NDLI: Localization of arabinogalactan proteins in anther, pollen, and pollen tube of Nicotiana tabacum L.

Content Provider	Springer Nature Link
Author	Qin, Y. Chen, D. Zhao, J.
Copyright Year	2007
Abstract	Western blot analysis indicated the presence of two epitopes recognized by the anti-arabinogalactan protein antibodies JIM13 and LM2 and the absence of the JIM4 epitope in mature tobacco anthers. Immunoenzyme localization of arabinogalactan proteins (AGPs) with JIM13 showed that AGPs accumulate mainly at the early stages of anther development. AGP content and distribution were also investigated at the ultrastructural level in pollen tubes grown in vivo and in vitro. Abundant AGPs were present in the transmitting tissue of styles, and the AGP content of the extracellular matrix changed during pollen tube growth. In pollen tubes, immunogold particles were mainly distributed in the cell wall and cytoplasm, especially around the peripheral region of the generative-cell wall. β-D-Glucosyl Yariv reagent, which specifically binds to AGPs, caused slow growth of pollen tubes and reduced immunogold labeling of AGPs with JIM13 in vitro. These data suggest that AGPs participate in male gametogenesis and pollen tube growth and may be important surface molecules in generative and sperm cells.
Starting Page	43
Ending Page	53
Page Count	11
File Format	PDF
ISSN	0033183X
Journal	Protoplasma
Volume Number	231
Issue Number	1-2
e-ISSN	16156102
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-07-03
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cell Biology Plant Sciences Zoology
Content Type	Text
Resource Type	Article
Subject	Cell Biology Plant Science Medicine

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