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Mode of Pollen-Tube Growth in Pistils of Myrica rubra (Myricaceae): A Comparison with Related Families
Author(s) -
Akiko Sogo,
Hiroshi Tobe
Publication year - 2005
Publication title -
annals of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.567
H-Index - 176
eISSN - 1095-8290
pISSN - 0305-7364
DOI - 10.1093/aob/mcj015
Subject(s) - biology , pollen tube , gynoecium , pollen , myrica rubra , botany , mode (computer interface) , pollination , stamen , computer science , operating system
It is generally known that fertilization is delayed for more than a few weeks after pollination in Fagales. Recent studies showed that, during that period, pollen tubes grew in pistils in close association with the development of the ovule in a five-step process in Casuarina (Casuarinaceae) and a four-step process in Alnus (Betulaceae). The number of pollen tubes was reduced from many to one, a fact suggesting that delayed fertilization plays a role for gametophyte selection. Myrica (Myricaceae) also shows delayed fertilization for >2 weeks after pollination, but nothing is known of how pollen tubes grow in the pistil during that period.

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