Oxidative dissimilation in Acetobacter suboxydans.
نویسندگان
چکیده
Interest in this laboratory has focused upon the metabolism of the acetic acid bacteria since the superior activity of bound forms of pantothenic acid (PAC) ((1, 2); coenzyme A (3, 4)) over the free vitamin was discovered. The disclosure that pantetheine (Lactobadus bulgaricus factor) is a mercaptan capable of coexisting with an oxidized disulfide form (5) has led to speculation as to whether coenzyme A and other bound forms of pantothenic acid might contribute to oxidative metabolism in Acetobacter suboxyduns. However, even though this organism has been extensively used in industrial fermentations (cf. (6-8)), knowledge is generally lacking concerning the mechanisms of its oxidative patterns. The present study has therefore been designed to obtain initial pertinent information.
منابع مشابه
Oxidations in Acetobacter suboxydans.
It has been shown that glycerol can be oxidized beyond the dihydroxyacetone (DHA) stage by resting Acetobacter suboxydans cells (1). Through washing and centrifuging of the cells at room temperature, most of the oxidative activity was destroyed, which, however, could be restored by the addition of inorganic phosphate and diphosphopyridine nucleotide (DPN). 2,4-Dinitrophenol (DNP), a phosphate “...
متن کاملPhosphorylative and non-phosphorylative oxidation in Acetobacter suboxydans.
It has been shown that glycerol can be oxidized beyond the dihydroxyacetone (DHA) stage by resting Acetobacter suboxydans cells (1). Through washing and centrifuging of the cells at room temperature, most of the oxidative activity was destroyed, which, however, could be restored by the addition of inorganic phosphate and diphosphopyridine nucleotide (DPN). 2,4-Dinitrophenol (DNP), a phosphate “...
متن کاملGlucose and gluconate dissimilation in Acetobacter suboxydans.
Investigations into the nature of the metabolism of glucose in Acetobacter suboxydans have revealed that both the pentose cycle (1) and a direct nonphosphorylative oxidation (2) contribute to the consumption of this substrate. Fructose, in like manner, dissimilates by way of the pentose pathway (3) as does glycerol, after its conversion to fructose-l ,6-diphosphate via triose phosphate (1,4). S...
متن کاملOxidation of dihydroxyacetone via the pentose cycle in Acetobacter sub-oxydans.
Acetobacter suboxydans has for many years been regarded as an organism possessing broad but limited ability to attack sugars and other polyhydroxy compounds (1). More recently, it has become apparent that the organism possesses a number of enzymes for more extensive dissimilation of substrates such as glucose, glycerol, and sorbitol (2). On the other hand, diand tricarboxylic acid cycle activit...
متن کاملTricarboxylic acid cycle activity in Acetobacter pasteurianum.
Previous papers from this laboratory (King and Cheldelin, 1952, 1952a, 1954; Hauge et al., 1955, 1955a) have reported on the oxidation of carbohydrates in Acetobacter suboxydans. Neither resting nor disintegrated cells can oxidize acetate or other intermediates of the tricarboxylic acid cycle. These findings have recently been confirmed in another laboratory (Rao and Gunsalus, 1955). From the c...
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ورودعنوان ژورنال:
- The Journal of biological chemistry
دوره 198 1 شماره
صفحات -
تاریخ انتشار 1952