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The Botrytis cinerea early secretome
José J Espino1, Gerardo Gutiérrez-Sánchez, Nélida Brito
1Departamento de Bioquímica y Biología Molecular, Universidad de La Laguna, La Laguna, Tenerife, Spain.
Proteomics
|June 22, 2010
Summary
The early secretome of Botrytis cinerea contains proteases and proteins that degrade plant defenses, aiding infection. This study identified 105 proteins, including many with unknown functions, crucial for fungal pathogenesis.
Area of Science:
- Plant pathology
- Mycology
- Proteomics
Background:
- The secretome of phytopathogenic fungi is critical for infection.
- Early secreted proteins during conidia germination are vital for establishing infection.
Purpose of the Study:
- To characterize the early secretome of Botrytis cinerea.
- To identify proteins secreted during the initial 16 hours of germination in a plant-simulating environment.
Main Methods:
- Germination of Botrytis cinerea conidia in a synthetic medium with plant compounds.
- Protein collection via double precipitation.
- Protein identification using 2-D electrophoresis, PMF, and LC-MS/MS.
Main Results:
- Identified 105 secreted proteins, including 11 distinct polypeptides via PMF.
- The early secretome is rich in proteases and proteins degrading plant defenses.
- A significant number of identified proteins have unknown functions.
Conclusions:
- The early secretome of Botrytis cinerea plays a key role in plant infection.
- Proteases and plant cell wall degrading enzymes are abundant in the early stages.
- Further research is needed to elucidate the function of unknown proteins in pathogenesis.
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