Euhalophyte Eryngium maritimum L.: the Microstructure and Functional Characteristics
Journal Title: Журнал ÑтреÑÑ-физиологии и биохимии - Year 2015, Vol 11, Issue 3
Abstract
The microstructure of the leaf surface, lipids composition, pigments spectrum, biological and photosynthetic activity, and hormones status of euhalophyte [i]Eryngium maritimum[/i] L., one of the most salt-tolerant plants, were studied. It was shown that the existence in saline and dry soils is provided among others adaptive mechanisms by specific microstructure of leaf, adaxial and abaxial surfaces of which have well-developed cuticle and stomata slit placed below the surface of the epidermis. The presence of a large amount of saturated fatty acids provides decrease of membrane permeability and better resistance against soil salinity. The key role in photosynthetic activity is played by chlorophyll a. At the same time a high amount of carotenoids (as compared with amount of chlorophylls) points out that these pigments have a light-collecting function and could transfer an additional energy to chlorophylls. The data from thermoluminescence analyses showed a possible inhibition of recombination reactions in PS II by the assumed saline concentration in plant tissue. Besides, the fluorescence measurements indicate reduced efficiency of photosynthetic reactions. The high level of active ABA is correlated with salt tolerance and ability to survive and grow in stress conditions. The high level of conjugated form of IAA demonstrated that activity of this hormone is limited.
Authors and Affiliations
A. Ivanova, T. Tsonev, V. Peeva, L. Maslenkova, H. Najdenski, I. Tsvetkova, M. Shcherbatiuk, O. Sheiko
Keywords
Related Articles
- EP ID EP143203
- DOI -
- Views 122
- Downloads 0
The salicylic acid effect on the Salvia officianlis L. sugar, protein and proline contents under salinity (NaCl) stress
Plant growth is impressed by biotic and abiotic stress inversely. There are many reports about proteins change level in salinity stress. Leaves fill up more soluble sugar of glucose, fructose and proline with treatment o...
Glycine betaine and salicylic acid induced modification in productivity of two different cultivars of wheat grown under water stress
A pot experiment was conducted to evaluate the beneficial effect of foliar application of glycine betaine (10mM), grain presoaking in salicylic acid (0.05 M) and their interaction on drought tolerance of two wheat ([i]Tr...
Faba Bean Can Adapt to Chocolate Spot Disease by Pretreatment with Shikimic and Salicylic Acids through Osmotic Adjustment, Solutes Allocation and Leaf Turgidity
This study investigated the effect of shikimic and salicylic acids at the concentrations of 0.4 and 0.7 mM, respectively, or their combination as phenolic compounds and Ridomil MZ at the concentration of 250 g/100 L as a...
Comparative Morpho-Biochemical Responses of Wheat Cultivars Sensitive and Tolerant to Water Stress
Water stress is likely the most important factor that adversely affects plant growth and development. In this study two wheat cultivars Gemmieza-7 (sensitive) and Sahel-1 (tolerant) were subjected to water stress and com...
Molecular Mechanisms of Processing Proteome Reorganization of Interphase Chromatin During Stress and Adaptation to Winter in Wheat
Research of fundamental molecular and genetic processes of plant interaction with the environment, is a progressive field of understanding the fundamental problems of stress supramolecular biochemistry of developmental b...