Topolovec-Pintarić, Snježana; Kovaček, Ana Maria; Malev, Olga; Kušan, Ivana; Matočec, Neven; Pošta, Ana; Pole, Lucia; Mešić, Armin (2025) Biological Control of Sclerotinia sclerotiorum on Greenhouse Lettuce Using Trichoderma koningiopsis Agg. Microbiology Research, 16 (2). ISSN 2036-7481
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Abstract
The lettuce drop or white mold is an economically important disease as the causal fungus Sclerotinia sclerotiorum can infect the lettuce at any stage of plant development. Polyphagous nature of S. sclerotiorum, the longevity of soil-borne sclerotia and air-borne ascospores makes the control difficult. Chemical fungicides are available only for foliar application against infections by ascospores so, the development of bio-control is of great importance. We tested antagonism of native isolate T. koningiopsis agg. (Hypocreales) (STP8) under laboratory and greenhouse environments. In vitro tests showed excellent STP8 antagonisms to S. sclerotiorum evidencing hyperparasitic activity on mycelia and sclerotia as well as antibiosis. The sclerotia were completely degraded after two months. In the greenhouse, infection of lettuce with S. sclerotiorum was reduced by treating the seedlings with an STP8 spore suspension. Uninfected plants treated with STP8 were of the best quality based on morphological parameters, confirming the ability of STP8 to promote lettuce growth. Even the infected lettuce treated with STP8 were healthier and in better condition than the control lettuce, suggesting that STP8 was also enhancing plant defense system.
| Item Type: | Article | ||||||||
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| Uncontrolled Keywords: | antagonism; Ascomycota; beneficial fungi; Lactuca sativa L.; mycoparasitism; white mold | ||||||||
| Subjects: | NATURAL SCIENCES > Biology NATURAL SCIENCES > Biology > Microbiology BIOTECHNICAL SCIENCES > Agronomy |
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| Divisions: | Division for Marine and Enviromental Research Division of Materials Chemistry |
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| Depositing User: | Ana Zečević | ||||||||
| Date Deposited: | 02 May 2025 10:49 | ||||||||
| URI: | http://fulir.irb.hr/id/eprint/9800 | ||||||||
| DOI: | 10.3390/microbiolres16020035 |
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