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  • 1
    Online Resource
    Online Resource
    Photosynthesis : Regulation under Varying Light Regimes. (2004)
    Boca Raton :Taylor & Francis Group,
    Details
    Keywords: Photosynthesis. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (184 pages)
    Edition: 1st ed.
    ISBN: 9781482294446
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=5938902
    DDC: 572.46
    Language: English
    Note: Cover -- Title Page -- Copyright Page -- Contents -- Preface -- 1. Light Interception : Basics and Structural Aspects -- 1.1. Introduction -- 1.2. Light Harvesting -- 1.3. Structure and Role of Antennae -- 1.4. Composition of Photosystems -- 1.5. Photosystem II : Composition and Structure -- 1.5A. Reaction Centre of Photosystem II -- 1.6. Photosystem I - Structure and Organization -- I.6A. Reaction Centre of Photosystem I -- 1.6B. Core Complex of Photosystem I -- 2. Photoinhibition -- 2.1. Introduction -- 2.2. Occurrence of Photoinhibition -- 2.3. Photoinhibition of Photosystem II -- 2.3A. Acceptor Side Photoinhibition -- 2.3B. Donor Side Mechanism -- 2.4. Photoinactivation -- 2.5. Degradation of D1 Protein -- 2.5A. Proteolysis of Damaged D1 Protein -- 2.5B. Resynthesis of D1 Protein and Insertion -- 2.5C. Restoration of Functional Assembly of Photosystem II -- 2.6. Photoinhibition of PS I -- 3. Photoprotection -- 3.1. Introduction -- 3.2. Thermal Dissipation of Excitation Energy -- 3.2A. Site of quenching -- 3.2B. Mechanism of qE -- 3.3. Xanthophyll Cycle -- 3.3A. Mechanism -- 3.3B. Pigments of xanthophyll cycle and their structure -- 3.3C. Roel of Xanthophyll Cycel -- 3.3D. Prevention of Lipid Oxidation Stress -- 3.4A. A Reactive Oxygen Species (ROS) : Production of Active Oxygen -- 3.4B. Antioxidant System in Scavenging Active Oxygen -- 3.5. Additional Electron Sinks -- 4. Leaf Heliotropism, Solar Tracking and Regulation of Light Interception -- 4.1. Introduction -- 4.2. Paraheliotropism and Significance -- 4.3. Diaheliotropism -- 4.4. Leaf Heliotropism and Photosystem II Efficiency -- 4.5. Site of Perception and Mechanism of Leaf Movements -- 5. Acclimation of Photosynthesis to Light Environment -- 5.1. Introduction -- 5.2. Regulation -- 5.3. Acclimation to Irradiance Levels -- 5.4. Acclimation in Mature Leaves. , 5.5. Acclimation to Changing Light Regime -- 6. Transgenic and Biotechnological Approaches -- 6.1. Introduction -- 6.2. Photosystems : Reaction Centres -- 6.3. Light Harvesting Antennae -- 6.4. Photoinhibition : Transgenics -- 6.5. Functional Genomics of Plant Photosynthesis -- 7. Concluding Remarks -- 8. References -- Author Index -- Subject Index.
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  • 2
    Electronic Resource
    Electronic Resource
    Interference of herbicides with photochemical activities of chloroplasts in six shrub species (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Weed research 20 (1980), S. 0 
    Details
    ISSN: 1365-3180
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The effects of paraquat and 2,4,5-T on the photochemical activities of chloroplasts from the leaves of the woody species Carissa spinarum, Maba buxifolia, Flacourtia sepiaria, Chomelia asiatica, Gymnosporia emarginata and Dodonaea viscosa were investigated by comparing the effects on isolated chloroplasts from untreated leaves with those on chloroplasts isolated from herbicide-sprayed plants. DCPIP and NADP reduction of chloroplasts incubated in paraquat or 2,4,5-T solution was inhibited, whereas that of chloroplasts isolated from most species sprayed with these herbicides was enhanced after 24 and 48 h. The enhancement was smaller or disappeared after 72 h. The cyclic and noncyclic photophosphorylation rates were suppressed in chloroplasts isolated from herbicide-treated plants, and also in those from most untreated plants incubated in the herbicide solutions. The differences in reactions of chloroplasts from herbicide-treated and untreated plants are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3180.1980.tb00060.x
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  • 3
    Electronic Resource
    Electronic Resource
    Photochemical Characteristics of Mesophyll and Bundle Sheath Chloroplasts from C4 Plants (1978)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 43 (1978), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Mesophyll and bundle sheath chloroplasts were isolated by differential grinding from the leaves of two NADP-ME C4 plants, Setaria italica Beauv. cv. H-1, Pennisetum typhoides S & H. cv. AKP-2, and a NAD-ME C4 species Amaranthus paniculatus L. The mesophyll chloroplasts of C4 plants possessed slightly lower Km for ADP and Pi than those of bundle sheath chloroplasts.The Hill reaction activities and noncyclic photophosphorylation rates of the bundle sheath chloropiasts from S. italica and P. typhoides were less than one-fifth of those by the mesophyll chloroplasts. But the bundle sheath chloroplasts of A. paniculatus exhibited high rates of Hill reaction, cyclic as well as noncyclic photophosphorylation. The pigment- and eyiochrome composition suggested a relative enrichment of PS 1 in bundle sheath chloroplasts of S. italica and P. typhoides. The chain exists in both mesophyll and bundle sheath chloroplasts. As much as 35–52% of leaf chlorophyll was located in the bundle sheath chloroplasts. The photochemical activities of bundle sheath chloroplasts are significant though a major part of leaf photochemical potential is associated with the mesophyll chloroplasts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1978.tb01576.x
