Mostrando 401 - 420 Resultados de 9,694 Para Buscar '"chlorophyll"', tiempo de consulta: 0.44s Limitar resultados
  1. 401
  2. 402
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  4. 404
    “…The results showed that the chlorophyll a, chlorophyll b, and total chlorophyll contents in the HY were significantly lower than the LY’s, which might have been caused by the activation of several genes related to chlorophyll degradation, such as SGR and CLH. …”
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  5. 405
    “…TC Hellen dramatically altered the marine environment in the northern Mozambique Channel, resulting in a significant chlorophyll-a (Chl-a) bloom. A giant surface Chl-a northwest-ward movement from the northwest coast of Madagascar Island was first observed after the passage of TC Hellen in the northern Mozambique Channel. …”
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  6. 406
    “…METHODS: To evaluate the possibility of detecting cucumber chilling injury using chlorophyll fluorescence (ChlF) technology, we investigated the continuous changes in ChlF parameters under various low-temperature conditions and created the criteria for evaluating chilling injury. …”
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  7. 407
    “…Magnesium chelatase is a conserved enzyme complex responsible for the first committed step of chlorophyll biosynthesis in photosynthetic organisms, which is the addition of magnesium to the chlorophyll precursor, protoporphyrin IX. …”
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  8. 408
    “…Low temperature, steady-state, optical spectroscopic methods were used to study the spectral features of peridinin-chlorophyll-protein (PCP) complexes in which recombinant apoprotein has been refolded in the presence of peridinin and either chlorophyll a (Chl a), chlorophyll b (Chl b), chlorophyll d (Chl d), 3-acetyl-chlorophyll a (3-acetyl-Chl a) or bacteriochlorophyll a (BChl a). …”
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  9. 409
    por Eilam, Yael, Klein, S.
    Publicado 1962
    “…Leaves floated on water under low light intensity (2 foot-candles) were low in chlorophyll and contained plastids with concentric rows of vesicles. …”
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  10. 410
    Publicado 1981
    “…The newly imported polypeptides are assembled correctly in the thylakoid lipid bilayer and they bind chlorophylls. Thus, these soluble membrane polypeptide precursors must move from the cytoplasm through the two chloroplast envelope membranes, the stroma, and finally insert into the thylakoid membranes, where they assemble with chlorophyll to form the light-harvesting chlorophyll protein complex.…”
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  11. 411
    por Ehlert, Britta, Hincha, Dirk K
    Publicado 2008
    “…CONCLUSION: Chlorophyll fluorescence imaging is an alternative method to accurately determine the freezing tolerance of leaves. …”
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  12. 412
    “…The changes in major photosynthetic parameters during increasing water deficit were monitored via chlorophyll fluorescence imaging and the selection of the maximum efficiency of photosystem II (F(v)/F(m)) parameter as the most straightforward and practical means of monitoring survival is described. …”
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  13. 413
    “…This study addresses the importance of these new bands for the retrieval and monitoring of two important biophysical parameters: green leaf area index (LAI) and chlorophyll content (Ch). With data from several ESA field campaigns over agricultural sites (SPARC, AgriSAR, CEFLES2) we have evaluated the efficacy of two empirical methods that specifically make use of the new Sentinel-2 bands. …”
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  14. 414
    “…Cryptophytes are exceptional among photosynthetic chromalveolates as they use both chlorophyll a/c proteins and phycobiliproteins for light harvesting. …”
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  15. 415
  16. 416
    “…The discovery of the cyanobacterium Prochloron was the first finding of a bacterial oxyphototroph with chlorophyll (Chl) b, in addition to Chl a. It was first described as Prochloron didemni but a number of clades have since been described. …”
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  17. 417
    “…This encompases all data used to justify previous assignments and provides a simple interpretation of unexplained complex decoherence phenomena associated with Q(x) → Q(y) relaxation. Whilst most chlorophylls conform to the Gouterman model and display two independent transitions Q(x) (S(2)) and Q(y) (S(1)), strong vibronic coupling inseparably mixes these states in chlorophyll-a. …”
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  18. 418
  19. 419
    “…Biogenesis of thylakoid membranes in chloroplasts requires the coordinated synthesis of chlorophyll and photosynthetic proteins with the galactolipids monogalactosyldiacylglycerol (MGDG) and digalactosyldiacylglycerol (DGDG), which constitute the bulk of the thylakoid lipid matrix. …”
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  20. 420
    “…Here, we have tested the capacity of chlorophyll a fluorescence (ChlF) imaging based methods for the first time on intact whole plants and employed advanced statistical classifiers and feature selection rules for finding combinations of images able to discriminate cold tolerant and cold sensitive plants. …”
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