Results 11 to 20 of about 169,141 (297)

The lack of plastidal transit sequence cannot override the targeting capacity of Bradyrhizobium japonicum δ-aminolevulinic acid synthase in transgenic rice

open access: yesBiologia Plantarum, 2010
The δ-aminolevulinic acid synthase (ALA-S) is an enzyme which catalyzes the synthesis of δ-aminolevulinic acid (ALA). The Bradyrhizobium japonicum ALA-S coding sequence lacking plastidal transit sequence was introduced into the rice genome (C line).
K. Back, S. Jung
doaj   +1 more source

Application of DINCAE to Reconstruct the Gaps in Chlorophyll-a Satellite Observations in the South China Sea and West Philippine Sea

open access: yesRemote Sensing, 2020
The Data Interpolating Empirical Orthogonal Functions (DINEOF) method has demonstrated usability and accuracy for filling spatial gaps in remote sensing datasets.
Zhaohui Han   +3 more
doaj   +1 more source

Retrieval of Chlorophyll-a Concentrations in the Coastal Waters of the Beibu Gulf in Guangxi Using a Gradient-Boosting Decision Tree Model

open access: yesApplied Sciences, 2021
Remote sensing for the monitoring of chlorophyll-a (Chl-a) is essential to compensate for the shortcomings of traditional water quality monitoring, strengthen red tide disaster monitoring and early warnings, and reduce marine environmental risks. In this
Huanmei Yao   +4 more
doaj   +1 more source

Long-Term Trends and Impact of SARS-CoV-2 COVID-19 Lockdown on the Primary Productivity of the North Indian Ocean

open access: yesFrontiers in Marine Science, 2021
COrona VIrus Disease (COVID) 2019 pandemic forced most countries to go into complete lockdown and India went on complete lockdown from 24th March 2020 to 8th June 2020.
N. Sunanda   +4 more
doaj   +1 more source

Nutrient concentrations and trophic state of three Andean lakes from Junín, Perú

open access: yesRevista Ambiente & Água, 2020
The study assessed the trophic state of three lakes used as fish farms in the region of Junín-Peru, under different hydrological conditions. Surface water samples were collected from three points at each lake in 2018 during the rainy (March-April) and ...
Fernán Chanamé-Zapata   +3 more
doaj   +1 more source

ESTIMASI ZONA POTENSIAL PENANGKAPAN IKAN (ZPPI) PROVINSI BENGKULU MENGGUNAKAN CITRA SATELIT MODIS AQUA

open access: yesJFMR-Journal of Fisheries and Marine Research, 2019
The research aims to; (1) knowing the traditional parameters of the Bengkulu province community in determining fishing zones, (2) mapping the potential fishing zones (ZPPI) in the West Coast waters of Bengkulu province.
Rina Julita, Mr. Mujiono
doaj   +1 more source

Influence of alcoholic extracts from Helianthus annnus L. roots on the photosynthetic activity of Sinapis alba L. cv. Barka plants

open access: yesActa Agriculturae Scandinavica. Section B, Soil and Plant Science, 2020
Allelopathy substances stimulate or inhibit seed germination, growth and development of plant species living in their neighbouring, or occupying the same place directly after them.
Joanna Puła   +5 more
doaj   +1 more source

Estudo das diferentes formas de fósforo nas águas da plataforma continental do Amazonas Study of different forms of phosphorus in the Amazon continental shelf waters

open access: yesQuímica Nova, 2007
Hydrological samples were collected on the continental shelf of the Amazon river to determine particulate organic and inorganic matter, dissolved organic phosphorus (DOP), phosphate, total particulate phosphorus (TPP), chlorophyll a, temperature ...
Maria de Lourdes Souza Santos   +3 more
doaj   +1 more source

Relationship between chlorophyll a pigment and algal geometric biovolume determination in a floodplain lake (Ciénaga Ayapel, Córdoba-Colombia)

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2012
The estimation of biomass of planktonic algae can be done by two methods, the quantification of geometric biovolume and chlorophyll a. This work which considers as environmental scenario the Ayapel-Cordoba flood-plain lake, introduces (presents) the two
Esnedy Hernández   +2 more
doaj   +1 more source

Caspian Sea is eutrophying: the alarming message of satellite data

open access: yesEnvironmental Research Letters, 2020
The competition over extracting the energy resources of the Caspian Sea together with the major anthropogenic changes in the coastal zones have resulted in increased pollution and environmental degradation of the sea.
Anahita Modabberi   +6 more
doaj   +1 more source

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