Home About Browse Search

Åbonde, André, 2023. Biological control of verticillium stem striping disease on oilseed rape : fungi as friends and foes. First cycle, G2E. Uppsala: SLU, Dept. of Forest Mycology and Plant Pathology



The cultivation of oilseed rape faces challenges caused by pests and pathogens, and soil-borne pathogens such as Plasmodiaphora brassicae (clubroot) are among the main causes of disease.
Verticillium longisporum is another soil-borne pathogen, which causes the verticillium stem striping disease in Brassica plants, including oilseed rape. In this project the fungal biological control agent Clonostachys rosea was used in an attempt to utilize biological control of verticillium stem striping disease in oilseed rape. The main in planta experiment was perfomed to investigate this hypothesis,but the results showed no significant effect of C. rosea to prevent verticillium stem striping disease in oilseed rape. Three in vitro experiments were also performed to study the interactions between these two fungi, C. rosea and V. longisporum, and showed that C. rosea can inhibit the growth of V. longisporum in the in vitro setting. In summary, C. rosea show some potential of being able to control V. longisporum in an in vitro setting, but none in planta.


Odlingen av raps står inför utmaningar orsakade av skadedjur och patogener, och jordburna patogener som Plasmodiaphora brassicae (klumprotsjuka) är en av de huvudsakliga orsakerna till sjukdom. Verticillium longisporum är en annan jordburen patogen som orsakar kransmögel på Brassica-växter, inklusive raps. I det här arbetet testades den biologiska bekämpningssvampen Clonostachys rosea i ett försök att med hjälp av biologisk bekämpning skydda raps mot kransmögel
orsakad av V. longisporum. Ett in planta-försök utfördes för att testa denna hypotes, men resultatet visade ingen signifikant effekt av C. rosea för att bekämpa kransmögel orsakad av V. longisporum på raps. Tre mindre in vitro-försök utfördes också för att undersöka hur de två svamparna C. rosea och V. longisporum interagerar med varandra. De visade att C. rosea kan hämma V. longisporums tillväxt i en in vitro-miljö. Sammanfattningsvis visade C. rosea en viss potential att kunna bekämpa V. longisporum i en in vitro-miljö, men uppvisade ingen effekt in planta.

Main title:Biological control of verticillium stem striping disease on oilseed rape
Subtitle:fungi as friends and foes
Authors:Åbonde, André
Supervisor:Tzelepis, Georgios and Karlsson, Magnus and Dubey, Mukesh
Examiner:Friberg, Hanna
Volume/Sequential designation:UNSPECIFIED
Year of Publication:2023
Level and depth descriptor:First cycle, G2E
Student's programme affiliation:NY011 Agricutural programme - Soil/Plant, 300.0hp
Supervising department:(NL, NJ) > Dept. of Forest Mycology and Plant Pathology
Keywords:Biological control, Oilseed rape, Clonostachys rosea, Verticillium longisporum, Verticllium stem striping disease
Permanent URL:
Deposited On:30 Aug 2023 13:03
Metadata Last Modified:31 Aug 2023 01:03

Repository Staff Only: item control page