نتایج جستجو برای: pteris vittata
تعداد نتایج: 572 فیلتر نتایج به سال:
Arsenic uptake by plants is species-specific and its level in terrestrial of uncontaminated sites ranged from 0.009 to 1.5 mg/kg. Plants with high metal or metalloid capability their biomass are called hyperaccumulators. The most efficient arsenic (As) hyperaccumulator belongs Pteridaceae species Pteris vittata L. Pityrogramma calomelanos L., both can accumulate more than 8000 mg/kg As above-gr...
The development of an effective and green bioinsecticide is a research hotspot. This study demonstrated the possibility using arsenic (As) hyperaccumulator as bioinsecticide. When As concentration in Pteris vittata fronds exceeded 138 mg kg?1, larva hawk moth (Theretra clotho) displayed apparent preference to lower-As-concentration P. fronds. body was high 850 kg?1. Such might have been case th...
The Transition Edge Sensor (TES)-Energy Dispersive Spectrometer (EDS) is an X-ray detector with high-energy resolution (12.8 eV). The TES can be mounted to a scanning electron microscope (SEM). The TES-EDS is based on a cryogen-free dilution refrigerator. The high-energy resolution enables analysis of the distribution of various elements in samples under low acceleration voltage (typically unde...
The extent of arsenic (As) and metal accumulation in fronds of the As hyperaccumulator Pteris vittata (Chinese brake fern) and in leaves of Cyperus involucratus, which grow on the surface of an old flotation tailings pond in the Zambian Copperbelt province, was studied. The tailings consist of two types of material with distinct chemical composition: (1) reddish-brown tailings rich in As, iron ...
Morphology and ploidy level determination of Pteris vittata callus during induction and regeneration
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