Potential of Streptomyces and Its Secondary Metabolites for Biocontrol of Fungal Plant Pathogens

Dave, Anand; Ingle, Sanjay

doi:10.1007/978-3-031-04805-0_1

Cited by 3 publications

(1 citation statement)

References 73 publications

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“…Soil actinobacteria are an important source of bioactive substances, and these include antibiotics, anticancer, and antioxidants [ 4 ]. Among the actinobacteria, Streptomyces is well known for being a rich source of antibiotics and other functional compounds that can be used in medicine and agriculture [ 5 , 6 ]. Moreover, some Streptomyces can produce pigments to protect their cells from environmental stress [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Actinomycins from Soil-Inhabiting Streptomyces as Sources of Antibacterial Pigments for Silk Dyeing

et al. 2023

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Actinobacteria produce a broad spectrum of bioactive substances that are used in the pharmaceutical, agricultural, and biotechnology industries. This study investigates the production of bioactive substances in Streptomyces, isolated from soil under five tropical plants, focusing on their potential as natural antibacterial dyes for silk fabrics. Out of 194 isolates, 44 produced pigments on broken rice as a solid substrate culture. Eight antibacterial pigmented isolates from under Magnolia baillonii (TBRC 15924, TBRC 15927, TBRC 15931), Magnolia rajaniana (TBRC 15925, TBRC 15926, TBRC 15928, TBRC 15930), and Cinnamomum parthenoxylon (TBRC 15929) were studied in more detail. TBRC 15927 was the only isolate where all the crude extracts inhibited the growth of the test organisms, Staphylococcus epidermidis TISTR 518 and S. aureus DMST 4745. The bioactive compounds present in TBRC 15927 were identified through LC-MS/MS analysis as belonging to the actinomycin group, actinomycin D (or X1), X2, and X0β. Also, the ethyl acetate crude extract exhibited non-toxicity at an IC50 value of 0.029 ± 0.008 µg/mL on the mouse fibroblast L-929 assay. From the 16S rRNA gene sequence analysis, TBRC 15927 had 100% identity with Streptomyces gramineus JR-43T. Raw silk dyed with the positive antimicrobial TBRC 15927 extract (8.35 mg/mL) had significant (>99.99%) antibacterial properties. Streptomyces gramineus TBRC 15927 is the first actinomycin-producing strain reported to grow on broken rice and shows promise for antibacterial silk dyeing.

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Section: Introductionmentioning

confidence: 99%

Actinomycins from Soil-Inhabiting Streptomyces as Sources of Antibacterial Pigments for Silk Dyeing

et al. 2023

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Biocontrol potential of native Algerian bacteria isolated from greenhouses against Botrytis cinerea and Oidium neolycopersici on tomato

Foughalia,

Hamiroune,

Chandeysson

et al. 2024

J Plant Dis Prot

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Harnessing Plant Growth–Promoting and Wilt‐Controlling Biopotential of a Consortium of Actinomycetes and Mycorrhizae in Pigeon Pea

Dave,

Ingle,

Perveen

et al. 2024

Journal of Phytopathology

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Fusarium‐induced wilt significantly affects the cultivation and yield of pigeon peas. This warrants sustainable disease management while promoting plant growth. The present study investigated the biopotential of coinoculation of Streptomyces pseudogriseolus S‐9 and Rhizophagus irregularis for plant growth promotion and mitigation of the impact of Fusarium wilt on pigeon pea over three seasons at pot and field levels. Pigeon pea plants were subjected to Fusarium wilt stress and treated with different inoculation strategies, including single and combined applications of S. pseudogriseolus S‐9 and R. irregularis. Plant growth parameters and yields were assessed to evaluate the efficacy of the coinoculation. In the pot experiment, T‐6 treatment resulted in the longest root (62.56 ± 0.01 cm) and shoot (70.24 ± 0.01 cm) lengths compared to the application of commercial biofungicide T‐8 (Trichoderma). This treatment also significantly influenced the yield of potted plants. It resulted in the highest fresh root weight (62.27 ± 0.01 g), fresh shoot weight (70.24 ± 0.02 g), maximum root (55.25 ± 0.01 g) and shoot dry weights (52.25 ± 0.01 g). In the field experiment, pigeon pea plants treated with the bioinoculant also demonstrated a substantial increase (р ≤ 0.05) in total grain yield, the weight of 100 grains, and the number of filled grains compared to the control group in all experimental seasons. In vitro, antagonism assay of compatibility of mycorrhizae and bacteria showed good activity using powder formulation. Thus, the consortium application inspired the broad application of Streptomyces and Trichoderma as effective bioinoculants for wilt management and yield improvement in pigeon peas.

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Potential of Streptomyces and Its Secondary Metabolites for Biocontrol of Fungal Plant Pathogens

Cited by 3 publications

References 73 publications

Actinomycins from Soil-Inhabiting Streptomyces as Sources of Antibacterial Pigments for Silk Dyeing

Actinomycins from Soil-Inhabiting Streptomyces as Sources of Antibacterial Pigments for Silk Dyeing

Biocontrol potential of native Algerian bacteria isolated from greenhouses against Botrytis cinerea and Oidium neolycopersici on tomato

Harnessing Plant Growth–Promoting and Wilt‐Controlling Biopotential of a Consortium of Actinomycetes and Mycorrhizae in Pigeon Pea

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