Untersuchungen zur Synchronisierbarkeit einzelner Pigmentmangel-Mutanten von Chlorella

A pot experiment was conducted to examine the effects of arbuscular mycorrhizal fungi on growth, nutrition and some physiological aspects of cowpea (Vigna unguiculata L.) plants grown at different salinity concentrations (0, 10, 15, 20, 25 and 30 mM NaCl). Under saline condition, arbuscular mycorrhizal fungal (AMF) inoculation significantly increased growth responses, photosynthetic pigments, nutrient contents, proline and total soluble protein of cowpea plants compared to non-AM ones. Those stimulations were related to the levels of mycorrhizal colonization in the associated plants. Interestingly, high proline, chlorophyll content and antioxidant enzymes in AM plants could be important for salt alleviation in plants growing in saline soils.

show abstract

“…Chlorophyll a,b, carotenoids and total pigments in leaves were measured according to Metzner et al (1965).…”

Section: Estimation Of Photosynthetic Pigmentsmentioning

confidence: 99%

The Impact of the Arbuscular Mycorrhizal Fungi on Growth and Physiological Parameters of Cowpea Plants Grown under Salt Stress Conditions

Abdel-Fattah

Rabie

Lamis

et al. 2016

Int J Appl Sci Biotechnol

View full text Add to dashboard Cite

show abstract

“…The data were then expressed as A 280 (10 cm 3 )/g fresh matter after 24 h leakage in distilled water. The contents of chlorophylls a, b and carotenoids were determined spectrophotometrically (Metzner et al, 1965).…”

Section: Measurementsmentioning

confidence: 99%

Evaluation of Two Biologically Active Compounds for Control of Wheat Root Rot and its Causal Pathogens

Hashem

Hamada

2002

Mycobiology

View full text Add to dashboard Cite

The main aim of this study is to evaluate the efficiency of two biologically active compounds (Strom and F-760) in control of wheat root rot disease and its causal organisms. Fusarium graminearum, F. oxysporum, F. solani and Bipolaris sorokiniana were used as target organisms. In vitro, the two compounds showed fungicidal effect on all investigated pathogens resulted in suppression of radial growth and mycelial dry weight of them. Under greenhouse conditions, treatment of wheat grains with either Strom or F-760 before cultivation significantly reduced the percent of disease distribution as well as the mean disease rating of plants in both seedling and flowering stages. Fresh and dry weights of plants as well as water maintenance capacity were increased as the result of applying these compounds as seed dressing. Also data showed that the membrane stability of plants was injured as a result of infection with all investigated organisms, while this injury was alleviated when F-760 and Strom were applied. The K + efflux and the leakage of UV-absorbing metabolites was stimulated with fungal infection. However, F-760 and Storm treatment partially retarded the stimulatory effect on leakage of K + and UV-absorbing metabolites of fungal infected plants. On the other side, the fungal infection had inhibitory effects on pigment fractions (chlorophyll a, b, and carotenoids) biosynthesis in wheat leaves. This retarding effect was partially or completely alleviated as the grains were treated with the applied compounds.

show abstract

“…leaf area, plant height, root length, fresh and dry weights of both shoots and roots), photosynthetic pigments, carotenoids, soluble sugars, soluble proteins, total free amino acids, and malondialdehyde (MDA) contents. Chlorophyll a, chlorophyll b and carotenoids were determined using a spectrophotometric method described by Metzner et al [33]. Total free amino acids were determined according to the method of Moore and Stein [36], soluble sugars by anthrone sulphuric acid method which was carried out after Fales [16] and Schlegel [44] and adopted by Badour [4].…”

Section: Methodsmentioning

confidence: 99%

Morphological and physiological changes in esterase and lipid peroxidation of two bean cultivars pre-soaked with potassium nitrate under salt stress

Shaddad

El-Baki

Mostafa

et al. 2015

Acta Biologica Hungarica

View full text Add to dashboard Cite

Two broad bean cultivars (Vicia faba CV Nobaria3 and Vicia faba CV Sakha3) were obtained from Mallwi Agriculture Research Center, El Minia Governorate, Egypt. The seeds were divided into two groups, the first group soaked with distilled water, while the second group were soaked with 3 mM KNO 3 , respectively, for 4 hours. Seeds were sown and left to grow for 3 weeks then treated with different concentrations of NaCl (0.0, 40, 80, 120 and 160 mM) by top irrigation, then they left to grow further for 65 days from sowing. Plant samples were collected for some measurements: leaf area, plant height, root length, fresh and dry weight, photosynthetic pigments, carotenoids, soluble sugars, soluble proteins, total free amino acids, esterase enzyme, as well as MDA (malondialdehyde) content. Salinity reduced both fresh and dry weight in two broad bean cultivars, this reduction were more pronounced in Sakha3 than Nobaria3. Seed pre-soaking with KNO 3 resulted in enhancement of fresh and dry weight production in both cultivars especially at 40 mM NaCl. Photosynthetic pigments were substantially affected by salt treatment while the carotenoids were increased, seed pre-soaking with KNO 3 improved these components. The soluble sugars, amino acids as well as soluble proteins showed various responses with increasing salinity in the cultivars, seed pre-soaking with KNO 3 has improved these parameters to some extent. The shoots of two cultivars exhibited significant accumulation of MDA, compared to roots exposed to the highest salinity levels. Pre-soaking seeds with KNO 3 did not improve MDA in shoots but enhanced it in roots, however, in most cases still lower than the absolute control. The assessment of the esterase isozyme profiles on 7.5% native polyacrylamide gel revealed the presence of 13 isoforms in two faba bean plants in response to KNO 3 pre-soaking and treatments with different concentrations of NaCl.

show abstract

Untersuchungen zur Synchronisierbarkeit einzelner Pigmentmangel-Mutanten von Chlorella

Cited by 584 publications

References 2 publications

The Impact of the Arbuscular Mycorrhizal Fungi on Growth and Physiological Parameters of Cowpea Plants Grown under Salt Stress Conditions

The Impact of the Arbuscular Mycorrhizal Fungi on Growth and Physiological Parameters of Cowpea Plants Grown under Salt Stress Conditions

Evaluation of Two Biologically Active Compounds for Control of Wheat Root Rot and its Causal Pathogens

Morphological and physiological changes in esterase and lipid peroxidation of two bean cultivars pre-soaked with potassium nitrate under salt stress

Contact Info

Product

Resources

About