Related Experiment Video
Updated: Aug 8, 2026

An Induction System for Clustered Stomata by Sugar Solution Immersion Treatment in Arabidopsis thaliana Seedlings
Published on: February 15, 2019
Regulation of sugar uptake in hypocotyls of cotton
S E Hampson1, R S Loomis, D W Rains
1Department of Agronomy and Range Science, University of California, Davis, California 95616.
Abstract:
Uptake of sucrose and hexoses by hypocotyl segments of cotton (Gossypium hirsutum L.) was shown to be dependent upon sugar level in the tissue. The effect was not related to total sugar level inasmuch as a portion of previously accumulated sugar was without influence on uptake. That portion was presumed to be compartmentalized, most likely in vacuoles. Growth regulators modified the uptake pattern apparently through alterations in secondary metabolism. Uptake and incorporation were inhibited by rotenone and stimulated by light. The light effect was blocked by 3-(3,4-dichlorophenyl)-1,1-dimethylurea. A general model was presented for assimilate flux within sink tissues with free space as the conduit from phloem to carrier site.
Related Concept Videos
Regulation of Transpiration by Stomata
Phloem and Sugar Transport
C4 Pathway and CAM
C4 Pathway
The C4 pathway is used by plants such as...
Responses to Salt Stress
Key Elements for Plant Nutrition
Glucose Absorption Into the Small Intestine
