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An overview of pollen morphology and its systematic significance in the subfamily Arbutoideae of the Ericaceae

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Title: An overview of pollen morphology and its systematic significance in the subfamily Arbutoideae of the Ericaceae
Other Titles: ツツジ科アルブトゥス亜科の花粉形態の大要とその体系学的意義
Authors: Sarwar, A.K.M. Golam1 Browse this author
Ito, T.2 Browse this author
Takahashi, H.3 Browse this author
Authors(alt): サルワル, A.K.M. ゴラム1
伊藤, 利章2
高橋, 英樹3
Keywords: stenopalynous
permanent tetrads
exine sculpture
light microscopy
scanning electron microscopy
transmissionelectron microscopy
Issue Date: Dec-2008
Publisher: 日本花粉学会
Journal Title: 日本花粉学会会誌
Journal Title(alt): Japanese Journal of Palynology
Volume: 54
Issue: 2
Start Page: 79
End Page: 92
Abstract: Subfamily Arbutoideae (Ericaceae) comprises four genera (Arbutus, Arctostaphylos, Comarostaphylos and Ornithostaphylos) and 81 species. We have examined the pollen morphology of 17 species from three of these genera: Arbutus, Arctostaphylos, Comarostaphylos representing using light microscopy (LM) and scanning electron microscopy (SEM) and also, for selected species, transmission electron microscopy (TEM). The Arbutoideae are generally stenopalynous; the four 3-colpor(-oid)ate grains are united in compact rounded permanent tetrads. No pollen morphological characters or character combinations distinguish Arbutoideae within the Ericaceae. However, within the subfamily, Arctostaphylos and Comarostaphylos commonly have smaller pollen tetrads with a thin perforated septum, while Arbutus pollen tetrads are usually larger and characterized by thicker septum without distinct perforations. The rugulate apocolpial exine sculpture of Arctostaphylos is usually less distinct than the coarser rugulate ectexine often observed for the pollen of Arbutus and Comarostaphylos.
Type: article (author version)
Appears in Collections:北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: Sarwar, A.K.M. Golam

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