Inhibitory Effect of Aromatic Compounds on Acetotrophic Methanogenesis.

Methanogenesis on Rice Roots Phosphate Inhibits Acetotrophic

Phosphate inhibits acetotrophic methanogenesis on rice roots.

The contribution of acetate- and H(2)/CO(2)-dependent methanogenesis to total CH(4) production was determined in excised washed rice roots by radiolabeling, methyl fluoride inhibition, and stable carbon isotope fractionation. Addition of > or = 20 mM phosphate inhibited methanogenesis, which then was exclusively from H(2)/CO(2). Otherwise, acetate contributed about 50 to 60% of the total methan...

effect of oral presentation on development of l2 learners grammar

this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...

Microwave Field Effect on Polyphenolic Compounds from Aromatic Plants

Nowadays, the use of mobile telephony and wire-less devices has become more demanding, generating electromagnetic radiations. Microwave radiation can affect the growth rate of plants. For this study, the aromatic plants i.e. parsley, celery, dill, basil, were chosen as irradiated plants. This study aims to investigate the effects of irradiation with microwave field on polyphenolic compounds fro...

the effect of explicit teaching of metacognitive vocabulary learning strategies on recall and retention of idioms

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