Skip to main content

Main menu

  • Home
  • Content
    • Current Issue
    • Archive
    • Preview Papers
  • About
    • Editorial Board and Staff
    • About the Journal
    • Terms & Privacy
  • More
    • Alerts
    • Contact Us
  • Submit a Manuscript
    • Instructions for Authors
    • Submit a Manuscript
  • Other Publications
    • Plant Physiology
    • The Plant Cell
    • Plant Direct
    • The Arabidopsis Book
    • Teaching Tools in Plant Biology
    • ASPB
    • Plantae

User menu

  • My alerts
  • Log in

Search

  • Advanced search
Plant Cell
  • Other Publications
    • Plant Physiology
    • The Plant Cell
    • Plant Direct
    • The Arabidopsis Book
    • Teaching Tools in Plant Biology
    • ASPB
    • Plantae
  • My alerts
  • Log in
Plant Cell

Advanced Search

  • Home
  • Content
    • Current Issue
    • Archive
    • Preview Papers
  • About
    • Editorial Board and Staff
    • About the Journal
    • Terms & Privacy
  • More
    • Alerts
    • Contact Us
  • Submit a Manuscript
    • Instructions for Authors
    • Submit a Manuscript
  • Follow PlantCell on Twitter
  • Visit PlantCell on Facebook
  • Visit Plantae

Table of Contents

The Plant Cell Online: 24 (11)
Nov 2012

Cover image

Cover image expansion

INP1 CONTROLS FORMATION OF APERTURES IN POLLEN EXINE
The cell walls of pollen grains, or exines, assemble into beautiful and very diverse species-specific patterns. Apertures, areas where exines are not deposited, are very common elements of exine patterning and also differ widely across species in their number, morphology, and positions. The dramatic variations of exines and apertures in nature are illustrated by four yellow pollen grains (clockwise from top left: Salvia patens, Passiflora sp, Salvia leucantha, and Brachypodium distachyon). The presence of apertures suggests the existence of cellular mechanisms that define these areas and prevent exine deposition. Dobritsa and Coerper (pages 4452–4464) describe the function of Arabidopsis thaliana INAPERTURATE POLLEN1 (INP1), which is shown to specifically control aperture formation. INP1 protein marks positions of the future apertures and appears to control aperture length in a dosage-dependent manner. The sweeping line (top right to bottom left) of false-colored Arabidopsis pollen grains in this image illustrates a gradient of aperture lengths observed in mutant lines with different levels of INP1, from the presence of long apertures in wild-type pollen (green) to the complete absence of apertures in the inp1 null mutants (orange). The three pollen grains in between these two extremes come from the inp1 lines containing independent insertions of the INP1 transgene. (Photographs and image design by Anna Dobritsa.)

Back to top
PreviousNext

In this issue

The Plant Cell Online: 24 (11)
The Plant Cell
Vol. 24, Issue 11
Nov 2012
  • Table of Contents
  • Table of Contents (PDF)
  • About the Cover
  • Index by author
  • Advertising (PDF)
  • Front Matter (PDF)
Sign up for alerts

Jump to

  • IN BRIEF
  • COMMENTARY
  • LARGE-SCALE BIOLOGY ARTICLES
  • RESEARCH ARTICLES

Our Content

  • Home
  • Current Issue
  • Plant Cell Preview
  • Archive
  • Teaching Tools in Plant Biology
  • Plant Physiology
  • Plant Direct
  • Plantae
  • ASPB

For Authors

  • Instructions
  • Submit a Manuscript
  • Editorial Board and Staff
  • Policies
  • Recognizing our Authors

For Reviewers

  • Instructions
  • Peer Review Reports
  • Journal Miles
  • Transfer of reviews to Plant Direct
  • Policies

Other Services

  • Permissions
  • Librarian resources
  • Advertise in our journals
  • Alerts
  • RSS Feeds
  • Contact Us

Copyright © 2021 by The American Society of Plant Biologists

Powered by HighWire