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A. A. M. Al-Jibouri K. M. Adham 《The Journal of Horticultural Science and Biotechnology》2013,88(6):725-729
Six male cultivars of Phoenix dactylifera L., Adi, Khukri, Wardi, Ghannami Akhdhar, Ghannami Ahmar and Sumaismi were analysed for esterase (EST), glutamate oxaloace- tate transaminase (GOT), leucine amino-peptidase (LAP), peroxidase (PRX) and acid phosphatase (ACP) isozymes using polyacrylamide gel electrophoresis (PAGE). There were no differences in the isozyme banding pattern between individual plants of the same cultivar. However clear differences were observed between the cultivars tested. Such differences included the number of isozymes, the relative mobility value and the intensity of the bands. The use of isozyme system as a genetic marker for date palm biochemical classification is discussed. 相似文献
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Vitamin C deficiency in the catfish Clarias gariepinus 总被引：3，自引：0，他引：3
Regardless of the absence of spinal deformities, vitamin C deprivation in adult-sized Clarias gariepinus challenged the physical integrity and survival of fish, inducing changes that greatly resembled those of fingerlings of other species. Vitamin C was presumed to be a dietary facilitator, which when deprived in the diet of C. gariepinus , would obstruct intestinal absorption of iron and/or impair its release from the reticulo-endothelial stores. This impaired erythrocyte synthesis led into anaemia (as indicated by lowered levels of red blood cells, haemoglobin and haematocrit). Leukopenia noted in fish on a scorbutic (lacking vitamin C) diet suggested functional depression of phagocytic engulfment with increased susceptibility to the deteriorating action of pathogenic agents. Changes in histology included hypertrophy, oedematous separation and telangiectasia of gill lamellae. Shrunken glomeruli, sloughed Bowman's capsules and tubular dilation and distortion were also shown. Shrunken hepatocytes and the occurrence of yellowish ceroid pigments were the concrete histopathological signs in liver. Vitamin C is thus suggested as a potent antioxidant that offers protection against oxidative damage to various fish tissues. 相似文献
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Rahman Mohammed M. Hasan Shafee Ahmed Md. Razu Adham A. K. M. 《Paddy and Water Environment》2022,20(4):449-466
Paddy and Water Environment - Rice is critical to maintaining nutritional demand and food security of many Asian and African nations. The high water demanding rice is traditionally cultivated with... 相似文献
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Summary In a world lentil collection the distribution of variation amongst accessions from 13 major lentil-producing countries was examined on the basis of nine quantitative morphological characters by discriminant analysis and canonical analysis. Stepwise discriminant analysis revealed major differences between accessions from different countries. Three major regional groups were apparent: 1) a levantine group (Egypt, Jordan, Lebanon and Syria, 2) a more northern group composed of Greece, Iran, Turkey, and USSR, and 3) accessions from India and Ethiopia with strikingly similar quantitative morphological characters. Misclassifications of individuals within groups were frequent. Characters useful in discriminating between accessions from different countries were in descending order of importance: time to maturity, lowest pod height and 100-seed weight. The regional grouping indicates the importance of local adaptation through clusters of associated characters with phenological adaptation to the ecological environment as the major evolutionary force in the species. 相似文献
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