Technological intervention in rhizosphere of tomato plants: a case study

Abstract

Intensive cultivation of tomato plants and excessive use of fertilizers to increase product yield cause environmental problems and depletion of natural resources. Different microorganisms selected from the rhizosphere are used to reduce fertilizer application and increase plant nutrition and development. Plant growth–promoting rhizobacteria (PGPR) are used as biological fertilizers due to their beneficial effects on plant growth. Biofertilizers are of great importance for sustainable agriculture. Rhizobacteria show many changes in plants and soil with specialized molecules and signals. It is seen that the interactions of rhizobacteria in the rhizosphere are important for agricultural use. Metabolites, which are effective on plant metabolism, also play an important role in stimulating plants against stress. Metabolites such as auxin, cytokinin, gibberellin, ethylene, and abscisic acid produced by rhizobacteria are important in creating host tolerance against stress. In addition, these metabolites help to increase resistance against stress, promote plant growth, improve soil organic matter content, and dissolve mineral phosphate and other nutrients.; Generally, rhizobacteria are also involved in nutrition and plant health of tomatoes. The effects of PGPR on plant physiology and the rhizosphere significantly change traditional practices regarding plant nutrition and defense mechanisms. Genetic variation in microbial species reveals that microorganisms with high potential can be identified by adapting to different environmental conditions. Therefore there is a need for active microorganism species to be selected under wide trial conditions. © 2024 Elsevier Inc. All rights reserved.