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Infection Process of Cercospora coffeicola on Coffee Leaf
Author(s) -
Souza André Gomes Coelho,
Rodrigues Fabrício Ávila,
Maffia Luiz Antônio,
Mizubuti Eduardo Seiti Gomide
Publication year - 2011
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.2010.01710.x
Subject(s) - biology , cercospora , conidium , inoculation , appressorium , spore , botany , germination , parenchyma , leaf spot , horticulture
Brown eye spot, caused by Cercospora coffeicola , is an important disease of coffee. Both adaxial and abaxial leaf surfaces were inoculated with a conidial suspension of C. coffeicola . Samples were collected from 4 to 168 h after inoculation and then again at 35 days. Germinated conidia showed positive tropism to stomata where attempted penetrations occurred. Appressoria were not observed. After penetration, C. coffeicola colonized the lacunous parenchyma both inter and intracellularly. Sporulation occurred through or around the stomata. Results from this study provide new insights into the infection process of C. coffeicola on coffee leaf.