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Articles by Gustavo Henrique Silva Peixoto
Total Records ( 1 ) for Gustavo Henrique Silva Peixoto
  Lincon Rafael da Silva , Paulo Henrique Pereira Costa Muniz , Gustavo Henrique Silva Peixoto , Bruna Eliza Gonçalves Dias Luccas , João Batista Tavares da Silva and Sueli Corrêa Marques de Mello
  Background and Objective: Fungi of the genus Trichoderma have high versatility in the control of different plant diseases. Among the main mechanisms of action of these fungi against phytopathogenic fungi, the production of Volatile Organic Compounds (VOCs) is mentioned. These compounds are said to inhibit the mycelial growth of various fungal pathogens. The objective of this work was to evaluate the in vitro inhibition of the mycelial growth of Sclerotinia sclerotiorum by VOCs from six Trichoderma strains in different stages of development of the biocontrol agent. Materials and Methods: In this work, the in vitro evaluation of the mycelial growth of the phytopathogen S. sclerotiorum by VOCs from six Trichoderma strains was carried out: T. koningiopsis (CEN1386), T. asperelloides (CEN1397), T. longibrachiatum (CEN1399) T. lentiforme (CEN1416), T. perbedyi (CEN1389) and T. azevedoi (CEN1241). Observations were made at different stages of antagonist development: mycelial Growth Phase (GP), Sporulation Phase (SP) and paired with the Pathogen Phase (PP). Besides, the sporulation of the tested strains was quantified. Conclusion: In all experimental conditions, the VOCs produced by the CEN1241 strain showed a greater inhibitory effect, although the inhibition was less evident when the cultures of S. sclerotiorum were exposed in the GP phase of the antagonist. Greater sporulation was observed with T. lentiforme (CEN1416), a fact not related to a better ability to inhibit S. sclerotiorum, by VOCs.
 
 
 
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