Plant stomata: a checkpoint of host immunity and pathogen virulence.

Journal Article (Review;Journal Article)

Stomata are microscopic pores formed by pairs of guard cells in the epidermis of terrestrial plants; they are essential for gas exchange with the environment and controlling water loss. Accordingly, plants regulate stomatal aperture in response to environmental conditions, such as relative humidity, CO(2) concentration, and light intensity. Stomatal openings are also a major route of pathogen entry into the plant and plants have evolved mechanisms to regulate stomatal aperture as an immune response against bacterial invasion. In this review, we highlight studies that begin to elucidate signaling events involved in bacterium-triggered stomatal closure and discuss how pathogens may have exploited environmental conditions or, in some cases, have evolved virulence factors to actively counter stomatal closure to facilitate invasion.

Full Text

Duke Authors

Cited Authors

  • Zeng, W; Melotto, M; He, SY

Published Date

  • October 2010

Published In

Volume / Issue

  • 21 / 5

Start / End Page

  • 599 - 603

PubMed ID

  • 20573499

Pubmed Central ID

  • PMC2946497

Electronic International Standard Serial Number (EISSN)

  • 1879-0429

International Standard Serial Number (ISSN)

  • 0958-1669

Digital Object Identifier (DOI)

  • 10.1016/j.copbio.2010.05.006

Language

  • eng