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Evidence for Pollen and Seed Transmission of the Coconut Cadang‐Cadang Viroid in Cocos nucifera
Author(s) -
Pacumbaba E. P.,
Zelazny B.,
Orense J. C.,
Rillo E. P.
Publication year - 1994
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.1439-0434.1994.tb00005.x
Subject(s) - viroid , biology , cocos nucifera , pollen , botany , plantlet , horticulture , plant virus , virology , tissue culture , in vitro , virus , biochemistry
Transmission of the coconut cadang‐cadang viroid through seednuts and pollen was demonstrated experimentally. F 1 progenies of healthy and infected parents pollinated with diseased pollen contained the viroid and exhibited disease symptoms 6 years after germination. The viroid was also detected in seedlings, embryos and plantlets grown in vitro originating from naturally infected palms. This study provides the first evidence for a natural mode of spread of cadang‐cadang. However, epidemiological observations suggest that this is not the only or necessarily the most common route of field transmission.