Algae Tolypothrix

The tjipanazoles (18, 19a-d, 20a-b) a group of A-glycosides of indolo-[2,3-a]carbazole, have been isolated from the moderately antifungal extract of the blue-green alga Tolypothrix tjipanasensis. These alkaloids do not exhibit antitumor or protein kinase C (PKC) inhibitory activity, which is in contrast with the... 

In the synthesis of the nonamethoxy-l-pentacosene (622), a naturally ocurring poly-methoxy-l-alkene isolated from the blue-green alga Tolypothrix conglutinata var. chlorata, the backbone is assembled using two aldehydes (620 and 621) (Scheme 91) [146]. 

Fig. 7 Tolyporphins B-F, K found in lipophilic extracts of blue-green alga Tolypothrix nodosa...

Occurrence T. A and several closely related T. were isolated from the Pacific alga Tolypothrix nodosa. T. A is able to break the resistance of cancer cells, directed concomitantly against several anticancer drugs [mul-... 

The only naturally occurring bacteriochlorin that is not involved in photosynthesis is the tolyporphin 131 isolated by Prinsep et from the blue-green alga Tolypothrix nodosa. This compound, which enhances the cytotoxicity of adriamycin or vinblastine in SK-VLB cells at doses as low as 1 pg/ml, is characterized as a multidrug resistance-... 

Prinsep MR, Patterson GML, Larsen LK, Smith CD (1995) Further Tolyporphins from the Blue-Green Alga Tolypothrix nodosa. Tetrahedron 51 10523... 

Minor alkaloid from the blue-green alga Tolypothrix tjipanasensis. 

Minor alkaloid from blue-green alga Tolypothrix tjipanasensis. [a]o +18.1 (c, 1.1 in CHCI3). Opt. rotn. refers to a mixt. with other TJipanazole C components. 

Alkaloid from blue-green alga Tolypothrix tjipanasensis. I - 6 Deoxy-P-D-gulopyranosyl) Tjipanazole Al C24H20CI2N2O4 M 471.338... 

Fig. 4. Partial mass spectra of acetylated glycolipids from a prokaryotic blue-green algae, Tolypothrix (A), a 18 3 plant, Cucurbita (B), and a C 16 3 plant, Anthriscus (C), showing the different diglyceride fragments.

Di-Me ether, 6"" -carbamoyl, 6 -butanoyl, 6 -Ac [105694-29-9] C45H73NO33 1156.059 Isol. from a blue-green alga Tolypothrix byssoidea. 

Fifteen new K-glycosides of indolo [2,3-a]carbazoles (tjipanazoles) have been obtained from the blue-green alga Tolypothrix t jipanasensis... 

EPTC, a thiocarbamate, inhibited the growth of Tolypothrix tenuis at 0.1 ppm (Ibrahim 1972) and stimulated the growth of Chlorella pyrenoidosa and Hormidium nitens at 0.08 ppm (Platonova 1967), but had no effect on any of the algae used by Cullimore (1975) at ten ppm. At this concentration, molinate was observed to inhibit the growth of the blue-green alga Tolypothrix tenuis (Ibrahim 1972). 

Hamdi, Y. a., a. S. E. Naway, and M. S. Tewfik Effect of herbicides on growth and nitrogen-fixation of alga, Tolypothrix tenuis. Acta. Microbiol. Pol. B. 2, 53 (1970). Hauke-Pacewiczowa, T. Influence of herbicides on the activity of soil microflora. Pamiet Pulawski 46, 5 (1971). 

Mynderse IS, Moore RE. Isotactic polymethoxy-l-alkenes from the blue-green Alga tolypothrix conglutinata var. chlor-ata. Phytochemistry 1979 18 1181-1183. 

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