Results 21 to 30 of about 235,537 (313)

Effects of tetracycline on growth and antioxidant system of Selenastrum capricornutum

open access: yesJournal 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

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

open access: yesScientia 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   +5 more
doaj   +1 more source

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

open access: yes, 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/   +10 more
core   +1 more source

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

open access: yesBulletin 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   +2 more
doaj   +1 more source

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

open access: yesJournal 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   +3 more
doaj   +1 more source

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

open access: yesFrontiers 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   +3 more
doaj   +1 more source

Photosynthetic responses of heat-stressed apple leaves to foliar application of salicylic and ascorbic acid

open access: yesPhotosynthetica
High temperatures have significant impacts on fruit tree production. Foliar spraying application of promoting agents can be a sustainable approach to managing high-temperature stress in orchards.
I. MIHALJEVIĆ   +4 more
doaj   +1 more source

Variability of nutrients and chlorophyll a in Ancão Inlet during a spring tidal cycle in April 2009

open access: yesCiencias Marinas, 2011
São Luis or Ancão Inlet is the most western of the six inlets of the Ria Formosa lagoon, in southern Portugal. This inlet contributes relatively little to the water volume exchange over a tidal cycle (~10%).
P Alcântara, A Cravo, J Jacob
doaj   +1 more source

A new approach for estimating northern peatland gross primary productivity using a satellite-sensor-derived chlorophyll index

open access: yes, 2011
Carbon flux models that are largely driven by remotely sensed data can be used to estimate gross primary productivity (GPP) over large areas, but despite the importance of peatland ecosystems in the global carbon cycle, relatively little attention has ...
A. Harris   +4 more
core   +1 more source

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