Resumo
As it is generally said, the red ring disease of coconut palm (Cocos nucifera L.) is caused by a nematode which is regularly found in the diseased tissues. Such a nematode was described by COBB in 1919 as Aphelenchus cocophilus, having been placed by GOODEY, in 1933, in the genus Aphelenchoides. The species has been found occurring in three States of this country (Alagoas, Sergipe and Bahia). However, the Authors received from the Instituto de Ecologia e Experimentação Agrícolas, in Rio de Janeiro, a few samples of coconut tissues badly infested. So, its area of distribution is considerably enlarged. A. cocophilus is so slender and delicate a form that descriptions based on preserved material are frequentely inadequate. Thus, the Authors took this opportunity to re-examine and redescribe the species, as it was suggested by GOODEY (1923), what had not previously been made by those brazilian workers who have dealt with the disease. The population studied generally agreed with those examined by COBB (1919) and GOODEY (1923) in the details given, except in the dimensions mainly of the tail, as it is shown in table 1, where the measurements of 5 females and 5 males are presented.
Constatação da moléstia do «anel vermelho» do coqueiro no Estado do Rio de Janeiro. Redescrição do agente causador - Aphelenchoides cocophilus (Cobb, 1919) Goodey, 1933 (Nematoda, aphelenchidae)* * Trabalho apresentado ao Segundo Congresso Panamericano de Agronomia, realizado nas Termas de S. Pedro (Est. de S. Paulo), de 29 de março a 6 de abril de 1954.
Luiz Gonzaga E. Lordello; Adiel Paes Leme Zamith
Escola Superior de Agricultura "Luiz de Queiroz" Universidade de São Paulo
SUMMARY
As it is generally said, the red ring disease of coconut palm (Cocos nucifera L.) is caused by a nematode which is regularly found in the diseased tissues. Such a nematode was described by COBB in 1919 as Aphelenchus cocophilus, having been placed by GOODEY, in 1933, in the genus Aphelenchoides.
The species has been found occurring in three States of this country (Alagoas, Sergipe and Bahia). However, the Authors received from the Instituto de Ecologia e Experimentação Agrícolas, in Rio de Janeiro, a few samples of coconut tissues badly infested. So, its area of distribution is considerably enlarged.
A. cocophilus is so slender and delicate a form that descriptions based on preserved material are frequentely inadequate. Thus, the Authors took this opportunity to re-examine and redescribe the species, as it was suggested by GOODEY (1923), what had not previously been made by those brazilian workers who have dealt with the disease.
The population studied generally agreed with those examined by COBB (1919) and GOODEY (1923) in the details given, except in the dimensions mainly of the tail, as it is shown in table 1, where the measurements of 5 females and 5 males are presented.
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LITERATURA CITADA
- # COBB, N. A., 1919 - A newly discovered nematode, Aphelenchus cocophilus n. sp., connected with a serious disease of the coconut palm. West Ind. Bull 17: 203-210.
- FERREIRA LIMA, A. D. & Hermenegildo Marques da Cruz, 1945 - O anel vermelho, grave doença do coqueiro. Div. Defesa San. Vegetal, Rio de Janeiro, Publ. n. 20, pp. 1-15. ests. 1-5, figs. 1-9.
- FILIPJEV, I. N. & J. H. Schuurmans Stekhoven Jr., 1941 - A manual oj agricultural Helminthology, pp. I-XV + 1-878. figs. 1-460. Leiden: E. J. Brill.
- GONÇALVES, R. D., 1936 - Doença do "annel vermelho" do coqueiro. O Biológico 2: 28-29.
- GONÇALVES, R. D., 1937 - A doença do "annel vermelho" do coqueiro. O Biológico 3: 102-103.
- GOODEY, T., 1923 - A review of the plant parasitic members of the genus Aphelenchus. J. Helminthology 1: 143-156.
- GOODEY, T., 1933 - Plant parasitic nematodes and the diseases they cause, pp. I-XII + 1-306, figs. 1-136. London: Methuen & Co. Ltd.
- GOODEY, T., 1951 - Soil and freshwater nematodes, a monograph, pp. I-XXVI + 1-390, figs. 1-190. London: Methuen & Co. Ltd.
- JOFFILY, José M., 1948- A doença do anel vermelho e sua ocorrência no Brasil. Bol. Serv. Nac. Pesq. Agron. 3: 1-41, figs. 1-18.
- LORDELLO, Luiz Gonzaga E., 1953 - Contribuição ao conhecimento dos nematódeos do solo de algumas regiões do Estado de S. Paulo, pp. I-IV + 1-75, ests. 1-5. Piracicaba, Escola Superior de Agricultura "Luiz de Queiroz": tese de doutoramento.
- LORDELLO, Luiz Gonzaga E., Adiel Paes Leme Zamith & O. J. Boock, 1954 - Novo nematódeo parasito da batatinha. Bragantia 13 (em impressão).
Datas de Publicação
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Publicação nesta coleção
02 Out 2012 -
Data do Fascículo
1954
