Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Evelyn A. Havir"'
Autor:
Richard B. Peterson, Evelyn A. Havir
Publikováno v:
Photosynthesis Research. 82:95-107
Defining a quantitative relationship between chlorophyll a fluorescence yield and Photosystem II (PS II) function is important to photosynthesis research. Prior work [Peterson and Havir (2003) Photosynth Res 75: 57-70] indicated an apparent effect of
Autor:
Evelyn A. Havir, Richard B. Peterson
Publikováno v:
Photosynthesis Research. 75:57-70
Complementary techniques of chlorophyll a fluorescence, steady state CO2 exchange, and O2 release during a multiple turnover flash were applied to compare responses to irradiance for leaves of wild type and psbS mutants. The latter included variants
Publikováno v:
Phytochemistry. 48:41-47
Peroxidase (E.C.1.11.1.7) activity in twigs of American (Castanea dentata), Chinese (C. mollissima), and Japanese (C. crenata) chestnut was determined monthly over an eight month period. The total amount of peroxidase activity was highest in December
Publikováno v:
Plant Physiology. 116:259-269
Constructs containing the cDNAs encoding the primary leaf catalase inNicotiana or subunit 1 of cottonseed (Gossypium hirsutum) catalase were introduced in the sense and antisense orientation into the Nicotiana tabacum genome. TheN. tabacum leaf cDNA
Publikováno v:
Plant Science. 123:57-66
The enzyme violaxanthin de-epoxidase (VDE) catalyzes the conversion of violaxanthin (V) to antheraxanthin (A) and zeaxanthin (Z). It has been purified 194-fold with a yield of 1.4% from a sonicate of thylakoids of Spinacea oleracea to a specific acti
Publikováno v:
Phytochemistry. 41:699-702
Total catalase activity per milligram protein averaged three-fold higher in leaves than in green stem or leaf midvein tissue of Nocotiana tabacum . The distribution of total activity between low-peroxidatic (LP-CAT) and enhanced-peroxidatic (EP-CAT)
Autor:
Evelyn A. Havir
Publikováno v:
Plant Physiology. 99:533-537
Seedlings of tobacco (Nicotiana sylvestris) were treated in vivo with 0.03 to 20 millimolar 3-amino-1,2,4-triazole (aminotriazole). There was a rapid loss of catalase (EC 1.11.1.6) activity over the first 5 hours followed by a slower decrease for the
Publikováno v:
Plant Physiology. 97:1592-1595
Experiments were conducted with a tobacco (Nicotiana tabacum) mutant with 40 to 50% greater catalase activity than wild type that is associated with a novel form of O(2)-resistant photosynthesis. The apparent K(m) for H(2)O(2) was the same in mutant
Autor:
Richard B, Peterson, Evelyn A, Havir
Publikováno v:
Photosynthesis research. 75(1)
Complementary techniques of chlorophyll a fluorescence, steady state CO(2) exchange, and O(2) release during a multiple turnover flash were applied to compare responses to irradiance for leaves of wild type and psbS mutants. The latter included varia
Autor:
Evelyn A. Havir, Richard B. Peterson
Publikováno v:
Planta. 214(1)
We describe the properties of npq4-9, a new mutant of Arabidopsis thaliana (L.) Heynh. with reduced nonphotochemical quenching (NPQ) capacity that possesses a single amino acid substitution in the PsbS gene encoding PSII-S, a ubiquitous pigment-bindi