Počet záznamů: 1  

Changes in the Content of Indole-3-Acetic Acid and Cytokinins in Spruce, Fir and Oak Trees after Herbicide Treatment

  1. 1.
    0172268 - UEB-Q 20023053 RIV CZ eng J - Článek v odborném periodiku
    Matschke, J. - Macháčková, Ivana
    Changes in the Content of Indole-3-Acetic Acid and Cytokinins in Spruce, Fir and Oak Trees after Herbicide Treatment.
    Biologia Plantarum. Roč. 45, č. 3 (2002), s. 375-382. ISSN 0006-3134. E-ISSN 1573-8264
    Grant CEP: GA ČR GA206/00/1354; GA MŠMT LN00A081
    Výzkumný záměr: CEZ:AV0Z5038910
    Klíčová slova: Abies nordmanniana * anatomical changes * forest decline
    Kód oboru RIV: EF - Botanika
    Impakt faktor: 0.583, rok: 2002

    Treatment of spruce, fir and oak trees with herbicides, which may be one of the forest damage inducing agents, caused pronounced changes in the contents and distribution of indole-3-acetic acid (IAA) and cytokinins (CKs) one year after treatment, i.e. at the time of the first microscopically visible damage in treated trees. In Picea pungens IAA content increased in the terminal buds by about 105 % and in the apical buds of the first order branches by 220 %. The same was true for young sprouts of Abies nordmanniana, while in leaves of oak trees IAA content was decreased by 15 % after glyphosate treatment and by 30 % after 2,4-dichlorophenoxyacetic acid (2,4-D) treatment. Another striking feature was a significantly decreased content of IAA in the lower parts of roots in Picea pungens (50 % of the control), which is accompanied by an increase in IAA content in the middle part of the roots (130 %). On the other hand, the IAA content of both sprouts and roots of A. nordmanniana was significantly increased after herbicide treatment.
    Trvalý link: http://hdl.handle.net/11104/0069307

     
     

Počet záznamů: 1  

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