EFFECTS OF THE DWARFING GENE ALLELES ON COLEOPTILE OF BREAD WHEAT LENGTH UNDER OSMOTIC STRESS CONDITIONS
Journal Title: Вісник Одеського національного університету. Біологія - Year 2016, Vol 21, Issue 1
Abstract
One of the critical periods of plant response to drought is the germination stage. Deviations from the optimal conditions of growth in the period of germination negatively affect the development of wheat plants in the following stages of ontogenesis. Сoleoptile length is indirectly involved into the development of drought resistance of bread wheat at the germination stage. The aim of our study was to evaluate the effect of gene alleles Rht8, Rht-B1, Rht-D1 on the coleoptile length of the analogue lines, which differ in Rht alleles, during germination under osmotic stress. Osmotic stress was simulated by using a 15 % PEG-6000 solution. Stressful conditions were applied for 7 days from the germination beginning. Genotypes without Rht genes were characterized by longer coleoptile compared with dwarfing forms on the control and PEG solution. The difference of coleoptile length between the parental tall forms and lines-analogues was lower in the control than in the osmotic stress conditions. It has been found that coleoptile length of analogue lines is shorter in comparison with tall forms under osmotic stress conditions and depends on alleles: Rht8c (25.4 and 26.9 % (on different genetic backgrounds), Rht-B1b (30.3 %), Rht-B1e 31 and 42.1 % (on different genetic backgrounds), Rht8c+Rht-B1e (58 %), Rht8c+Rht-B1b (61.6 %), and Rht8c+Rht-D1b (25.1 %). It was shown that coleoptile length also depends on the genetic background.
Authors and Affiliations
A. I. Honcharova, I. I. Motsnyi, S. V. Chebotar
Keywords
Related Articles
- EP ID EP308664
- DOI -
- Views 84
- Downloads 0
SEASONAL DYNAMICS AND RESOURCES OF FORAGE ZOOBENTHOS OF SIVASH AS A KEY AREA FOR THE WADERS MIGRATING ALONG THE AFRO-EURASIAN FLYWAYS
The paper presents results of nine years of research (1994-2002) dedicated to the role of aquatic invertebrates in wader distribution. The stocks of forage resources and their dynamics are assessed for the first time. Fo...
PHYSIOLOGICAL AND BIOCHEMICAL PARAMETERS OF ORGANS AND TISSUES RATS DIFFERENT MODES OF UHF IRRADIATION
Introduction. A person is not able to physically feel the electromagnetic field that surrounds them but some frequencies can influence health and working ability, and cause changes of the adaptive reserves. Purpose. Th...
COLLECTIONS OF PROMINENT BOTANISTS IN E. E. LINDEMANN’ HERBARIUM COLLECTION (MSUD)
By making inventory of E. E. Lindemann collection there were picked up 10 herbarisators from more than 500, which contribution was more than 100 h.l. It was emphasized the role of the botanists to be connected with Novor...
THE EFFECT OF MICROELEMENTS ON LIPID METABOLISM IN CHLORELLA VULGARIS BEIJER.
The aim of the study was to determine the intensity of lipid biosynthesis in unicellular alga Chlorella vulgaris under the action of zinc and chromium (III) ions in the presence of sodium selenite. The results. The conte...
VERTICAL DISTRIBUTION OF MUSSEL MYTILUS GALLOPROVINCIALIS (LAMARCK, 1819) OF DIFFERENT PHENOTYPIC GROUPS FOULING THE DEPTH OF ODESA COAST
Mussel Mytilus galloprovincialis (Lamarck, 1819) is widespread in the north-western part of the Black Sea, it is the active filter feeders sea water, is an important component of various zoocenoses. Mollusk is the object...