(1) An an initial stage in the study of proteins from thermophilic algae, the enzyme ribulose 1,5-bisphosphate carboxylase 2-phospho-D-glycerate carboxylyase (dimerizing, EC 4.1.1.39) was purified 11-fold from the thermophilic alga Cyandium caldarium, with a 24% recovery.
(2) The structures of 1 and 2 are closely related to the metabolites previously isolated from the alga Caulerpa prolifera.
(3) We have used two monoclonal antibodies to demonstrate the presence and localization of actin in interphase and mitotic vegetative cells of the green alga Chlamydomonas reinhardtii.
(4) Many other innovations are also being hailed as the future of food, from fake chicken to 3D printing and from algae to lab-grown meat.
(5) Dunaliella bardawil, a unicellular green alga that can be induced to accumulate massive amounts of beta-carotene, is particularly suitable for studies of carotenogenesis regulation and its links to developmental and adaptive processes in the chloroplast.
(6) Among the algae species studied, Falkenbergia rufolanosa is the most active in front of all the fungi tested.
(7) But the study’s co-author Mark Hay, a professor from the Georgia Institute of Technology, said the discovery here was that greater carbon concentrations led to “some algae producing more potent chemicals that suppress or kill corals more rapidly”, in some cases in just weeks.
(8) The light-induced turnover of P700 was measured spectrophotometrically in a wide variety of algae and some photosynthetic mutants.
(9) In excised regenerating peduncles algae divide before digestive cells, and at the onset of digestive cell division mitotic cells were found to contain almost twice the number of algae as before excision.
(10) Cell division in Euglena is compared with that of certain other algae.
(11) An enzyme was isolated from a eucaryotic, Chlorella-like green alga infected with the virus PBCV-1 which exhibits type II restriction endonuclease activity.
(12) The amoeba, however, could not use yeasts, molds, or a green alga as a nutritional source.
(13) The photochemical activities and fluorescence properties of cells, spheroplasts and spheroplast particles from the blue-green alga Phormidium luridum were compared.
(14) Free amino acid pools were examined for cultures of vegetative cells, gametes, and mature zygotes of the unicellular green alga Chlamydomonas reinhardtii (Dangeard).
(15) Crude ferredoxin preparations were obtained from blue-green algae, green algae, ferns, and higher plants.
(16) These organisms, typically bacteria or algae, are used to produce valuable commodities such as flavorings and oils.
(17) A pure culture of the green eukaryotic alga Chlorococcum sp.
(18) The alga may be defective in a regulatory mechanism that controls the reoxidation of reduced pyridine nucleotides formed during photosynthesis.
(19) Methods are described for preparation of pulse-labeled ribonucleic acid (RNA) from the blue-green alga Anacystis nidulans.
(20) Methyl-5(or 4)-(3,3-dimethyl-1-triazeno)-imidazole-4(or 5)-carboxylate was shown to have in vitro antimicrobial activity against gram-positive and gram-negative bacteria, yeasts, filamentous fungi, and algae.
Thallus
Definition:
(n.) A solid mass of cellular tissue, consisting of one or more layers, usually in the form of a flat stratum or expansion, but sometimes erect or pendulous, and elongated and branching, and forming the substance of the thallogens.
Example Sentences:
(1) Peripheral hyphae were separated from the remaining thallus of Rhizoctonia solani in exponential and stationary phases of growth.
(2) The plasmalemma of thallus cells of the aquatic liverwort, Riccia fluitans, is reversibly depolarized by L- and D-serine.
(3) Their variations depend on the physiological and biochemical states of the thallus and on the conditions of extraction and purification.
(4) Thallus development, zoospore size, zoospore ultrastructural complexity and organization, and flagellum length are cited as important in phylogeny of the Chytridiales (chytrids) and should be the bases for this classification.
(5) Previous results showed that cell disintegration in the fungus Podospora anserina occured through the action of two proteases, enzymes whose messengers were normally latent during the extension stage of the thallus.
(6) There are no significant differences in the durrent density over the thallus cell.
(7) Little bromoperoxidase activity was obtained when fresh thallus material was extracted in Tris buffer.
(8) Incipient zoospores are produced from a multinucleate eucarpic thallus and devlop within cleavage vacuoles containing flagella.
(9) The action spectra of light reaction I, we found under these conditions, are very similar to the thallus absorption, whilst the action spectra of light reaction II show, besides strong bands of the phycobilins, only minor bands of chlorophyll a, which account for only 10-20% of the total chlorophyll.
(10) When a particulate enzyme preparation from the thallus of A. niger was incubated with GDP-[(14)C]mannose, the main radioactive products were mannose 1-phosphate (57% of products) and mannose (18%).
(11) In the presence of 10(-5) to 10 (-8) M carbonyl cyanide m-chlorophenylhydrazone (CCCP) the membrane potential of thallus cells of the aquatic liverwort Riccia fluitans responds to changes of the external pH between 5.5 and 8.3.
(12) Many things, in Thoreau's liberated state, are worth the while to see - the feeding manners of chickadees, and the trickles of spring thaw along the railroad cut, "resembling, as you look down on them, the laciniated lobed and imbricated thalluses of some lichens".
(13) By the four-cell stage, chloroplasts of the rhizoid cells have weakly staining lamellae, while chloroplasts of the thallus cells are actively dividing with deeply staining lamellae.
(14) These observations are interpreted as evidence that the thallus of A. niger contains a mannose transferase that uses the phosphate of exo-methylene-hexahydropolyprenols as an acceptor.
(15) This study demonstrates that it is possible to select for more and more toxigenic strains or for less and less active ones starting with the same thallus.
(16) Bromoperoxidase I (which has been described before) was located inside the thallus, particularly around the conceptacles, whereas bromoperoxidase II was present at the thallus surface of the alga.
(17) Using fluorescein isothiocyanate-labeled lectins of various specificities, differences in the cell wall polysaccharide composition among the different parts of the thallus and during the cycle of S communis were demonstrated.
(18) We selected three mutant strains in which the constitutive activity of the protease messengers was expressed by an arrest of growth early in development (10 to 30 hours after spore germination) and a reaction of cell disintegration, in the thallus, suppressible with beta-phenyl pyruvic acid, a protease inhibitor.
(19) The enzyme activity is first detected in a few algae undergoing aplanosporogenesis and later in medullary hyphae that reach the dividing algae by elongating perpendicularly to the thallus surface.
(20) The thallus and life cycle of Neocallimastix R1 are compared with those of aerobic chytrids.