What is limit of biological control against pathogen in crop cultivating?4 answersThe effectiveness of biological control against pathogens in crop cultivation is limited due to various factors. While biological control methods involving natural enemies like bacteria, fungi, and viruses can be successful, the complexity of ecological processes and interactions between biocontrol agents and pathogens often hinders consistent control efficacy. Additionally, the economic feasibility of mass-producing biocontrol agents is crucial for the widespread implementation of this approach. Although biological control is a valuable tool alongside chemical pesticides and other management strategies, challenges such as variability in control efficacies, environmental conditions, and the need for a deeper understanding of microbial interactions underscore the limitations of relying solely on biological control for comprehensive pathogen management in agriculture. Integrating biological control with other methods like genetic resistance may offer a more sustainable solution to combat plant diseases effectively.
What are beneficial usages for Bacillus subtilis in agriculture?4 answersBacillus subtilis has several beneficial usages in agriculture. It can enhance crop production and soil health as a plant growth-promoting rhizobacteria (PGPR). Bacillus subtilis can promote plant growth by producing plant hormones, solubilizing phosphorus and potassium, and inducing systemic resistance. It can also improve soil fertility and reduce pests and disease prevalence. Bacillus subtilis strains have been found to be effective biocontrol agents against phytopathogens and pests. Additionally, Bacillus subtilis can be used in bioremediation of contaminated soils and in the production of bio-chemicals for plant disease control. The use of Bacillus subtilis in agriculture can contribute to sustainable and eco-friendly practices.
How can Trichoderma be used to control plant diseases?5 answersTrichoderma can be used to control plant diseases through various mechanisms. It acts as a biocontrol agent by competing with pathogens, producing antibiotics, and parasitizing them. Trichoderma also promotes plant growth, improves nutrient utilization efficiency, and enhances plant resistance. It can induce plant systemic resistance and activate plant defense responses against biotic and abiotic stresses. Trichoderma-based formulations, either alone or in combination with other beneficial microbes, have been used to control and prevent plant diseases. The application of Trichoderma, along with bokashi fertilizer from agricultural waste, has been found to increase plant growth, production, and resistance to plant pathogens. Overall, Trichoderma offers a safe, low-cost, and eco-friendly approach to managing plant diseases and promoting sustainable agriculture.
What are the most effective biological control agents against fungal pathogens?4 answersTrichoderma atroviride SC1 and T. paratroviride RTFT014 have been identified as effective biological control agents against fungal pathogens. These agents have shown significant reduction in infections caused by various canker pathogens in almond trees, including Cytospora plurivora, Eutypa lata, Neofusicoccum parvum, and Neoscytalidium dimidiatum. In field trials, T. atroviride SC1 and T. paratroviride RTFT014 protected almond pruning wounds against E. lata and N. parvum as efficiently as the recommended fungicide, thiophanate-methyl. Streptomyces spp. have also been found to be effective biological control agents against fungal plant pathogens, reducing disease by 56% compared to negative control groups. These bacteria have shown efficacy against a wide range of fungal pathogens, with the highest effectiveness observed against Fusarium oxysporum and diseases of Solanum lycopersicum. Streptomyces spp. have the potential to be used as environmentally friendly and compatible biocontrol agents in organic agriculture.
Could you please advise me for some publish paper about Bacillus subtilis to control plant pathologies?5 answersBacillus subtilis has been studied extensively for its potential in controlling plant pathogens and promoting plant growth. Several papers have investigated the abilities of Bacillus subtilis strains and their metabolites in inhibiting the growth of fungal plant pathogens and enhancing crop productivity. Studies have shown that Bacillus subtilis strains produce lipopeptides such as fengycin, surfactin, mycosubtilin, and pilpastatin, which have broad-spectrum antifungal properties. Experimental evolution studies have revealed parallel evolution and species-specific adaptation of Bacillus subtilis strains on different plant species, indicating their ability to adapt to different host plants. Comparative analysis of various environmental Bacillus subtilis strains has provided insights into the chemodiversity of secondary metabolites produced by these strains, which contribute to their biocontrol abilities. Additionally, the influence of plant pathogens on the production of lipopeptides by Bacillus subtilis has been investigated, highlighting the importance of biotic interactions in optimizing culture conditions for biocontrol applications. These papers provide valuable information on the use of Bacillus subtilis for controlling plant pathologies and offer insights for sustainable agriculture practices.
What are the benefits of biological controls for plant diseases?5 answersBiological controls for plant diseases offer several benefits. They are eco-friendly and reduce the use of harmful chemicals, thus minimizing negative impacts on the environment and consumer health. Biological control agents, such as fungi and bacteria, have been identified and show promise for disease management. These agents provide sustainable alternatives to synthetic chemicals and can be used to control a variety of pathogens. Additionally, the use of biocontrol plants and plant-microbe interactions can help in controlling plant diseases and promoting sustainable development. Modern biotechnological approaches, such as marker-assisted molecular breeding and CRISPR-Cas, also offer potential for improving plant defense and providing resistance against pathogens. Overall, biological controls offer effective and sustainable methods for managing plant diseases and reducing reliance on chemical treatments.