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Photochemistry And Enzymology Of Photosynthesis Progress Report November 1 1977 March 31 1978
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Book Synopsis Photochemistry and Enzymology of Photosynthesis. Progress Report, November 1, 1977--March 31, 1978 by :
Download or read book Photochemistry and Enzymology of Photosynthesis. Progress Report, November 1, 1977--March 31, 1978 written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress is reported on the following studies: mass spectrometer studies of oxygen and carbon dioxide exchange in photosynthesis; effects of iodoacetamide on oxygen uptake; proton and electron exchange associated with reactions between photosystem I and photosystem II; and observations of a long-lived excited state of P700. (HLW).
Book Synopsis Photochemistry and Enzymology of Photosynthesis. Progress Report, November 1, 1978--March 31, 1979 by :
Download or read book Photochemistry and Enzymology of Photosynthesis. Progress Report, November 1, 1978--March 31, 1979 written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors continued seeking the source of electrons for the Calvin cycle in bundle sheath chloroplasts of C4 plants using corn or spinach leaves that are free from mesophyll but still retain their photochemical activity. Results indicate that cross transfer of electrons between photosynthetic chains occurs both upstream with plastoquinone and downstream with cytochrome f. (PCS).
Download or read book Energy Research Abstracts written by and published by . This book was released on 1982 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Photochemistry and Enzymology of Photosynthesis. Progress Report, November 1, 1978-May 31, 1981 by :
Download or read book Photochemistry and Enzymology of Photosynthesis. Progress Report, November 1, 1978-May 31, 1981 written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Three different aspects of photosynthesis are being investigated. Three different technical approaches are being used (i.e., mass spectrometry; biochemical techniques; and a combination of polarographic, spectroscopic, and fluorescence techniques). In the first group of experiments, a specially designed mass spectrometer system was used to monitor the gas exchange in chloroplasts in response to single short flashes of light. Several gases and their isotopes (e.g., N2, 15N2, 18O2, etc.) were monitored to study photosystem II reactions in chloroplasts, particularly those reactions that use donors other than H2 16O (and evolve products other than 16O2). Our goal was to obtain a better understanding of the O2-evolving system. The second topic studied was the role of copper in photosynthesis. Biochemical techniques were applied to investigating the role of nonplastocyanin copper in photosystem II- and photosystem I-mediated O2 uptake via polyphenol oxidase. The third area of study was light harvesting and electron transport in C4 plants. Many aspects of carbon flow in C4 plants seem to be well understood; however, the distribution of photons and the flow of electrons in the two tissues of the leaves of C4 plants remain enigmatic. We used polarographic, spectroscopic, and fluorescence techniques to gain an understanding of these processes.
Book Synopsis Photochemistry and Enzymology of Photosynthesis. Progress Report, November 1, 1979-March 31, 1980 by :
Download or read book Photochemistry and Enzymology of Photosynthesis. Progress Report, November 1, 1979-March 31, 1980 written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress is reported for the period November 1979 through March 1980. Specific projects reported on are: (1) light harvesting and electron transport in C4 plants; (2) mass spectrometer studies of photosynthetic O2 evolution; (3) biochemical studies on chloroplast copper proteins; and (4) electron transport in green plants. (ACR).
Book Synopsis Photochemistry and Enzymology of Photosynthesis. Progress Report, April 1, 1978--August 31, 1978 by :
Download or read book Photochemistry and Enzymology of Photosynthesis. Progress Report, April 1, 1978--August 31, 1978 written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress is reported in the following areas of research: light harvesting and electron transport in C4 plants; mass spectrometer studies; measurements in flashing light; spectrophotometric studies; and, redox titration of the plastoquinone pool. (JGB).
