Work

Development of the alt Mutant of Pisum sativum L.

Year: 1987

Type: article

Abstract: The alt (albina-terminalis) mutant of Pisum sativum L. germinates normally, produces several nodes, and then above a sharp transition produces 2 to 3 bleached nodes, ceases growth, and eventually dies. Green nodes have normal chlorophyll content, absorption spectra, photosynthetic rates, and ultrastructure. In bleaching tissues, the chloroplasts degenerate rapidly, followed by extensive disruption and loss of the remaining cytoplasm and organelles. Application of tissue extracts of normal genotypes of pea, corn, and bean stimulates apical development of alt. The resulting tissues have essentially normal structure and function. Application of thiamine, thiamine monophosphate, and thiamine pyrophosphate also stimulate normal apical development at concentrations of 1 micromolar and above. Partial characterization of the stimulus from pea seed extracts is consistent with thiamine as the active factor.

Source: PLANT PHYSIOLOGY

DOI: 10.1104/pp.85.4.1089

Authors: Wei Wen Guo, William M. Proebsting, Sandra W. Potter, Larry S. Daley, John R. Potter

Institutions: Oregon State University, Agricultural Research Service, National Clonal Germplasm Repository, Horticultural Crops Research Laboratory

Language: English

Topic: Plant Genetic and Mutation Studies

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: bronze

Funders: U.S. Department of Agriculture, Oregon State University