Alga Merah (Gracilaria coronopifolia) sebagai Sumber Fitohormon Sitokinin yang Potensial
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Ultraviolet (UV)-absorbing mycosporine-like amino acids (MAAs) were separated from a marine red alga Gracilaria cornea using HPLC. The isolated MAAs were identified as porphyra-334 and/or shinorine by comparing them with various standards. No in vivo induction of MAAs was detected in G. cornea even when the organism was grown for 4–5 days either in the presence of UV-A and UV-B only or in combi...
متن کاملChlorinated C12 fatty acid metabolites from the red alga Gracilaria verrucosa.
Three compounds containing moieties rarely encountered in nature, viz., 3-nonyloxirane-2 carboxylic acid methyl ester (1), 2-chlorododec-2-en-1-ol (2), and 2-chlorododec-2,11-dien-1-ol (3), were isolated from the red alga Gracilaria verrucosa, and their structures were determined by spectroscopic methods.
متن کاملLight-Harvesting System of the Red Alga Gracilaria tikvahiae: II. Phycobilisome Characteristics of Pigment Mutants.
Phycobilisomes were isolated from wild type Gracilaria tikvahiae and a number of its genetically characterized Mendelian and non-Mendelian pigment mutants in which the principal lesions result in an increase or decrease in the accumulation of phycoerythrin. Both the size and phycoerythrin content of the phycobilisomes are proportional to the phycoerythrin content of the crude algal extracts. In...
متن کاملLight-Harvesting System of the Red Alga Gracilaria tikvahiae: I. Biochemical Analyses of Pigment Mutations.
Wild type Gracilaria tikvahiae, a macrophytic red alga, and fourteen genetically characterized pigment mutants were analyzed for their biliprotein and chlorophyll contents. The same three biliproteins, phycoerythrin, phycocyanin, and allophycocyanin, which are found in the wild type are found in all the Mendelian and non-Mendelian mutants examined. Some mutants overproduce R-phycoerythrin while...
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ژورنال
عنوان ژورنال: Chimica et Natura Acta
سال: 2017
ISSN: 2541-2574,2355-0864
DOI: 10.24198/cna.v5.n3.16060