Ultrastructural changes in Spirodela intermedia in response to osmotically-induced water shortage

Klich, M. G; Didoné, N. G; Fernández, O. A; Mújica, M. B

Klich, M. G; Didoné, N. G; Fernández, O. A; Mújica, M. B.

Klich, M. G; Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida. AR
Didoné, N. G; Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida. AR
Fernández, O. A; Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida. AR
Mújica, M. B; Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida. AR

Biocell ; 24(2): 85-88, Aug. 2000.

Article in English | LILACS | ID: lil-335909

RESUMO

RESUMO

The ultrastructural changes produced in the upper mesophyl cells of Spirodela intermedia W. Koch, by the inclusion of polyethylene glycol (PEG) in the nutrient solution, are related to the degree of the osmotically-induced water shortage. The ultrastructural characteristics of the -0.08 MPa treated fronds differed from the untreated ones in the form of the chloroplasts. PEG up to -0.20 MPa induced considerable cell structural disorganization as the swelling, breaking and disappearance of the outer membrane of the chloroplasts and the breakdown of the tonoplast into small vesicles.

Subject(s)

Plant Leaves; Water Deprivation/physiology; Water-Electrolyte Balance; Body Water; Organelles; Plant Leaves; Polyethylene Glycols/pharmacology; Water-Electrolyte Balance

Search on Google

XML

Index: LILACS (Americas) Main subject: Water Deprivation / Water-Electrolyte Balance / Plant Leaves Language: English Journal: Biocell Journal subject: Clulas Year: 2000 Type: Article Affiliation country: Argentina Institution/Affiliation country: Universidad Nacional del Sur/AR

Similar

MEDLINE

LILACS

LIS

Search on Google

XML