The Nature of Arsenic-Phytochelatin Complexes in Holcus lanatus and Pteris cretica
نویسندگان
چکیده
منابع مشابه
The nature of arsenic-phytochelatin complexes in Holcus lanatus and Pteris cretica.
We have developed a method to extract and separate phytochelatins (PCs)-metal(loid) complexes using parallel metal(loid)-specific (inductively coupled plasma-mass spectrometry) and organic-specific (electrospray ionization-mass spectrometry) detection systems-and use it here to ascertain the nature of arsenic (As)-PC complexes in plant extracts. This study is the first unequivocal report, to ou...
متن کاملChemical constituents of Pteris cretica Linn. (Pteridaceae)
1. Subject and Source The group of fern from the genus Pteris (Pteridaceae) contains 250 cosmopolitan species (Mabberley, 1997). One species, P. cretica (Japanese name: ohbano-inomotoso) called Cretan brake fern is widely distributed in the temperate and warm area of Japan. Although some fern members of the family Pteridaceae are well known to contain carcinogenic C-14 illudane-type sesquiterpe...
متن کاملPhytochelatins are involved in differential arsenate tolerance in Holcus lanatus.
Arsenate tolerance is conferred by suppression of the high-affinity phosphate/arsenate uptake system, which greatly reduces arsenate influx in a number of higher plant species. Despite this suppressed uptake, arsenate-tolerant plants can still accumulate high levels of As over their lifetime, suggesting that constitutive detoxification mechanisms may be required. Phytochelatins are thiol-rich p...
متن کاملArsenic complexes in the arsenic hyperaccumulator Pteris vittata (Chinese brake fern).
Pteris vittata (Chinese brake fern), the first reported arsenic (As) hyperaccumulating plant, can be potentially applied in the phytoremediation As-contaminated sites. Understanding the mechanisms of As tolerance and detoxification in this plant is critical to further enhance its capability of As hyperaccumulation. In this study, an unknown As species, other than arsenite (AsIII) or arsenate (A...
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از محوری ترین اثراتی که یک فیلم سینمایی ایجاد می کند دیالوگ هایی است که هنرپیش گان فیلم میگویند. به زعم یک فیلم ساز, یک شیوه متأثر نمودن مخاطب از اثر منظوره نیروی گفتارهای گوینده, مثل نیروی عاطفی, ترس آور, غم انگیز, هیجان انگیز و غیره, است. این مطالعه به بررسی این مسأله مبادرت کرده است که آیا نیروی فراگفتاری هنرپیش گان به مثابه ی اعمال گفتاری در پنج فیلم هالیوودی در نسخه های دوبله شده باز تولید...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 2004
ISSN: 1532-2548,0032-0889
DOI: 10.1104/pp.103.033506