khalaf.ali

Khalaf Ali Fayez Abuamra

استاذ - أستاذ متفرغ

كلية العلوم

العنوان: قسم النبات والميكروبيولوجى -كلية العلوم -جامعة سوهاج

2

إعجاب

المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: Pigments


2018-11-19 20:25:58 الكلمات المفتاحية antioxidant enzymes, C. vulgaris, Diuron, Growth, Nitrate reductase, Pigments,
Alteration in growth and physiological activities in Chlorella vulgaris under the effect of photosynthetic inhibitor diuron
In this study, we describe the effect of diuron, a photosynthesis-inhibiting herbicide, on growth, photosynthetic pigment contents, carbohydrate, protein, amino acids, proline, nitrate reductase and some antioxidant enzymes in cell suspensions of Chlorella vulgaris for seven days. The growth (cell number & dry weight) was seriously affected even with lowest diuron dose (0.1 µM). Photosynthetic pigment contents (chl-a, chl-b & ... إقراء المزيد

2018-10-26 07:07:08 الكلمات المفتاحية Pigments, Nitrate reductase, Diuron; Growth, C. vulgaris, antioxidant enzymes,
Alteration in growth and physiological activities in Chlorella vulgaris under the effect of photosynthetic inhibitor diuron
In this study, we describe the effect of diuron, a photosynthesis-inhibiting herbicide, on growth, photosynthetic pigment contents, carbohydrate, protein, amino acids, proline, nitrate reductase and some antioxidant enzymes in cell suspensions of Chlorella vulgaris for seven days. The growth (cell number & dry weight) was seriously affected even with lowest diuron dose (0.1 µM). Photosynthetic pigment contents (chl-a, chl-b & ... إقراء المزيد

2018-10-18 20:06:56 الكلمات المفتاحية Ficus carica, Fig leaf mottle-associated vir, Pigments, ultrastructure, Antioxidant compounds,
Detection and partial characterization of a putative closterovirus affecting Ficus carica: molecular, ultrastructural and physiological aspects of infected leaves
_Fig mosaic disease_ (FMD) was systemically transmitted to susceptible fig plants by grafting and led to development of symptoms including a wide array of discoloration, green blisters, mottling, crinkling and deformation of leaves and fruits. A sensitive assay for the detection of FMV using specific enzyme-linked immune sorbent assay and reverse transcription-polymerase chain reaction was developed. A double-stranded RNA ca. ... إقراء المزيد

Salicylic acid alleviates growth inhibition and oxidative stress caused by zucchini yellow mosaic virus infection in Cucurbita pepo leaves
The effects of zucchini yellow mosaic virus (ZYMV) infection and pretreatments with salicylic acid (SA) on biomass accumulation of pumpkin (_Cucurbita pepo_ cv. Eskandarani) were investigated. The response of photosynthesis, transpiration and the activities of antioxidant enzymes in leaves was also considered. Significant reductions in growth parameters (i.e. leaf area, biomass and shoot height), photosynthesis and chlorophyll _a_ and _b_ ... إقراء المزيد

2018-10-14 23:09:35 الكلمات المفتاحية Radionuclides, Tree leaves, Eucalyptus, Biomonitors, Urban air, Pigments, ANTIOXIDANT,
BIO-MONITORING OF RADIONUCLIDES AIR POLLUTION USING PHYSIOLOGICAL RESPONSES OF URBAN TREES
Contamination of environment by radionuclides in territories under urboecosystem conditions is an actual problem. The search for new express methods for radioactivity determination of environment is an important task of research. The present work evaluated the ability to use _Eucalyptus globulus_ leaves to act as bio-monitor for environmental radionuclides air pollution. The accumulation features of radionuclides (226Ra, 232Th, 40K) in ... إقراء المزيد