Results 161 to 170 of about 1,126 (188)

Effect of inorganic carbon supply on the photosynthetic physiology of Gracilaria tenuistipitata

Planta, 1994
Gracilaria tenuistipitata Zhang et Xia was cultured for 15 d at low, normal and high inorganic carbon concentrations under constant light, temperature and nutrient conditons. Carbonic anhydrase (CA; EC 4.2.1.1.) activity, ribulose-1,5-bisphosphate carboxylase/ oxygenase (Rubisco; EC 4.1.1.39) content, pigment content and C/N ratio were measured, and ...
Mar�aJ. Garc�a-S�nchez, Jos�A. Fern�ndez, Xavier Niell   +2 more
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The α-galactosidase of Gracilaria tenuistipitata and G. sordida (Gracilariales, Rhodophyta)

Phycologia, 1990
Abstract An α-galactosidase (α-galactopyranoside galactohydrolase, EC 3.2.1.22) has been isolated from the red seaweeds Gracilaria tenuistipitata Zhang et Xia from China and Gracilaria sordida W. Nelson from New Zealand, and its properties have been investigated.
S. Yu, M. Pedersén
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Reference genes for transcript quantification in Gracilaria tenuistipitata under drought stress

Journal of Applied Phycology, 2016
Gracilaria tenuistipitata is a red macroalga often found in intertidal environments, where it is frequently under drought stress due to tidal water scarcity. In order to be able to study the molecular mechanisms involved in G. tenuistipitata resistance to dehydration, we have done a dehydration assay, tested different RNA extraction protocols, and ...
Cicero Alves-Lima, Natale Cavaçana, Gustavo Antonio Teixeira Chaves, Natalia Oliveira de Lima, Eliezer Stefanello, Pio Colepicolo, Carlos Takeshi Hotta   +6 more
openaire   +1 more source

Role of carbonic anhydrase in photosynthesis and inorganic-carbon assimilation in the red alga Gracilaria tenuistipitata

Planta, 1992
The mechanism of inorganic-carbon (Ci) accumulation in the red seaweed Gracilaria tenuistipitata Zhang et Xia has been investigated. Extracellular and intracellular carbonic-anhydrase (CA) activities have been detected. Photosynthetic O2 evolution in thalli and protoplasts of G.
Haglund, K, Bjork, M, Ramazanov, Z, García-Reina, Guillermo, Pedersen, M   +4 more
openaire   +3 more sources

Analysis of expressed sequence tags from the agarophyte Gracilaria tenuistipitata (Rhodophyta)

Journal of Applied Phycology, 2011
A total of 3,631 expressed sequence tags (ESTs) were established from two size-selected cDNA libraries made from the tetrasporophytic phase of the agarophytic red alga Gracilaria tenuistipitata. The average sizes of the inserts in the two libraries were 1,600 bp and 600 bp, with an average length of the edited sequences of 850 bp. Clustering gave 2,387
Pi Nyvall Collén, Jonas Collén, Marcelo da Silva Reis, Marianne Pedersén, João C. Setubal, Alessandro M. Varani, Pio Colepicolo, Mariana C. Oliveira   +7 more
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Responses of the macroalga Gracilaria tenuistipitata var. liui (Rhodophyta) to iron stress

Journal of Applied Phycology, 2000
Chlorophyll (Chl), phycoerythrin (PE), total nitrogen (TN% dw) and Fein tissues were measured in Fe-deficient cultures of Gracilariatenuistipitata var. liui over a period of 60 days. 55Fe uptakeand photosynthetic carbon fixation (NaH14CO3) werecompared in Fe-rich and Fe-deficient cultures and analyzed the effects ofFe-deficiency on the ultrastructure ...
Jingwen Liu, Shuanglin Dong, Xiaoyun Liu, Shen Ma   +3 more
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Antioxidant Potential of Solvent Partitioned Extraction from Aqueous Extract of Gracilaria Tenuistipitata

Current Organic Chemistry, 2015
Many algal extracts or algal bioactive ingredients have potential in suppressing cancer or different biological mechanisms. We previously found that aqueous extracts of Gracilaria tenuistipitata (AEGT) contained abundant antioxidants with protective effects against several reactive oxygen species (ROS) related ...
Chi-Chen Yeh, Hurng-Wern Huang, Yang-Chang Wu, Chia-Chuan Chung, Shyng-Shiou F. Yuan, Fang-Rong Chang, Hsueh-Wei Chang   +6 more
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Effects of photoacclimation on plasma membrane ferricyanide reductase from the rhodophyta Gracilaria tenuistipitata

Plant Science, 2002
The red macroalga Gracilaria tenuistipitata has a plasma membrane redox system easily assayed as a ferricyanide reductase (EC 1.6.99.13) activity. This activity is associated with acidification of the medium and is modulated by light conditions. G. tenuistipitata thalli adapt to light conditions by changes affecting their morphology, physiology and ...
Esther Melgarejo, Estrella Carnicas, Francisco Xavier Niell, Miguel Ángel Medina   +3 more
openaire   +1 more source

Proximate composition and the production of fermentable sugars, levulinic acid, and HMF from Gracilaria fisheri and Gracilaria tenuistipitata cultivated in earthen ponds

Journal of Applied Phycology, 2018
The red seaweeds are generally known to have a high content of polysaccharides and low content of lignin. They can be used as a bioethanol feedstock and to produce biochemicals. This study was conducted to examine the pretreatment conditions to improve the production of fermentable sugars and by-products from Gracilaria fisheri and Gracilaria ...
Nattawarit Nunraksa, Surichay Rattanasansri, Jantana Praiboon, Anong Chirapart   +3 more
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RNA Isolation method for polysaccharide rich algae: agar producing Gracilaria tenuistipitata (Rhodophyta)

Journal of Applied Phycology, 2007
RNA isolation is essential to study gene expression at the molecular level. However, RNA isolation is difficult in organisms (plants and algae) that contain large amounts of polysaccharides, which co-precipitate with RNA. Currently, there is no commercial kit available, specifically for the isolation of high-quality RNA from these organisms ...
Vanessa Dos Reis Falcão, Angela Pedroso Tonon, Mariana Cabral Oliveira, Pio Colepicolo   +3 more
openaire   +1 more source