Stomatal structures in Zea mays (monocots)

Photo credit: Google

20150428-baby-corn-shutterstock-5.jpg

Stomatal structures in corn leaves.

by Srivastava L. M. , Singh A. P. (1973)

Department of Biological Sciences, Simon Fraser University, Burnaby 2, B. C. Canada

in Journ.Ultrastruct.Res., 1972, 39: 345-363. – DOI: 10.1016/S0022-5320(72)90028-7 –

http://www.sciencedirect.com/science/article/pii/S0022532072900287

Abstract

The development and final structure of the guard and subsidiary cells in corn leaves is described.

The anticlinal walls of the guard cells abutting the subsidiary cells thicken in a characteristic manner. The common wall between the guard cells has pores near its distal/proximal end which enable the pair to behave as a single osmotic unit.

Additionally, the guard cells have a highly dissected vacuole which shows an acidic pH.

The subsidiary cells have large central vacuoles with an alkaline pH and numerous electron lucent spherical inclusions.

These and other cytological features are discussed in relation to the mechanism of stomatal opening and closing.

Advertisements

Published by

Willem Van Cotthem

Honorary Professor of Botany, University of Ghent (Belgium). Scientific Consultant for Desertification and Sustainable Development.

Leave a Reply

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s