Biological control of Colletotrichum gloeosporioides (Penz.) Penz. & Sacc. by epiphytic bacteria isolated from Vitis vinifera (cv Thompson Seedless) grape berry. Issue 2 (1st February 2023)

• Record Type: Journal Article
• Authors: Ranade, Yogita; Pathak, Pranav; Chandrashekar, Madhura; Saha, Sujoy
• Is Part Of: Biocontrol science and technology. Volume 33:Issue 2(2023)
• Page Start: 173
• Page End: 189
• Publication Date: 2023-02-01
• Subjects: Vineyard -- bacteria -- antagonism -- Colletotrichum gloeosporioides -- field evaluation; Pests -- Biological control -- Periodicals; Weeds -- Biological control -- Periodicals; Pesticides -- Environmental aspects -- Periodicals; Plants, Protection of -- Periodicals; Plants -- Biological control -- Periodicals; Agricultural pests -- Control -- Periodicals; Pest Control, Biological -- Periodicals; 632.96
• DOI: 10.1080/09583157.2023.2167933
• Languages: English
• ISSNs: 0958-3157

Abstract

ABSTRACT: Anthracnose leaf spot and ripe rot disease, caused by Colletotrichum gloeosporioides in India, is of economic importance. The objective of the investigation was to isolate and characterise bacterial antagonists from the grape berry surface. Nine bacteria out of the 46 that were isolated significantly inhibited C. gloeosporioides in a dual culture assay. Six of these nine microorganisms demonstrated pathogen inhibition by producing extracellular volatile and non-volatile compounds. Bacteria SB5, SB13, and SB15 were chosen for the polyhouse experiment because they demonstrated the best disease control in a detached leaf assay. At 1 × 10 6 CFU/ml of bacterial concentration, both curative and preventive trials showed significant disease inhibition. Based on morphological and molecular characterisation the bacteria were identified as Bacillus species. All three strains could be effectively used for the biological control of C. gloeosporioides .