APPLICATION OF TRICHODERMA HARZIANUM T22 AS A BIOFERTILIZER POTENTIAL IN MAIZE GROWTH     

Samia Ageeb Akladious  Salwa Mohamed Abbas 《Journal of plant nutrition》2014,37(1):30-49

This study was conducted to investigate the effect of Trichoderma harzianum (T22) on the growth and development of maize (Zea mays) plants. T. harzianum was applied to the grains in two different treatments, either by inoculating the soil with air-dried mycelia of T. harzianum or by treating the seeds with different concentrations of the metabolic solution (as the culture supernatant of T. harzianum) before sowing. Comparisons were made between the two treatments to determine if any beneficial effects for improving the growth of maize plants occurred. Results revealed that application of the highest concentration of air-dried mycelia and all concentrations of the metabolic solution of T. harzianum caused increases in all measured parameters which include growth parameters, chlorophyll content, starch content, nucleic acids content, total protein content and phytohormone content of maize plants but the magnitude of these increases was much more pronounced in case of treating the seeds with the metabolic solution of T. harzianum.  相似文献   

The rise of the rhizosolenid diatoms     

Damsté JS  Muyzer G  Abbas B  Rampen SW  Massé G  Allard WG  Belt ST  Robert JM  Rowland SJ  Moldowan JM  Barbanti SM  Fago FJ  Denisevich P  Dahl J  Trindade LA  Schouten S 《Science (New York, N.Y.)》2004,304(5670):584-587

The 18S ribosomal DNA molecular phylogeny and lipid composition of over 120 marine diatoms showed that the capability to biosynthesize highly branched isoprenoid (HBI) alkenes is restricted to two specific phylogenetic clusters, which independently evolved in centric and pennate diatoms. The molecular record of C25 HBI chemical fossils in a large suite of well-dated marine sediments and petroleum revealed that the older cluster, composed of rhizosolenid diatoms, evolved 91.5 +/- 1.5 million years ago (Upper Turonian), enabling an accurate dating of the pace of diatom evolution that is unprecedented. The rapid rise of the rhizosolenid diatoms probably resulted from a major reorganization of the nutrient budget in the mid-Cretaceous oceans, triggered by plate tectonics.  相似文献   

Contribution of nitric oxide synthase (NOS) activity in blood-brain barrier disruption and edema after acute ischemia/reperfusion in aortic coarctation-induced hypertensive rats     

Mohammadi MT  Shid Moosavi SM  Dehghani GA 《Iranian Biomedical Journal》2011,15(1-2):22-30

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Quantitative Assessment of Proliferative Effects of Oral Vanadium on Pancreatic Islet Volumes and Beta?Cell Numbers of Diabetic Rats     

Leila Pirmoradi  Ali Noorafshan  Akbar Safaee  Gholam Abbas Dehghani 《Iranian Biomedical Journal》2016,20(1):18-25

Background:

Oral vanadyl sulfate (vanadium) induces normoglycemia, proliferates beta cells and prevents pancreatic islet atrophy in streptozotocin-induced diabetic rats. Soteriological method is used to quantitate the proliferative effects of vanadium on beta-cell numbers and islet volumes of normal and diabetic rats.

Methods:

Adult male Sprague-Dawley rats were made diabetic with intravenous streptozotocin injection (40 mg/kg). Normal and diabetic rats were divided into four groups. While control normal and diabetic (CD) groups used water, vanadium-treated normal (VTN) and diabetic (VTD) groups used solutions containing vanadyl sulfate (0.5-1 mg/mL, VOSO₄+5H₂O). Tail blood samples were used to measure blood glucose (BG) and plasma insulin. Two months after treatment, rats were sacrificed, pancreata prepared, and stereology method was used to quantitatively evaluate total beta cell numbers (TBCN) and total islet volumes (TISVOL).

Results:

Normoglycemia persisted in VTN with significantly decreased plasma insulin (0.190.08 vs. 0.970.27 ng/dL, P<0.002). The respective high BG (53249 vs. 14446 mg/dL, P<0.0001) and reduced plasma insulin (0.260.15 vs. 0.540.19 ng/dL, P<0.002) seen in CD were reversed in VTD during vanadium treatment or withdrawal. While the induction of diabetes, compared to their control, significantly decreased TISVOL (1.90.2 vs. 3.030.6 mm³, P<0.003) and TBCN (0.990.1 vs. 3.20.2 x 10⁶, P<0.003), vanadium treatment significantly increased TISVOL (2.90.8 and 4.071.0 mm³, P<0.003) and TBCN (1.50.3 and 3.80.6 x 10⁶, P<0.03).

Conclusion:

Two-month oral vanadium therapy in STZ-diabetic rats ameliorated hyperglycemia by partially restoring plasma insulin. This action was through proliferative actions of vanadium in preventing islet atrophy by increasing beta-cell numbers.Key Words: Vanadium, Pancreas, Islet volumes, Rats  相似文献   

Effect of processing on the in vitro digestibility of proteins and carbohydrates in some Indian legumes     

Hamid Abbas El Faki  Dr. L. V. Venkatarama  H. S. R. Desikachar 《Plant foods for human nutrition (Dordrecht, Netherlands)》1984,34(2):127-133

The effect of different types of processing such as boiling, pressure cooking, puffing, frying, germination, and germination followed by cooking on the protein and carbohydrate digestibility of chickpea, horsegram and cowpea were studied in in vitro systems. In the case of chickpea, the protein digestibility was not significantly improved by any of the treatments. However, for horsegram and cowpea, improvement in protein digestibility was observed after some of the different processing treatments. Frying decreased the protein digestibility in all of the pulses. All of the treatments, except germination, caused a marked increase in in vitro carbohydrate digestibility.  相似文献   

A study of the oxidation-induced conformational and functional changes in neuroserpin     

Mohsenifar A  Lotfi AS  Ranjbar B  Allameh A  Zaker F  Hasani L  Kia BE  Hasannia S 《Iranian Biomedical Journal》2007,11(1):41-46

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