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Circadian Rhythm of Stomatal Movements in Epidermal Strips

Measurements were made of changes in stomatal pore widths in epidermal strips of leaves ofVicia faba and Commelina communis. Strips were incubated in dilute KCI solutions (1 and 10 mol m−3) flowing through a perfusion chamber on the stage of a microscope and kept for 4 d in continuous light. Circadi...

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Published in:	Journal of experimental botany 1993-11, Vol.44 (11), p.1649-1652
Main Authors:	MEIDNER, H., WILLMER, C. M.
Format:	Article
Language:	English
Subjects:	Agronomy. Soil science and plant productions Biological and medical sciences Circadian rhythm Cireadian rhythm Epidermal cells epidermal strips Epidermis Fundamental and applied biological sciences. Psychology Guard cells Leaves Mesophyll Perfusion Plant physiology and development Potassium Stomata Stomatal movement Water and solutes. Absorption, translocation and permeability
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container_issue	11
container_start_page	1649
container_title	Journal of experimental botany
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creator	MEIDNER, H. WILLMER, C. M.
description	Measurements were made of changes in stomatal pore widths in epidermal strips of leaves ofVicia faba and Commelina communis. Strips were incubated in dilute KCI solutions (1 and 10 mol m−3) flowing through a perfusion chamber on the stage of a microscope and kept for 4 d in continuous light. Circadian rhythms of stomatal apertures were detected in both species. Although the amplitude was small it was statistically significant. It is concluded that at least partof the mechanism for the stomatal rhythm resides in the epidermis, probably in the guard cells.
doi_str_mv	10.1093/jxb/44.11.1649
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Soil science and plant productions</subject><subject>Biological and medical sciences</subject><subject>Circadian rhythm</subject><subject>Cireadian rhythm</subject><subject>Epidermal cells</subject><subject>epidermal strips</subject><subject>Epidermis</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Guard cells</subject><subject>Leaves</subject><subject>Mesophyll</subject><subject>Perfusion</subject><subject>Plant physiology and development</subject><subject>Potassium</subject><subject>Stomata</subject><subject>Stomatal movement</subject><subject>Water and solutes. 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Psychology</topic><topic>Guard cells</topic><topic>Leaves</topic><topic>Mesophyll</topic><topic>Perfusion</topic><topic>Plant physiology and development</topic><topic>Potassium</topic><topic>Stomata</topic><topic>Stomatal movement</topic><topic>Water and solutes. Absorption, translocation and permeability</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>MEIDNER, H.</creatorcontrib><creatorcontrib>WILLMER, C. M.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Journal of experimental botany</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>MEIDNER, H.</au><au>WILLMER, C. 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source	Oxford University Press Archive; JSTOR
subjects	Agronomy. Soil science and plant productions Biological and medical sciences Circadian rhythm Cireadian rhythm Epidermal cells epidermal strips Epidermis Fundamental and applied biological sciences. Psychology Guard cells Leaves Mesophyll Perfusion Plant physiology and development Potassium Stomata Stomatal movement Water and solutes. Absorption, translocation and permeability
title	Circadian Rhythm of Stomatal Movements in Epidermal Strips
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