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  • 4
    Electronic Resource
    Electronic Resource
    Chemotaxonomical investigation ofnyctanthes (1966)
    Springer
    Naturwissenschaften 53 (1966), S. 439-439 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00654526
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  • 5
    Electronic Resource
    Electronic Resource
    Phytochemical phylogeny of the Brassicaceae (Cruciferae) from the Capparidaceae (1975)
    Springer
    Naturwissenschaften 62 (1975), S. 577-578 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01166978
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  • 6
    Electronic Resource
    Electronic Resource
    CAM behavior in a grain legume, chickpea (1979)
    Springer
    Naturwissenschaften 66 (1979), S. 54-55 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00369364
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  • 7
    Electronic Resource
    Electronic Resource
    Simultaneous occurrence of C 3 and C 4 photosyntheses in relation to leaf position in Mollugo nudicaulis (1978)
    [s.l.] : Nature Publishing Group
    Nature 273 (1978), S. 143-144 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Plants of M. nudicaulis L. were collected from their natural habitat on the campus of Sri Venkateswara University (approximately 12-h photoperiod with temperatures of 35 C by day and 25 C by night). Plants chosen were about 8 weeks old with unbranched stems each bearing 12-14 leaves, the first ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/273143a0
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  • 8
    Electronic Resource
    Electronic Resource
    Mechanism of stomatal movement (1977)
    [s.l.] : Nature Publishing Group
    Nature 266 (1977), S. 282-282 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ACCORDING to Bowling's malate-switch hypothesis1 of stomatal action, the pH changes in the guard cell create a gradient of monovalent malate towards either guard cells or epidermal cells causing a diffusion of K+ (bound to monovalent malate) along with the gradient. His theory is based on (1) ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/266282a0
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  • 9
    Electronic Resource
    Electronic Resource
    Non-Volatile Organic Acids in Some Liverworts (1963)
    [s.l.] : Nature Publishing Group
    Nature 198 (1963), S. 970-970 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE occurrence and metabolism of organic acids in liverworts had not been investigated until a chromato-graphic survey had been made by Allsopp1. However, he failed to detect any acids in eight genera investigated by him and was of the opinion that non -volatile organic acids may be totally absent ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/198970a0
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  • 10
    Electronic Resource
    Electronic Resource
    C4 photosynthetic carbon metabolism in the leaves of aromatic tropical grasses — I. Leaf anatomy, CO2 compensation point and CO2 assimilation (1981)
    Springer
    Photosynthesis research 2 (1981), S. 225-233 
    Details
    ISSN: 1573-5079
    Keywords: aromatic grasses ; C4 photosynthesis ; Cymbopogon ; Vetiveria
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A few species of Cymbopogon and Vetiveria are potentially important tropical grasses producing essential oils. In the present study, we report on the leaf anatomy and photosynthetic carbon assimilation in five species of Cymbopogon and Vetiveria zizanioides. Kranz-type leaf anatomy with a centrifugal distribution of chloroplasts and exclusive localization of starch in the bundle sheath cells were common among the test plants. Besides the Kranz leaf anatomy, these grasses displayed other typical C4 characteristics including a low (0–5 µl/l) CO2 compensation point, lack of light saturation of CO2 uptake at high photon flux densities, high temperature (35°C) optimum of net photosynthesis, high rates of net photosynthesis (55–67 mg CO2 dm-2 leaf area h-1), little or no response of net photosynthesis to atmospheric levels of O2 and high leaf 13C/12C ratios. The biochemical studies with 14CO2 indicated that the leaves of the above plant species synthesize predominantly malate during short term (5 s) photosynthesis. In pulse-chase experiments it was shown that the synthesis of 3-phosphoglycerate proceeds at the expense of malate, the major first formed product of photosynthesis in these plant species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00056259
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