Role of Root Exudates in Adaptative Reactions of Buckwheat Plants in Aluminium-acid Stress
Journal Title: Журнал ÑтреÑÑ-физиологии и биохимии - Year 2014, Vol 10, Issue 1
Abstract
Aliminium toxicity is major limiting factor of crop production in acidic soils. It is known that mechanisms of toxic effects of aluminium are differing in biochemical characters, research of aluminium toxicity complicated by variety of its chemical forms and migration in soil and water ability. The root exudates qualitative composition of common buckwheat was evaluated. Organic complexing agents – oxalic acid and phenolic compounds were revealed. The role of these complexing agents in the buckwheat aluminium resistance under acidic stress, participation in processes of external and internal detoxification was shown. Spectrophometric assay revealed an increase in root secretion of oxalic acid by 2.5 times and decrease in content of phenolic compounds in root exudates solution by 3 times upon aluminium (50 µM) treatment. In the meanwhile the same concentration of the metal had induced phenylalanine ammonia-lyase activity by 2 times.
Authors and Affiliations
A. Smirnov, O. Kosyk, N. Taran
Keywords
Related Articles
- EP ID EP126174
- DOI -
- Views 138
- Downloads 0
Assessment of Actinobacteria Role in Activity of Deep-water Endemic Amphipod Species Belonging to the Genus Ommatogammarus
The aim of present study was to reveal the associations between the actinobacteria strains and Lake Baikal deep-water endemic amphipods. During the study forty-two actinobacteria strains were isolated from the amphipods...
The Main Event in Biology of XX Century
In the article the 60-years history of molecular biology, the central discipline of modern biology: its achievements and problems
Самое главное событие в биологии ХХ века. (К 60-летию молекулярной биологии)
В статье рассматривается 60-летняя история развития молекулярной биологии, центральной дисциплины современной биологии: её достижения и проблемы
Mitochondria as a Possible Place for Initial Stages of Steroid Biosynthesis in Plants[sub][/sub]
With the aim of thorough comparison of steroidogenic systems of plants and animals, transgenic plants of Solanaceae family expressing [i]CYP11A1 [/i]cDNA encoding cytochrome P450SCC of mammalian mitochondria were f...
The Influence of Trematode Invasion on the Thermoresistance of Lymnaea stagnalis (Gastropoda, Pulmonata) Population from the Floodplain Reservoir of Angara River
The average terms (AT) of survival at 35°C in matured [i]Lymnaea stagnalis[/i] with different levels of trematode invasion have been determined. There were noninvaded individuals from a natural population of [i]L. stagna...