Image from Google Jackets

Simulated acid rain induces lipid peroxidation and membrane damage in foliage

By: Contributor(s): Material type: ArticleArticleLanguage: English Description: 7(5):333-338Subject(s): LOC classification:
  • 23299
 In: Plant, Cell and EnvironmentSummary: Durante 7 dias se rociaron plantas jovenes de frijol con lluvia acida simulada durante periodos de 2 h. La difraccion de rayos X de amplio angulo revelo un lipido de fase gel en un segmento que contenia predominantemente membranas de cloroplastos aislados de hojas tratadas; la temp. de transicion de la fase lipida de estas membranas se elevo desde menos de -30 grados centigrados hasta aprox. 36 grados centigrados durante el periodo de tratamiento. La formacion del lipido de fase gel se asocia con la peroxidacion del lipido y es, consiguientemente, significativo el hecho de que la produccion de etano y los niveles de malondialdehido (productos ambos de la peroxidacion de lipidos) aumentaran en las hojas durante el periodo del tratamiento. Hubo tambien un aumento en la produccion de etileno y en el radical superoxido, las cuales son respuestas tipicas del tejido de la planta a la toxicidad. (RA- CIAT)Summary: Young bean plants were misted daily for 7 days with simulated acid rain for a 2-h period. Wide angle X-ray diffraction revealed gel-phase lipid in a fraction containing predominantly chloroplast membranes isolated from treated leaves and lipid-phase transition temp. of these membranes rose from below -30 degrees Celsius to approx. 36 degrees Celsius during the treatment period. The formation of gel-phase lipid is associated with lipid peroxidation and it is therefore significant that production of ethane and levels of malondialdehyde, both products of lipid peroxidation, rose in the leaves throughout the treatment period. There was also increased production of ethylene and superoxide radical, which are typical responses of plant tissue to toxicity. (AS)
Tags from this library: No tags from this library for this title.
Star ratings
    Average rating: 0.0 (0 votes)
Holdings
Item type Current library Collection Call number Copy number Status Date due Barcode Item holds
Journal Article Journal Article CIAT Library Document collection CINFOS Document Collection CINFOS 23299 (Browse shelf(Opens below)) c.1 Short Loan 100058424
Total holds: 0

Durante 7 dias se rociaron plantas jovenes de frijol con lluvia acida simulada durante periodos de 2 h. La difraccion de rayos X de amplio angulo revelo un lipido de fase gel en un segmento que contenia predominantemente membranas de cloroplastos aislados de hojas tratadas; la temp. de transicion de la fase lipida de estas membranas se elevo desde menos de -30 grados centigrados hasta aprox. 36 grados centigrados durante el periodo de tratamiento. La formacion del lipido de fase gel se asocia con la peroxidacion del lipido y es, consiguientemente, significativo el hecho de que la produccion de etano y los niveles de malondialdehido (productos ambos de la peroxidacion de lipidos) aumentaran en las hojas durante el periodo del tratamiento. Hubo tambien un aumento en la produccion de etileno y en el radical superoxido, las cuales son respuestas tipicas del tejido de la planta a la toxicidad. (RA- CIAT)

Young bean plants were misted daily for 7 days with simulated acid rain for a 2-h period. Wide angle X-ray diffraction revealed gel-phase lipid in a fraction containing predominantly chloroplast membranes isolated from treated leaves and lipid-phase transition temp. of these membranes rose from below -30 degrees Celsius to approx. 36 degrees Celsius during the treatment period. The formation of gel-phase lipid is associated with lipid peroxidation and it is therefore significant that production of ethane and levels of malondialdehyde, both products of lipid peroxidation, rose in the leaves throughout the treatment period. There was also increased production of ethylene and superoxide radical, which are typical responses of plant tissue to toxicity. (AS)

Powered by Koha