Format

Send to

Choose Destination
See comment in PubMed Commons below
Plant Sci. 2000 Jul 28;156(2):213-219.

Polysomaty analysis in diploid and tetraploid Portulaca grandiflora.

Author information

1
Plant Cell Technology Laboratory, Faculty of Horticulture, Chiba University, 648 Matsudo, Matsudo City, 271-8510, Chiba, Japan

Abstract

Polysomaty analysis of the succulent portulaca (Portulaca grandiflora Hook.) plant was carried out using flow cytometry. For both diploid and tetraploid plants, mature leaf tissue was found to have a higher level of polysomaty than young leaf tissue. Mesophyll (MP), bundle sheath (BSP) and water storage protoplasts (WSP) were isolated from leaf tissues of diploid portulaca plants. WSP had a higher degree of endopolyploidization than MP and BSP. The ploidy distribution was also variable in different floral organs. Tetraploid plants artificially induced by colchicine treatment showed a decline in the degree of polysomaty compared to diploid plants. Tetraploid plants had more spherical leaves, a larger number of petals and lower pollen fertility than diploid plants.

PMID:
10936528
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Support Center