Meristem maintenance and compound-leaf patterning utilize common genetic mechanisms in tomato

Arnon Brand1, Neti Shirding, Sharona Shleizer

  • 1The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Otto Warburg Minerva Center for Agricultural Biotechnology, The Hebrew University of Jerusalem, Rehovot, Israel.

Planta
|May 24, 2007
PubMed
Summary

Genetic factors control tomato plant growth and leaf complexity. Studying tomato mutants reveals shared mechanisms for shoot apical meristem (SAM) activity and compound leaf development, crucial for plant architecture.

Related Concept Videos

Regulation of Transpiration by Stomata02:04

Regulation of Transpiration by Stomata

During photosynthesis, plants acquire the necessary carbon dioxide and release the produced oxygen back into the atmosphere. Openings in the epidermis of plant leaves is the site of this exchange of gasses. A single opening is called a stoma—derived from the Greek word for “mouth.” Stomata open and close in response to a variety of environmental cues.
C4 Pathway and CAM01:27

C4 Pathway and CAM

Most plants use the C3 pathway for carbon fixation. However, some plants, such as sugar cane, corn, and cacti that grow in hot conditions, use alternative pathways to fix carbon and conserve energy loss due to photorespiration. Photorespiration is the process that occurs when the oxygen concentration is high. Under such conditions, the rubisco enzyme in the Calvin cycle binds O2 instead of CO2, which halts photosynthesis and consumes energy.
C4 Pathway
The C4 pathway is used by plants such as...
Morphogenesis02:19

Morphogenesis

Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.
Monohybrid Crosses01:20

Monohybrid Crosses

Overview
Primary and Secondary Growth in Roots and Shoots03:02

Primary and Secondary Growth in Roots and Shoots

Vascular plants, which account for over 90% of the Earth’s vegetation, all undergo primary growth—which lengthens roots and shoots. Many land plants, notably woody plants, also undergo secondary growth—which thickens roots and shoots.
Dihybrid Crosses01:18

Dihybrid Crosses

Overview