Results 21 to 30 of about 114,080,730 (297)

Effects of tetracycline on growth and antioxidant system of Selenastrum capricornutum

Journal of Hebei University of Science and Technology, 2019
In order to study the toxic effects of tetracycline on algae, Selenastrum capricornutum is selected as the test organism. The growing situation, chlorophyll a contents, superoxide dismutase (SOD) activity, malondialdehyde (MDA) content and reactive ...
Yaxue WANG, Pengpeng WU, Hongyan SHEN
doaj   +1 more source

Chlorophyll and Chlorophyll Catabolite Analysis by HPLC [PDF]

, 2018
The most obvious event of leaf senescence is the loss of chlorophyll. Chlorophyll degradation proceeds in a well-characterized pathway that, although being common to higher plants, yields a species-specific set of chlorophyll catabolites, termed phyllobilins.
Das, Aditi, Guyer, Luzia, Hörtensteiner, Stefan   +2 more
openaire   +3 more sources

Conversion of Chlorophyll b to Chlorophyll a and the Assembly of Chlorophyll with Apoproteins by Isolated Chloroplasts [PDF]

Plant Physiology, 1997
Abstract The photosynthetic apparatus is reorganized during acclimation to various light environments. During adaptation of plants grown under a low-light to high-light environment, the light-harvesting chlorophyll a/b-protein complexes decompose concomitantly with an increase in the core complex of photosystem II.
T., Ohtsuka, H., Ito, A., Tanaka
openaire   +2 more sources

Role of physical forcings and nutrient availability on the control of satellite-based chlorophyll a concentration in the coastal upwelling area of the Sicilian Channel

Scientia Marina, 2010
The northern sector of the Sicilian Channel is an area of favourable upwelling winds, which ought to support primary production. However, the values for primary production are low when compared with other Mediterranean areas and very low compared with ...
Bernardo Patti, Cástor Guisande, Angelo Bonanno, Gualtiero Basilone, Angela Cuttitta, Salvatore Mazzola   +5 more
doaj   +1 more source

Deriving sun-induced chlorophyll fluorescence from airborne based spectrometer data [PDF]

, 2010
Sun-induced chlorophyll fluorescence (Fs) is a promising parameter for remote measuring plant photosynthesis. It has been demonstrated that Fs at cell and leaf level is strongly related to photosynthesis.
Schaepman, Michael E; https://orcid.org/, Rascher, U., Schaepman, M., Schickling, A, Schaepman, M.E., Schlapfer, D., Schläpfer, D, Rascher, U, Damm, A; https://orcid.org/, Damm, A., Schickling, A.   +10 more
core   +1 more source

Investigation of Chlorophyl-a Derived Compounds as Photosensitizer for Photodynamic Inactivation

Bulletin of Chemical Reaction Engineering & Catalysis, 2021
Chlorophyll has unique physicochemical properties which makes them good as photosensitizer of Photodynamic Inactivation (PDI). The physicochemical properties of chlorophyll as photosensitizer can be optimized through several routes.
Listiana Oktavia, Irma Mulyani, Veinardi Suendo   +2 more
doaj   +1 more source

Impact of iron oxide nanoparticles on yellow medick (Medicago falcata L.) plants

Journal of Plant Interactions, 2020
A large number of studies have explored the effects of various nanoparticles (NPs) on different economically important plant species. In this study, yellow medick plants were grown for five weeks using hydroponics with the addition of Fe3O4 NPs at 1, 2 ...
Inese Kokina, Ilona Plaksenkova, Marija Jermaļonoka, Anastasija Petrova   +3 more
doaj   +1 more source

A Bayesian approach for remote sensing of chlorophyll-a and associated retrieval uncertainty in oligotrophic and mesotrophic lakes [PDF]

, 2022
Satellite remote sensing of chlorophyll-a concentration (chla) in oligotrophic and mesotrophic lakes faces uncertainties from sources such as atmospheric correction, complex inherent optical property compositions, and imperfect algorithmic retrieval.
Kutser, T, Gupana, Remika, Spyrakos, E, Hunter, Peter D, Tyler, Andrew N, Lehmann, Moritz K, Tyler, AN, Werther, Mortimer, Gurlin, D, Gupana, R, Varley, Adam, Spyrakos, Evangelos, Odermatt, D, Gurlin, Daniela, Lehmann, MK, Simis, SGH, Kutser, Tiit, Varley, A, Werther, M, Simis, Stefan G H, Odermatt, Daniel, Hunter, PD   +21 more
core   +1 more source

Optimization and effects of different culture conditions on growth of Halomicronema hongdechloris – a filamentous cyanobacterium containing chlorophyll f

Frontiers in Plant Science, 2014
A chlorophyll f containing cyanobacterium, Halomicronema hongdechloris (H. hongdechloris) was isolated from a stromatolite cyanobacterial community. However, the extremely slower growth rate of H. hongdechloris culture became a critical factor, hindering
Yaqiong eLi, Yuankui eLin, Patrick C Loughlin, Min eChen   +3 more
doaj   +1 more source

Extinction coefficient for red-shifted chlorophylls: Chlorophyll d and chlorophyll f

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2012
Both chlorophyll f and chlorophyll d are red-shifted chlorophylls in oxygenic photosynthetic organisms, which extend photon absorbance into the near infrared region. This expands the range of light that can be used to drive photosynthesis. Quantitative determination of chlorophylls is a crucial step in the investigation of chlorophyll-photosynthetic ...
Li, Yaqiong, Scales, Nicholas, Blankenship, Robert E., Willows, Robert D., Chen, Min   +4 more
openaire   +2 more sources