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Wyszukujesz frazę "Rubisco" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Heterologous expression and initial characterization of recombinant RbcX protein from Thermosynechococcus elongatus BP-1 and the role of RbcX in RuBisCO assembly
Autorzy:
Tarnawski, Miroslaw
Gubernator, Beata
Kolesinski, Piotr
Szczepaniak, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/1040686.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
RbcX
purification
expression
Thermosynechococcus elongatus
RuBisCO assembly
Opis:
In the cyanobacterial RuBisCO operon from Thermosynechococcus elongatus the rbcX gene is juxtaposed and cotranscribed with the rbcL and rbcS genes which encode large and small RuBisCO subunits, respectively. It has been suggested that the rbcX position is not random and that the RbcX protein could be a chaperone for RuBisCO. In this study, the RbcX protein from T. elongatus was overexpressed, purified and preliminary functional studies were conducted. The recombinant protein purified from Escherichia coli extracts was predominantly present in a soluble fraction in a dimeric form. Coexpression experiments have demonstrated that RbcX can mediate RbcL dimer (L2) formation, and that it is essential for the L8 core complex assembly. This is the first characterization of the RbcX protein from a thermophilic organism.
Źródło:
Acta Biochimica Polonica; 2008, 55, 4; 777-785
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molecular markers of delayed senescence in transgenic tobacco with enhanced cytokinin level
Autorzy:
Skowron, Ernest
Trojak, Magdalena
Sobala, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/1190060.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
tobacco
delayed senescence
cytokinin
ipt
SAG12
chlorophyll
Rubisco LSU
superoxide dismutase
Opis:
Cytokinins are phytohormones that promote plant growth and development. They stimulate cell division and upregulate expression of photosynthetic-associated genes. However, the main reason for cytokinin research is their anti-senescing action used to delay the onset of plant senescence, improve productivity and postharvest storage. Exogenously applied cytokinins, like 6-benzylaminopurine, are commonly use to slow down or even inhibit the leaf yellowing and prolong lifespan of economically important plants. Similar effects, the regreening of mature fully-developed basal leaves, can be obtained by removal the top of the plant redirecting cytokinins flow from roots back to the ageing structures. Nevertheless, the real breakthrough was the engineering of transgenic tobacco plants with an inserted gene of cytokinins biosynthetic pathway (ipt) fused with a senescence-specific promoter (PSAG12). Enhanced hormones synthesis results in a leaf ageing retardation and its negative auto-regulated activity prevents developmental abnormalities. We studied the capacity of elevated hormone level in the transgenic tobacco to reduce chlorophyll, soluble proteins and Rubisco degradation in plants exposed to nine days of light deprivation. We also investigated possible correlation between the enhanced cytokinin synthesis and antioxidant properties of PSAG12-IPT plants analyzing three isoforms of superoxide dismutase. This paper is an attempt to determine molecular and physiological basis of cytokinin role in an inhibition of leaf ageing.
Źródło:
World Scientific News; 2016, 51; 13-25
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Differential responses of aquatic and aerobic forms of Echinochloa crus-galli (L.) Beauv. and E. colona (L.) Link. by morpho-physiological and molecular analysis
Autorzy:
Khedr, A.-H.A.
Serag, M.M.
Shaaban, H.E.
Abogadallah, G.M.
Powiązania:
https://bibliotekanauki.pl/articles/9989.pdf
Data publikacji:
2017
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
alcohol dehydrogenase
ADH zob.alcohol dehydrogenase
aquatic form
aerobic form
Echinochloa crus-galli
Echinochloa colona
habitat alteration
morphophysiological analysis
molecular analysis
phosphoenolopyruvate carboxylase
Rubisco
Opis:
Echinochloa crus-galli and E. colona are serious weeds around the world. Morphological and biochemical features of aquatic and aerobic forms of both species were investigated experimentally by transplanting the seedlings reciprocally between water-saturated and aerobic soils (70% field capacity). When the plants were grown in water-saturated soil, a significant decrease in tiller height was observed in E. crus-galli, but not in E. colona. Upon growing the plants in aerobic soil, internode length and spike dry weight increased significantly in E. crus-galli, but decreased significantly in E. colona. Growth under aerobic condition caused a significant increase in PEPC/Rubisco ratio, but a significant decrease was observed under water-saturated conditions. When E. crus-galli was transplanted in aerobic soil, several forms of peroxidase were upregulated. Contrarily, in E. colona peroxidase isoforms did not respond to habitat change. Gene expression of ADH in E. colona was constitutive at a fairly high level under native habitats then enhanced with reversing habitat that caused anoxic and mild drought conditions. Both species tend to grow faster under aerobic conditions by modifying the photosynthetic machinery and capacity of scavenging of reactive oxygen species. Furthermore, ADH appears to play a role in supporting growth under water-saturated conditions.
Źródło:
Environment, Earth and Ecology; 2017, 1, 1
2543-9774
2451-4225
Pojawia się w:
Environment, Earth and Ecology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aggregation of LS Rubisco in response to exposure of plants to low irradiance
Autorzy:
Grabsztunowicz, M.
Jackowski, G.
Powiązania:
https://bibliotekanauki.pl/articles/79910.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
Rubisco
aggregation
bifunctional enzyme
terrestrial plant
holoenzyme
reactive oxygen species
oxidative modification
plant exposure
irradiance
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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