Control Strategies of Clubroot Disease Caused by Plasmodiophora brassicae

Microorganisms, Journal Year: 2022, Volume and Issue: 10(3), P. 620 - 620

Published: March 14, 2022

The clubroot disease caused by the soil-borne pathogen Plasmodiophora brassicae is one of most important diseases cruciferous crops worldwide. As with many plant pathogens, spread closely related to cultivation suitable host plants. In addition, temperature and water availability are crucial determinants for occurrence reproduction disease. Current global changes contributing widespread incidence On hand, trade high prices leading an increase in rapeseed other climate change improving living conditions P. temperate climates its increased occurrence. Well-known ways control efficiently this include arable farming strategies: growing plants wide crop rotations, liming contaminated soils, using resistant Since chemical not possible or ecologically compatible, more alternative options being investigated. review, we address challenges control, a focus on biological options.

Language: Английский

---

Disease Inhibiting Effect of Strain Bacillus subtilis EG21 and Its Metabolites Against Potato Pathogens Phytophthora infestans and Rhizoctonia solani

Phytopathology, Journal Year: 2022, Volume and Issue: 112(10), P. 2099 - 2109

Published: May 10, 2022

Potato production worldwide is plagued by several disease-causing pathogens that result in crop and economic losses estimated to billions of dollars each year. To this day, synthetic chemical applications remain the most widespread control strategy despite their negative effects on human environmental health. Therefore, obtainment superior biocontrol agents or naturally produced metabolites replace fungicides be integrated into practical pest management strategies has become one main targets modern agriculture. Our focus present study was elucidate antagonistic potential a new strain identified as Bacillus subtilis EG21 against potato Phytophthora infestans Rhizoctonia solani using vitro screening assays. Microscopic examination interaction between R. showed extended damage fungal mycelium, while displayed strong anti-oomycete zoosporecidal effect P. infestans. Mass spectrometry (MS) analysis revealed antifungal cyclic lipopeptides surfactins (C12 C19). Further characterization confirmed its ability produce siderophores extracellular lytic enzymes cellulase, pectinase chitinase. The activity cell-free culture filtrate (CF) found stable at high-temperature/pressure treatment extreme pH values not affected proteinase K treatment. Disease-inhibiting CF infection leaves tubers, respectively. Biotechnological microbial bioproducts for protection hold great promise develop effective, environment-friendly sustainable strategies. [Formula: see text] Copyright © 2022 Author(s). This an open access article distributed under CC BY-NC-ND 4.0 International license.

Language: Английский

---

A Salt-Tolerant Strain of Trichoderma longibrachiatum HL167 Is Effective in Alleviating Salt Stress, Promoting Plant Growth, and Managing Fusarium Wilt Disease in Cowpea

Journal of Fungi, Journal Year: 2023, Volume and Issue: 9(3), P. 304 - 304

Published: Feb. 27, 2023

Salt stress is a constraint factor in agricultural production and restricts crops yield quality. In this study, salt-tolerant strain of Trichoderma longibrachiatum HL167 was obtained from 64 isolates showing significant salt tolerance antagonistic activity to Fusarium oxysporum. T. inhibited F. oxysporum at rate 68.08% 200 mM NaCl, penetrated under eventually induced hyphae breaking, according electron microscope observations. the pot experiment, pretreatment cowpea seedlings with reduced accumulation level ROS tissues damage caused by stress. Furthermore, field it discovered that treating before root inoculation can successfully prevent control development wilt, best effect reaching 61.54%. Moreover, application HL 167 also improved K+/Na+ ratio cowpea, alleviated ion toxicity on found effectively colonize roots. HL167, which normally survives saline-alkali environments has functions disease prevention plant growth promotion capabilities, important research implications for improving soil environment sustainable green agriculture.

Language: Английский

---

Bacillaene, sharp objects consist in the arsenal of antibiotics produced byBacillus

Journal of Cellular Physiology, Journal Year: 2023, Volume and Issue: unknown

Published: Feb. 15, 2023

Bacillus species act as plant growth-promoting rhizobacteria (PGPR) that can produce a large number of bioactive metabolites. Bacillaene, linear polyketide/nonribosomal peptide produced by strains, is synthesized the trans-acyltransferase polyketide synthetase. The complexity chemical structure, particularity biosynthesis, potent bioactivity, and important role competition make an ideal antibiotic weapon to resist other microbes maintain optimal rhizosphere environment. This review provides updated view structural features, biological activity, biosynthetic regulators pathways, competitive bacillaene during survival.

Language: Английский

---

Symphony of survival: Insights into cross-talk mechanisms in plants, bacteria, and fungi for strengthening plant immune responses

Microbiological Research, Journal Year: 2024, Volume and Issue: 285, P. 127762 - 127762

Published: May 16, 2024

Language: Английский

---