Naslov
Biological control of Sclerotinia sclerotiorum by Trichoderma atroviride in lettuce

Autori
Topolovec-Pintarić, Snježana ; Stvorić, Martina ; Kovaček , Ana-Maria ; Grubišić, Borna ; Pošta, Ana ; Pole, Lucia ; Mešić, Armin

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of abstracts of The 7th International Scientific Meeting: Mycology, Mycotoxicology, and Mycoses / - Novi Sad : Matica Srpska, 2022, 72-72

ISBN
978-86-7946-387-6

Skup
The 7th international scientific meeting "Mycology, mycotoxicology, and mycoses"

Mjesto i datum
Novi Sad, Srbija, 02.06.2022. - 03.06.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
antagonism ; beneficial fungi ; fungi–fungi interaction ; hyperparasitism

Sažetak
The fungus Sclerotinia sclerotiorum (Helotiales) is the causal of white rot, economically important disease of various crops in temperate climates. Sclerotium is the most important S. sclerotiorum resting body in nature because it remains viable and dormant for many years in the soil. Control measures such as solarization and fallow land are partially successful, but they are not feasible in many breeding conditions. The soil application of fungicides is environmentally unacceptable and limited to foliar application in vegetation. Therefore, the development of biological control is of great importance. Species of fungal genus Trichoderma are among the most commonly studied biocontrol microbes and are presently marketed as bio-control agents or active ingredients of biopesticides, biofertilizers, plant growth enhancers, and stimulants of natural resistance. The most represented species are T. harzianum and T. viride, and they are combined in 55% of commercial biofungicides on the international market. We tested antagonism of Croatian indigenous isolate T. atroviride against S. sclerotiorum, under laboratory and protected environments. In vitro assays showed excellent antagonisms to S. sclerotiorum evidencing hyperparasitic activity. The sclerotia were completely degraded after 2 months. In the greenhouse, the disease caused by S. sclerotiorum in lettuce was reduced by treating seedlings with a T.atroviride spore suspension. The lettuce infected with S. sclerotiorum and treated with T. atroviride were healthy and in better condition than untreated infected lettuce and also, than control, untreated uninfected lettuce.

Izvorni jezik
Engleski

Znanstvena područja
Biologija, Poljoprivreda (agronomija), Interdisciplinarne biotehničke znanosti

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