankita Chattopadhyay, Anirudha Satnami, Lovkush Balu, Pooraniammal Choudhary, Manoj Shahid, Muhammad Adnan Jailani, A. Abdul Kader |
author_facet | Ansari, Mariya Devi, B. Megala Sarkar, Ankita Chattopadhyay, Anirudha Satnami, Lovkush Balu, Pooraniammal Choudhary, Manoj Shahid, Muhammad Adnan Jailani, A. Abdul Kader |
author_sort | Ansari, Mariya |
collection | PubMed |
description | Microbes hold immense potential, based on the fact that they are widely acknowledged for their role in mitigating the detrimental impacts of chemical fertilizers and pesticides, which were extensively employed during the Green Revolution era. The consequence of this extensive use has been the degradation of agricultural land, soil health and fertility deterioration, and a decline in crop quality. Despite the existence of environmentally friendly and sustainable alternatives, microbial bioinoculants encounter numerous challenges in real-world agricultural settings. These challenges include harsh environmental conditions like unfavorable soil pH, temperature extremes, and nutrient imbalances, as well as stiff competition with native microbial species and host plant specificity. Moreover, obstacles spanning from large-scale production to commercialization persist. Therefore, substantial efforts are underway to identify superior solutions that can foster a sustainable and eco-conscious agricultural system. In this context, attention has shifted towards the utilization of cell-free microbial exudates as opposed to traditional microbial inoculants. Microbial exudates refer to the diverse array of cellular metabolites secreted by microbial cells. These metabolites enclose a wide range of chemical compounds, including sugars, organic acids, amino acids, peptides, siderophores, volatiles, and more. The composition and function of these compounds in exudates can vary considerably, depending on the specific microbial strains and prevailing environmental conditions. Remarkably, they possess the capability to modulate and influence various plant physiological processes, thereby inducing tolerance to both biotic and abiotic stresses. Furthermore, these exudates facilitate plant growth and aid in the remediation of environmental pollutants such as chemicals and heavy metals in agroecosystems. Much like live microbes, when applied, these exudates actively participate in the phyllosphere and rhizosphere, engaging in continuous interactions with plants and plant-associated microbes. Consequently, they play a pivotal role in reshaping the microbiome. The biostimulant properties exhibited by these exudates position them as promising biological components for fostering cleaner and more sustainable agricultural systems. |
format | Online Article Text |
id | pubmed-10594471 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-105944712023-10-25 Microbial Exudates as Biostimulants: Role in Plant Growth Promotion and Stress Mitigation Ansari, Mariya Devi, B. Megala Sarkar, Ankita Chattopadhyay, Anirudha Satnami, Lovkush Balu, Pooraniammal Choudhary, Manoj Shahid, Muhammad Adnan Jailani, A. Abdul Kader J Xenobiot Review Microbes hold immense potential, based on the fact that they are widely acknowledged for their role in mitigating the detrimental impacts of chemical fertilizers and pesticides, which were extensively employed during the Green Revolution era. The consequence of this extensive use has been the degradation of agricultural land, soil health and fertility deterioration, and a decline in crop quality. Despite the existence of environmentally friendly and sustainable alternatives, microbial bioinoculants encounter numerous challenges in real-world agricultural settings. These challenges include harsh environmental conditions like unfavorable soil pH, temperature extremes, and nutrient imbalances, as well as stiff competition with native microbial species and host plant specificity. Moreover, obstacles spanning from large-scale production to commercialization persist. Therefore, substantial efforts are underway to identify superior solutions that can foster a sustainable and eco-conscious agricultural system. In this context, attention has shifted towards the utilization of cell-free microbial exudates as opposed to traditional microbial inoculants. Microbial exudates refer to the diverse array of cellular metabolites secreted by microbial cells. These metabolites enclose a wide range of chemical compounds, including sugars, organic acids, amino acids, peptides, siderophores, volatiles, and more. The composition and function of these compounds in exudates can vary considerably, depending on the specific microbial strains and prevailing environmental conditions. Remarkably, they possess the capability to modulate and influence various plant physiological processes, thereby inducing tolerance to both biotic and abiotic stresses. Furthermore, these exudates facilitate plant growth and aid in the remediation of environmental pollutants such as chemicals and heavy metals in agroecosystems. Much like live microbes, when applied, these exudates actively participate in the phyllosphere and rhizosphere, engaging in continuous interactions with plants and plant-associated microbes. Consequently, they play a pivotal role in reshaping the microbiome. The biostimulant properties exhibited by these exudates position them as promising biological components for fostering cleaner and more sustainable agricultural systems. MDPI 2023-10-01 /pmc/articles/PMC10594471/ /pubmed/37873814 http://dx.doi.org/10.3390/jox13040037 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Review Ansari, Mariya Devi, B. Megala Sarkar, Ankita Chattopadhyay, Anirudha Satnami, Lovkush Balu, Pooraniammal Choudhary, Manoj Shahid, Muhammad Adnan Jailani, A. Abdul Kader Microbial Exudates as Biostimulants: Role in Plant Growth Promotion and Stress Mitigation |
title | Microbial Exudates as Biostimulants: Role in Plant Growth Promotion and Stress Mitigation |
title_full | Microbial Exudates as Biostimulants: Role in Plant Growth Promotion and Stress Mitigation |
title_fullStr | Microbial Exudates as Biostimulants: Role in Plant Growth Promotion and Stress Mitigation |
title_full_unstemmed | Microbial Exudates as Biostimulants: Role in Plant Growth Promotion and Stress Mitigation |
title_short | Microbial Exudates as Biostimulants: Role in Plant Growth Promotion and Stress Mitigation |
title_sort | microbial exudates as biostimulants: role in plant growth promotion and stress mitigation |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10594471/ https://www.ncbi.nlm.nih.gov/pubmed/37873814 http://dx.doi.org/10.3390/jox13040037 |
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