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Photosynthetic responses of lettuce to downy mildew infection and cytokinin treatment
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SYSNO ASEP 0349657 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Photosynthetic responses of lettuce to downy mildew infection and cytokinin treatment Tvůrce(i) Prokopová, J. (CZ)
Špundová, M. (CZ)
Sedlářová, M. (CZ)
Husičková, A. (CZ)
Novotný, R. (CZ)
Doležal, Karel (UEB-Q) RID, ORCID
Nauš, J. (CZ)
Lebeda, A. (CZ)Zdroj.dok. Plant Physiology and Biochemistry. - : Elsevier - ISSN 0981-9428
Roč. 48, č. 8 (2010), s. 716-723Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. FR - Francie Klíč. slova Bremia lactucae ; Benzylaminopurine ; Chlorophyll fluorescence imaging Vědní obor RIV EB - Genetika a molekulární biologie CEP 1M06030 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy GP522/02/D011 GA ČR - Grantová agentura ČR GD522/08/H003 GA ČR - Grantová agentura ČR CEZ AV0Z50380511 - UEB-Q (2005-2011) UT WOS 000280232800011 DOI 10.1016/j.plaphy.2010.04.003 Anotace Changes in primary metabolism of lettuce induced by compatible interaction with biotrophic oomycete pathogen Bremia lactucae under two intensities of illumination in the presence or absence of exogenous cytokinins were studied by chlorophyll fluorescence imaging. Thirteen days post-inoculation leaf discs infected by B. lactucae exhibited impairments of photosynthesis associated with biotrophic infection. Detected changes in photosynthetic parameters correlated with the leaf area colonized by the pathogen´s intercellular hyphae. Application of two cytokinins, previously shown to suppress B. lactucae sporulation if applied 24h prior to inoculation at a concentration of 200 μM, retarded the pathogen´s asexual reproduction with no apparent negative effects on host´s photosynthetic apparatus. However, long-lasting treatment of healthy tissues with this high concentration of exogenous cytokinin led to effects parallel to pathogenesis. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2011
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