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Influence of loosely bound extracellular polymeric substances (EPS) on the flocculation, sedimentation and dewaterability of activated sludge.
TLDR
Although EPS is essential to sludge floc formation, excessive EPS in the form of LB-EPS could weaken cell attachment and the floc structure, resulting in poor bioflocculation, greater cell erosion and retarded sludge-water separation. Expand
Ethylene biosynthesis: Identification of 1-aminocyclopropane-1-carboxylic acid as an intermediate in the conversion of methionine to ethylene.
TLDR
Data indicate the following sequence for the pathway of ethylene biosynthesis in apple tissue: methionine --> S-adenosylmethionine ― ACC ― ethylene --> methylthioadenosine --> ACC --> ethylene. Expand
A simple and sensitive assay for 1-aminocyclopropane-1-carboxylic acid.
TLDR
The method is quite specific and can detect as little as 5 pmol of ACC, the immediate precursor of ethylene in plant tissues, which is normally 80% and can be determined by internal standards. Expand
Auxin-induced Ethylene Production and Its Inhibition by Aminoethyoxyvinylglycine and Cobalt Ion.
TLDR
It is suggested that in the ethylene biosynthetic pathway, IAA stimulates C(2)H(4) production by inducing the synthesis or activation of ACC synthase, which catalyzes the conversion of SAM to ACC, and Co(2+) exerts its effect by inhibiting the Conversion of ACC to ethylene. Expand
Purification and characterization of 1-aminocyclopropane-1-carboxylate oxidase from apple fruit.
TLDR
When preclimacteric apple fruit was treated with ethylene, a parallel increase in in vivo and in vitro ACC oxidase activities was observed, and this increase was accompanied by a concomitant increase in the level of pAE12 transcript, supporting the conclusion that the isolatedACC oxidase protein is encoded by pAE 12. Expand
Formation of cyanide from carbon 1 of 1-aminocyclopropane-1-carboxylic acid during its conversion to ethylene.
TLDR
Data indicate that in the conversion of ACC to ethylene the carboxyl group yields CO(2), and C-1 is released as HCN, and (14)CO(2) was recovered in an amount equivalent to the amount of ethylene produced. Expand
Methionine metabolism in apple tissue: implication of s-adenosylmethionine as an intermediate in the conversion of methionine to ethylene.
TLDR
Observations suggest that the conversion of methionine into MTA and MTR is closely related to ethylene biosynthesis and provide indirect evidence that SAM may be an intermediate in the Conversion of Methionine to Ethylene. Expand
Differential accumulation of transcripts for four tomato 1-aminocyclopropane-1-carboxylate synthase homologs under various conditions.
TLDR
The view that ACC synthase is encoded by a multigene family and that the members are differentially expressed in response to developmental, environmental, and hormonal factors is supported. Expand
Transphosphatidylation by phospholipase D.
TLDR
The transphosphatidylase function of phospholipase D offers a useful route for synthesis of a variety of phosphatidol esters, and implicate formation of a phosphothioester linkage in the phosph atidylenzyme complex. Expand
Signaling events in the hypoxic induction of alcohol dehydrogenase gene in Arabidopsis.
TLDR
It is concluded that ethylene is needed, but not sufficient for, the induction of ADH in Arabidopsis during hypoxia, whereas the addition of exogenous ethylene or an increase in cellular ethylene alone does not induce ADH under normoxic conditions. Expand
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