Book Synopsis Photochemistry and Enzymology of Photosynthesis. Progress Report, November 1, 1980-March 31, 1981 by :
Download or read book Photochemistry and Enzymology of Photosynthesis. Progress Report, November 1, 1980-March 31, 1981 written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of progress made in the study of mechanisms of photosynthesis during the last quarter are reported. Mass spectroscopy studies of photosystem II donor reactions have continued. Photooxidation of hydrazine and hydroxylamine is described. Experiments on tetraphenylboron oxidation by photosystem II are described. Metal-containing proteins in the electron transport chain involved with photosynthesis are being investigated. (DMC).
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1979 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Book Synopsis Photochemistry and Enzymology of Photosynthesis. Progress Report, August 1, 1976--January 30, 1977 by :
Download or read book Photochemistry and Enzymology of Photosynthesis. Progress Report, August 1, 1976--January 30, 1977 written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress is reported on studies of photooxidation and photocatalyzed dismutation of H2O2 in dark-adapted chloroplasts or after flash illumination; flash-induced proton uptake and release in chromatophores isolated from photosynthetic bacteria; the dependence of base-induced fluorescence on the redox potential of chloroplasts in suspensions; and the kinetic parameters related to O2 and CO2 uptake in whole algae.
Download or read book Solar Energy Update written by and published by . This book was released on 1981 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index: Keyword A-L by :
Download or read book Government Reports Annual Index: Keyword A-L written by and published by . This book was released on 1979 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Photochemistry and Enzymology of Photosynthesis. Progress Report, August 1, 1972--July 31, 1973 by :
Download or read book Photochemistry and Enzymology of Photosynthesis. Progress Report, August 1, 1972--July 31, 1973 written by and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Photochemistry and Enzymology of Photosynthesis. One Year Technical Progress Report, August 1, 1973--July 31, 1974 by :
Download or read book Photochemistry and Enzymology of Photosynthesis. One Year Technical Progress Report, August 1, 1973--July 31, 1974 written by and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1979-07 with total page 1024 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Photochemistry and Enzymology of Photosynthesis. Annual Progress Report, May 1, 1975--April 30, 1976 by :
Download or read book Photochemistry and Enzymology of Photosynthesis. Annual Progress Report, May 1, 1975--April 30, 1976 written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Work during the reporting period can be separated into four main topics. Highlights include oxygen evolution, proton transport, acid-base induced fluorescence changes, and mass spectrometer studies. Under some conditions we have observed the apparent transition of S1 to S2 in the dark. Redox titrations showed that this transition has a midpoint potential of 400 mV at pH 7, and a pH dependence of 60 mV per pH unit. The proton uptake and release that apparently accompany the reduction and oxidation of plastoquinone were found to oscillate with a period of two in flashing light. Proton release associated with the O2-evolving system was found to oscillate with a period of four in flashing light; however, only one-half of the protons seemed to be liberated in the final O2-evolving step. We found that three to four protons per electron were transported from the outside to the inside of the thylakoid, which suggests that at each coupling site one electron transports two protons simultaneously. Further evidence was obtained for a base-induced backflow of electrons to the System II acceptor Q.A subsequent fluorescence transient, which could not be readily rationalized in the context of standard models, was also observed. Using whole algae, we observed that molecular O2 directly competes with CO2 for photosynthetically generated reducing power via a process unrelated to carbon metabolism. In a study using CO2-depleted chloroplasts, we found that bicarbonate was not the immediate source of O2 in the bicarbonate-dependent Hill reaction.
Book Synopsis Photochemistry and Enzymology of Photosynthesis - Three Year Technical Progress Report by :
Download or read book Photochemistry and Enzymology of Photosynthesis - Three Year Technical Progress Report written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis (Appendix to COO--3162-48) Comprehensive Three Year Report, September 1, 1975-November 30, 1978 Including Annual Progress Report, December 1, 1977-November 30, 1978 by :
Download or read book (Appendix to COO--3162-48) Comprehensive Three Year Report, September 1, 1975-November 30, 1978 Including Annual Progress Report, December 1, 1977-November 30, 1978 written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in biochemical reaction kinetics of photosynthetic energy conversion is reported. (PCS).
