ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Effects of antagonistic microorganisms on the post-harvest development of Colletotrichum gloeosporioides on mango.

Koomen, I.; Jeffries, P.;

Plant Pathology Year: 1993 Vol: 42 Issue: 2 Pages: 230-237 Ref: 26 ref.

1993

บทคัดย่อ

A total of 648 microorganisms, including bacteria, yeasts and filamentous fungi, were isolated from blossom, leaves and fruit of mango and tested for antagonism towards C. gloeosporioides [Glomerella cingulata] on malt extract agar. Of these, 121 organisms inhibited growth of the pathogen and were tested further for their ability to affect conidial germination: 45 bacteria and yeasts inhibited germination. These were inoculated onto mangoes artifically infected with G. cingulata and assessed for their potential to reduce the development of anthracnose lesions. Seven isolates were selected for a trial in the Philippines using freshly harvested fruit. This final screening procedure yielded 2 potential candidates for further trials, isolate 204 (identified as Bacillus cereus) and isolate 558 (identified as Pseudomonas fluorescens). In postharvest trials under commercial conditions, isolates 204 and 558 were both tested in combination with different application methods. Application of isolate 204 did not reduce disease development, whereas application of 558 significantly reduced anthracnose development. No additional benefit was achieved by incorporating the bacteria in adhesive material, peptone, fruit wax or sucrose polyester.