scholarly journals Tissue-specific expression and post-translational modifications of plant- and bacterial-type phosphoenolpyruvate carboxylase isozymes of the castor oil plant, Ricinus communis L.

2011 ◽  
Vol 62 (15) ◽  
pp. 5485-5495 ◽  
Author(s):  
Brendan O’Leary ◽  
Eric T. Fedosejevs ◽  
Allyson T. Hill ◽  
James Bettridge ◽  
Joonho Park ◽  
...  
Keyword(s):  
Phosphoenolpyruvate Carboxylase ◽  
Castor Oil ◽  
Ricinus Communis ◽  
Specific Expression ◽  
Post Translational Modifications ◽  
Tissue Specific ◽  
Tissue Specific Expression ◽  
Ricinus Communis L ◽  
Oil Plant ◽  
Bacterial Type

scholarly journals Production and environmental impact of Ricinus Communis L oil for biofuel purposes

DYNA ◽  
2019 ◽  
Vol 86 (210) ◽  
pp. 137-142
Author(s):  
Laksmi Penabad Sanz ◽  
Diego Rubio Erazo ◽  
Pedro Antonio Rodríguez Ramos ◽  
Lourdes Zumalacárregui de Cárdenas ◽  
Osney Pérez Ones
Keyword(s):  
Energy Source ◽  
Environmental Impact ◽  
Castor Oil ◽  
Ricinus Communis ◽  
Business Plan ◽  
Economic Feasibility ◽  
Middle Level ◽  
Impact Categories ◽  
Ricinus Communis L ◽  
Oil Plant

This research shows the benefits of castor oil biomass with biofuel purposes, as a renewable energy source for Ecuador, as well as the economic feasibility of its production. The main considerations of every step of the business plan are summarized, placing greater emphasis on environmental and financial processes. Nineteen impact categories at the middle level and four impact categories at the final level were considered. The weighted environmental impact of the oil production for biofuel purposes ranks as a small impact: 9.74 %, so castor oil plant is environmentally friendly biomass.

Evaluation of eleven genotypes of castor oil plant ( Ricinus communis L.) for the production of biodiesel

2015 ◽  
Vol 77 ◽  
pp. 484-490 ◽  
Author(s):  
Jaime Armendáriz ◽  
Magín Lapuerta ◽  
Francisco Zavala ◽  
Eduardo García-Zambrano ◽  
Maria del Carmen Ojeda
Keyword(s):  
Castor Oil ◽  
Ricinus Communis ◽  
Ricinus Communis L ◽  
Oil Plant

Isoenzymes of the glycolytic and pentose-phosphate pathways during the development of the castor oil seed

1981 ◽  
Vol 59 (8) ◽  
pp. 1423-1425 ◽  
Author(s):  
Robert J. Ireland ◽  
David T. Dennis
Keyword(s):  
Pyruvate Kinase ◽  
Castor Oil ◽  
Ricinus Communis ◽  
Pentose Phosphate ◽  
Phosphogluconate Dehydrogenase ◽  
Hexose Phosphate ◽  
Oil Synthesis ◽  
Ricinus Communis L ◽  
Oil Plant ◽  
Pentose Phosphate Pathways

Plastid and cytosolic isozymes of pyruvate kinase, hexose-phosphate isomerase, and 6-phosphogluconate dehydrogenase have been isolated and separated from seeds of the castor oil plant (Ricinus communis L.) at different stages of development. These enzymes can be detected 24 days after pollination, when the plastids contain 14% of the total cellular activities of both the pyruvate kinase and hexose-phosphate isomerase and 40% of the 6-phosphogluconate dehydrogenase activities. At this stage the seed consists mainly of nucellus, that is subsequently replaced by endosperm. The activities of the plastid isozymes increase faster than the cytosolic isozymes, until after 40 days, when endosperm fills the seed, the plastids contain 25% of the hexose-phosphate isomerase, 70% of the 6-phosphogluconate dehydrogenase, and 40% of the pyruvate kinase activities. The development of the plastid isozymes correlates with the increase in oil synthesis. This supports a central role for plastids in oil synthesis.

Tissue-specific expression of phosphoenolpyruvate carboxylase in sorghum

1988 ◽  
Vol 66 (12) ◽  
pp. 1287-1294
Author(s):  
Elisabeth A. Abergel ◽  
Bernard R. Glick
Keyword(s):  
Protein Synthesis ◽  
Seed Germination ◽  
Phosphoenolpyruvate Carboxylase ◽  
De Novo ◽  
Northern Hybridization ◽  
De Novo Synthesis ◽  
Specific Expression ◽  
Tissue Specific ◽  
Tissue Specific Expression ◽  
De Novo Protein Synthesis

The synthesis and expression of phosphoenolpyruvate carboxylase (PEP-C) mRNA in sorghum tissue (i.e., leaf, shoot, and root) were monitored for several days after seed germination by Northern hybridization and measurement of de novo protein synthesis. In 2- to 8-day-old leaves and shoots, PEP-C accounted for approximately 8.9 and 2.5%, respectively, of the newly synthesized proteins. In addition, mRNA from both leaves and shoots, detected by hybridization with a heterologous PEP-C probe, is present in relatively constant amounts from 2 to 9 days after seed germination. In roots, on the contrary, a peak of RNA that hybridizes to the probe was observed approximately 6 days after seed germination, when de novo synthesis of the enzyme was barely detectable in this tissue. Northern hybridization experiments indicate the presence of putative mRNA species of approximately 3.1 and 5.9 kilobases. The data are rationalized in terms of the postulated existence of a stable but translationally inactive precursor of PEP-C mRNA in sorghum roots.

Sign in / Sign up

Export Citation Format

Share Document