Influence of the genus Bacillus bacteria on the content of H2O2 and the activity of hydrolases and their inhibitors in potato plants during Phytophthora infestans Mont. de Bary infection

Yarullina, L. G.; Sorokan, A. V.; Tsvetkov, V. O.; Бурханова, Г. Ф.; Kalatskaja, J. N.

doi:10.1051/bioconf/20202302010

Cited by 3 publications

(1 citation statement)

References 28 publications

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“…In addition to pathogens, numerous beneficial microorganisms trigger these immune responses [ 109 , 110 ]. Accordingly, systemic resistance against different Phytophthora species can be induced by Trichoderma [ 111 , 112 , 113 , 114 , 115 ], Bacillus velezensis [ 116 ], B. subtilis [ 115 , 117 ], B. thuringiensis [ 118 ], B. vallismortis [ 119 ], B. amyloliquefaciens [ 120 ], Burkholderia sp. [ 121 ], and the microorganisms present in aqueous compost extracts [ 122 ], among many others.…”

Section: Introductionmentioning

confidence: 99%

Biocontrol of Diseases Caused by Phytophthora capsici and P. parasitica in Pepper Plants

Santos

Diánez

Sánchez-Montesinos

et al. 2023

JoF

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The main objective of this study was to evaluate the ability of Trichoderma aggressivum f. europaeum, T. longibrachiatum, Paecilomyces variotii, and T. saturnisporum as biological control agents (BCAs) against diseases caused by P. capsici and P. parasitica in pepper. For this purpose, their antagonistic activities were evaluated both in vitro and in vivo. We analysed the expression patterns of five defence related genes, CaBGLU, CaRGA1, CaBPR1, CaPTI1, and CaSAR8.2, in leaves. All BCAs showed a high in vitro antagonistic activity, significantly reducing the mycelial growth of P. capsici and P. parasitica. The treatments with T. aggressivum f. europaeum, T. longibrachiatum, and P. variotii substantially reduced the severity of the disease caused by P. capsici by 54, 76, and 70%, respectively, and of the disease caused by P. parasitica by 66, 55, and 64%, respectively. T. saturnisporum had the lowest values of disease reduction. Reinoculation with the four BCAs increased the control of both plant pathogens. Markedly different expression patterns were observed in the genes CaBGLU, CaRGA1, and CaSAR8.2. Based on the results, all four BCAs under study could be used as a biological alternative to chemicals for the control of P. capsici and P. parasitica in pepper with a high success rate.

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Section: Introductionmentioning

confidence: 99%

Biocontrol of Diseases Caused by Phytophthora capsici and P. parasitica in Pepper Plants

Santos

Diánez

Sánchez-Montesinos

et al. 2023

JoF

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Common Bacillus mitigate tomato verticillium wilt and bacterial specks when combined with an essential oil extract

Es-sahm,

Esserti,

Dich

et al. 2024

Rhizosphere

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Improving the Biocontrol Potential of Endophytic Bacteria Bacillus subtilis with Salicylic Acid against Phytophthora infestans-Caused Postharvest Potato Tuber Late Blight and Impact on Stored Tubers Quality

et al. 2022

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Potato (Solanum tuberosum L.) tubers are a highly important food crop in many countries due to their nutritional value and health-promoting properties. Postharvest disease caused by Phytophthora infestans leads to the significant decay of stored potatoes. The main objective of this study was to evaluate the effects of the endophytic bacteria, Bacillus subtilis (strain 10–4), or its combination with salicylic acid (SA), on some resistance and quality traits of stored Ph. infestans-infected potato tubers. The experiments were conducted using hydroponically grown potato mini-tubers, infected prior to storage with Ph. infestans, and then coated with B. subtilis, alone and in combination with SA, which were then stored for six months. The results revealed that infection with Ph. infestans significantly increased tuber late blight incidence (up to 90–100%) and oxidative and osmotic damage (i.e., malondialdehyde and proline) in tubers. These phenomena were accompanied by a decrease in starch, reducing sugars (RS), and total dry matter (TDM) contents and an increase in amylase (AMY) activity. Moreover, total glycoalkaloids (GA) (α-solanine, α-chaconine) notably increased in infected tubers, exceeding (by 1.6 times) permissible safe levels (200 mg/kg FW). Treatments with B. subtilis or its combination with SA decreased Ph. infestans-activated tuber late blight incidence (by 30–40%) and reduced oxidative and osmotic damages (i.e., malondialdehyde and proline) and AMY activity in stored, infected tubers. Additionally, these treatments decreased pathogen-activated GA accumulation and increased ascorbic acid in stored tubers. Thus, the results indicated that endophytic bacteria B. subtilis, individually, and especially in combination with SA, have the potential to increase potato postharvest resistance to late blight and improve tuber quality in long-term storage.

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Influence of the genus Bacillus bacteria on the content of H₂O₂ and the activity of hydrolases and their inhibitors in potato plants during Phytophthora infestans Mont. de Bary infection

Cited by 3 publications

References 28 publications

Biocontrol of Diseases Caused by Phytophthora capsici and P. parasitica in Pepper Plants

Biocontrol of Diseases Caused by Phytophthora capsici and P. parasitica in Pepper Plants

Common Bacillus mitigate tomato verticillium wilt and bacterial specks when combined with an essential oil extract

Improving the Biocontrol Potential of Endophytic Bacteria Bacillus subtilis with Salicylic Acid against Phytophthora infestans-Caused Postharvest Potato Tuber Late Blight and Impact on Stored Tubers Quality

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