A Review of Recent Work on the Nitrogen Metabolism of Plants, Part Ii

McKee, H. S.

doi:10.1111/j.1469-8137.1937.tb06914.x

Cited by 10 publications

(4 citation statements)

References 66 publications

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“…When ethanol is administered, the rate of ethanol elimination from the blood increases significantly after the intravenous administration of amino acids (Lisander et al, 2006). This complies with the observation of elevated plasma concentration of lactate in sheep fed ensiled TMR with high ethanol consumption because the generation of lactate from pyruvate utilizes NADH formed by ethanol oxidation as well (McKee & McKee, 2009).…”

Section: Discussionsupporting

confidence: 87%

Effect of ensiled total mixed rations containing sake lees on digestion, nitrogen use, and plasma metabolite concentrations in sheep

Ding

Nishioka

Obitsu

et al. 2022

Animal Science Journal

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Sake lees are a byproduct of Japanese rice wine and used as ruminant feed with high protein and ethanol contents. This study aimed to explore the effects of ensiled total mixed ration (TMR) containing sake lees on rumen fermentation, digestion, nitrogen (N) use, and plasma metabolites in sheep. Four mature wethers were assigned to a 4 Â 4 Latin square design with a factorial arrangement of ensiling treatment (non-ensiled or ensiled TMR) and types of sake lees (traditional or liquefied).Although dietary ethanol consumption was higher in sheep fed ensiled TMR, ruminal and plasma concentrations of methanol and ethanol increased after feeding in all dietary treatments, which was accompanied by the increased plasma concentrations of formate. The intake and digestion of dry matter and N were lower in sheep fed ensiled TMR than in those fed non-ensiled TMR. The plasma concentrations of most amino acids decreased in sheep fed ensiled TMR. Although plasma methionine, serine, and glycine concentrations were not altered by diet, homocysteine concentration was the highest in sheep fed ensiled TMR containing traditional sake lees. The negative impacts of ensiling treatment on N digestion and amino acid utilization should be considered for formulating ensiled TMR containing sake lees.

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Section: Discussionsupporting

confidence: 87%

Effect of ensiled total mixed rations containing sake lees on digestion, nitrogen use, and plasma metabolite concentrations in sheep

Ding

Nishioka

Obitsu

et al. 2022

Animal Science Journal

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“…The bulk of the recent work has dealt with the effect of changing environmental and nitrogen nutritional conditions on the composition of the plant (30,31,32,33,34,35). In view of the many excellent reviews on the subject (5,17,20,27,28) no attempt will be made to review the literature here. Methods …”

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confidence: 99%

Concentration and Translocation of Nitrogen Compounds in the Corn Plant (Zea Mays) During Grain Development

1953

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The purpose of this investigation is twofold: 1. to determine whether the nitrogen in the vegetative parts of the corn plant at pollination is adequate to supply the maturing grain, if not, the contribution of soil nitrogen to the overall nitrogen supply after pollination; 2. to determine to what extent certain nitrogen compounds in the stalks and leaves at pollination contribute to the nitrogen of the maturing grain. The plan was to study corn grown under field conditions on a naturally fertile soil in which there was no deficiency in the nutrient-supplying capacity for the crop. It was also hoped this investigation would disclose new facts about the nitrogen metabolism of the corn plant which might have a bearing on practical aspects of corn protein problems.There have been many investigations concerned with various phases of nitrogen metabolism of plants. The bulk of the recent work has dealt with the effect of changing environmental and nitrogen nutritional conditions on the composition of the plant (30,31,32,33,34,35). In view of the many excellent reviews on the subject (5, 17, 20, 27, 28) no attempt will be made to review the literature here. Methods PLANTING AND SAMPLINGTo accomplish the aims set forth in the introduction, two corn hybrids, U.S. 13 and Funk's G-80, were planted in a rich dark-colored soil classified as Drummer clay loam. No commercial fertilizer was applied for this crop, although a good crop of second-year mammoth clover was plowed under.The hybrids were planted June 1, 1945, and grown at the rate of three plants per hill. To provide for the sampling technique, each hybrid plot was divided into 10 blocks. Only the even-numbered hills were used for samples. At sampling, one from each block was chosen at random. The plants were examined and those showing too much deviation from the average stage of development were discarded. The remaining plants were used as a composite sample, which consisted of the above-ground parts of 14 to 26 plants.

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“…The relations between asparagine, aspartate, and oxalacetate and between glutamine, glutamate, and a-ketoglutarate show the close connection of the cycle with some of the most important compounds in the intermediate nitrogenous metabolism of plants. The consequent interrelations are discussed elsewhere in some detail (McKee 1937(McKee , 1949, and have also been considered recently by Yemm (1949).…”

Section: (A) Carbon Dioxide Outputmentioning

confidence: 85%

Studies on the Nitrogen Metabolism of the Barley Plant (Hordeum Sativum)

Hs¹

1950

Aust. Jnl. Of Bio. Sci.

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In detached harley leaves held at constant temperature in the dark, thereis an increase in "soluble" and a corresponding decrease in "solid" nitrogen. Inmature leaves, glutamine accumulates in the early stages of starvation and laterdecreases concurrently with an increase in asparagine. In detached seedlingleaves, the glutamine content remains low throughout, the sequence of eventsotherwise resembling that found with mature leaves. Changes in the nitrogenousfractions during autolysis, in sterile conditions, of barley leaf tissuediffer greatly from those found with intact detached leaves. "Soluble" nitrogenincreases, but neither amide nor ammonia accumulates.

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A Review of Recent Work on the Nitrogen Metabolism of Plants, Part Ii

Cited by 10 publications

References 66 publications

Effect of ensiled total mixed rations containing sake lees on digestion, nitrogen use, and plasma metabolite concentrations in sheep

Effect of ensiled total mixed rations containing sake lees on digestion, nitrogen use, and plasma metabolite concentrations in sheep

Concentration and Translocation of Nitrogen Compounds in the Corn Plant (Zea Mays) During Grain Development

Studies on the Nitrogen Metabolism of the Barley Plant (Hordeum Sativum)

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