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Effects of pre-treatments with abscisic acid and/or benzyladenine on gas exchange of French bean, sugar beet, and maize leaves during water stress and after rehydration

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F04%3A00109159" target="_blank" >RIV/61389030:_____/04:00109159 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Effects of pre-treatments with abscisic acid and/or benzyladenine on gas exchange of French bean, sugar beet, and maize leaves during water stress and after rehydration

  • Original language description

    Net photosynthetic rate (PN), transpiration rate (E), and stomatal conductance (g(s)) during water stress and after rehydration were measured in Phaseolus vulgaris, Beta vulgaris, and Zea mays. Immediately before imposition of water stress by cessation of watering, plants were irrigated with water ( control), 100 muM abscisic acid (ABA), and/or 10 muM N-6-benzyladenine ( BA). In all three species, application of ABA decreased gs, E, and PN already 1 h after application. However, during water stress g(s), E, and P-N in plants pre-treated with ABA remained higher than in plants pre-treated with water. Positive effects of ABA application were observed also after rehydration. In contrast, the effects of pretreatment with BA were species-specific. While inbean plants BA application ameliorated negative effect of water stress, only very slight effects were observed in maize, and in sugar beet BA even aggravated the effects of water stress.

  • Czech name

    Vliv předpůsobení kyselinou abscisovou a benzyladeninem na výměnu plynů listů fazolu, cukrovky a kukuřice v průběhu vodního stresu a následné rehydratace

  • Czech description

    Rychlost fotosyntézy (PN), transpirace (E) a vodivost průduchů (gs) byla měřena u listů rostlin Phaseolus vulgaris, Beta vulgaris a Zea mays v průběhu vodního stresu a po rehydrataci. Těsně před navozením vodního deficitu přerušením zálivky, rostliny byly zality buď vodou (kontrola), 100 ?M kyselinou abscisovou (ABA), nebo 10 ?M N6-benzyladeninem (BA). U všech tři druhů rostlin aplikace ABA snižovala gs, E a PN již po 1 hodinovém působení. Naproti tomu v průběhu vodního stresu hodnoty gs, E a PN byly vyšší u rostlin po předpůsobení ABA než u kontrolních rostlin. Positivní vliv ABA byl pozorován také po rehydrataci rostlin. Naproti tomu, vliv předpůsobení BA byl závislý na druhu rostliny: u fazolu aplikace BA zmírnila negativní vliv vodního stresu, u kukuřice byl vliv aplikace BA nevýrazný a u cukrovky aplikace BA dále snížila parametry výměny plynů.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    ED - Physiology

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA522%2F02%2F1099" target="_blank" >GA522/02/1099: The interactions between cytokinins and abscisic in stomatal regulation of gas exchange</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2004

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Biologia Plantarum

  • ISSN

    0006-3134

  • e-ISSN

  • Volume of the periodical

    48

  • Issue of the periodical within the volume

    3

  • Country of publishing house

    CZ - CZECH REPUBLIC

  • Number of pages

    5

  • Pages from-to

    395-399

  • UT code for WoS article

  • EID of the result in the Scopus database