نتایج جستجو برای: plant tissue
تعداد نتایج: 1273980 فیلتر نتایج به سال:
The present study was carried out to evaluate phytochemicals of pods of Leucaena leucocephala. The phytochemical analysis was performed using 50% ethanolic extracts of pods powder of Leucaena leucocephala. Quantitative analysis of phytochemicals like phenols, flavonoids and tannins was done. Phytochemical analysis revealed the presence of alkaloids, flavonoids, phenols, tannins, saponins, carbo...
Plants are valuable sources of a vast array of chemical compounds like alkaloids, flavonoids, pigments, antimicrobials, pharmaceutical, etc. The majority of the compounds were produced by plants during different stages of cell, tissues and organ differentiation. Plant tissue culture is the process by which parts of plant can be grown in vitro condition in a sterile culture medium. The nutrient ...
Plant roots represent an important food source for soil-dwelling animals, but tracking herbivore food choices below-ground is difficult. Here, we present an optimized PCR assay for the detection of plant DNA in the guts of invertebrates, using general plant primers targeting the trnT-F chloroplast DNA region. Based on this assay, we assessed the influence of plant identity on the detectability ...
A survey of 153 acid grasslands from the Atlantic biogeographic region of Europe indicates that chronic nitrogen deposition is changing plant species composition and soil and plant-tissue chemistry. Across the deposition gradient (2-44 kg N ha(-1) yr(-1)) grass richness as a proportion of total species richness increased whereas forb richness decreased. Soil C:N ratio increased, but soil extrac...
Role of humic acids (HA) in plant tissue culture as plant growth regulators has been reviewed. Humic acid is a principal component of humic substances, which are the most important organic constituents of the soil (humus). Humus is defined as the organic matter in soil, a mixture of partially and totally humified substances. Leonardite is the best source for humic acid and it is extracted by us...
A method for quantifying the effect of medium composition on the diffusive mass transfer of hydrophobic organic chemicals through thin layers was applied to plant tissue. The method employs two silicone disks, one serving as source and one as sink for a series of PAHs diffusing through thin layers of water, potato tissue, and carrot tissue. Naphthalene, phenanthrene, anthracene, and fluoranthen...
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