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Alternative control of Corynespora cassiicola in soybean plants by using crude preparations of Streptomyces scabies or Lentinula edodes (shiitake)

Grant number: 17/23916-1
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): March 01, 2018
Effective date (End): December 31, 2018
Field of knowledge:Agronomical Sciences - Agronomy - Plant Health
Principal researcher:Sérgio Florentino Pascholati
Grantee:Mônica Mieko Nakanishi Tamura
Home Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil


The soybean target spot, caused by Corynespora cassiicola, is a final cycle disease that causes significant losses in yield. Thus, the search about methods to control this disease has increased. There are many methods to control diseases, such as the alternative control where a biotic or abiotic agent can control a specific pathogen by acting on the plant. One of the action way of this agent is the induction of resistance as observed with Streptomyces scabies and Lentinula edodes. In this way, the project has the objective of evaluating the effect of crude preparations of Streptomyces scabies, including the phytotoxin thaxtomine, and preparations from Lentinula edodes (Shiitake) - protein fractions - as potential resistance inducers in soybean cultivars susceptible to the target spot, under greenhouse conditions or in detached leaves under laboratory conditions. Disease severity will be evaluated by using a diagrammatic scale. In addition, tests in vitro regarding the direct inhibitory potential of the preparations on the mycelial growth of the pathogen will be carried out. Based upon the data to be obtained, this project aims to contribute to the knowledge and development of alternative control of C. cassiicola. (AU)

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