Metabolic changes associated with akinete germination in the cyanobacterium Anabaena doliolum

Bioenergetics Studies of the Cyanobacterium Anabaena variabilis

A cell-free system exhibiting both photophosphorylation (P /2e = 1) and oxidative phosphoryla­ tion (P/O up to 0 .8 ) is described for the cyanobacterium Anabaena variabilis. NADH and N A D PH were found to be equally effective as electron donors for oxidative phosphorylation. Low concentrations of U H D B T , an inhibitor of the cytochrome blc complex of mitochondria and chloroplasts. were fou...

Identification of an Na(+)-dependent transporter associated with saxitoxin-producing strains of the cyanobacterium Anabaena circinalis.

Blooms of the freshwater cyanobacterium Anabaena circinalis are recognized as an important health risk worldwide due to the production of a range of toxins such as saxitoxin (STX) and its derivatives. In this study we used HIP1 octameric-palindrome repeated-sequence PCR to compare the genomic structure of phylogenetically similar Australian isolates of A. circinalis. STX-producing and nontoxic ...

Metabolic Changes Associated with the Germination of Corn. III. Effects of Gibberellic Acid on Endosperm Metabolism.

Stimulationi of endospermii metal)olism by the additioll of exogenlous -ibberellic acid (GA) has been reported ly many workers. A series of papers by P'aleg (8, 9, 10) have dlescril)ed the dependence of loss of (iry weight, starclh hydrolysis anld protein release in excised barley endospermi on the presence of a(ldled GA. \VNork with many varieties of barley, \wheat and oats has confirmiied tlh...

Metabolic changes associated with the germination of corn. II. Nucleic acid metabolism.

Glyoxylate Induced Changes in the Carbon and Nitrogen Metabolism of the Cyanobacterium Anabaena cylindrica.

Addition of millimolar concentrations of glyoxylate to nitrogen-fixing cultures of Anabaena cylindrica, grown aerobically in the light, caused the following effects: an increase in the number of glycogen granules and in the excretion of carbohydrates; a decreased phycocyanin concentration, but an increase in the chlorophyll a to phycocyanin ratio. Also, an enhancement in the carbon to nitrogen ...