Fungicides and insecticides effects on photosynthesis and
photoprotective mechanisms in A. thaliana under high light and
high temperature stress

a 2009

Fungicides and insecticides effects on photosynthesis and photoprotective mechanisms in A. thaliana under high light and high temperature stress

LANG, Jaroslav, Miloš BARTÁK, Kristýna VEČEŘOVÁ a Hana CEMPÍRKOVÁ

Základní údaje

Originální název

Fungicides and insecticides effects on photosynthesis and photoprotective mechanisms in A. thaliana under high light and high temperature stress

Název česky

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Autoři

LANG, Jaroslav (203 Česká republika, garant), Miloš BARTÁK (203 Česká republika), Kristýna VEČEŘOVÁ (203 Česká republika) a Hana CEMPÍRKOVÁ (203 Česká republika)

Vydání

7th International Conference of Ph.D. Students on Experimental Plant Biology, MZLU, Brno, Czech Republic, 30th June – 1st July 2009, 2009

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10600 1.6 Biological sciences

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Kód RIV

RIV/00216224:14310/09:00028579

Organizační jednotka

Přírodovědecká fakulta

ISBN

978-80-7375-310-8

Klíčová slova česky

fotoinhibice, fotoochrana, fotosyntéza, stres, antioxidanty

Klíčová slova anglicky

photoinhibition; photoprotection; photosynthesis; stress; antioxidants

Změněno: 11. 8. 2010 10:38, prof. Ing. Miloš Barták, CSc.

Anotace

ORIG CZ

V originále

In cultivations of the most common experimental plant A. thaliana, chemical control is unevoidable. We invesigated co-effects of fungicides/insecticides and high light/heat treatments. Wild type A. thaliana (Columbia) and LHC-defficient mutants (Lhcb 2-1) were used and treated each 30 d by the following chemicals: (1) Previcur 607SL, (2) Zolone 35EC, (3) a mixture of 0,25% Previcur and 0,2% Zolone, and (4) untreated control. Additionally, the plants were exposed to 2 short-term treatmets: (a) 1000 micromol m-2 s-1 of PAR (high light = HL) for 60 min and (b) combination of HL and 30 oC. Treatment effects on photosynthesis were monitored by a PAM-2000 fluorometer. Before and after the treatments, pigments were extracted from leaf tissue and HPLC determined: contents of chla, chlb, viola-, anthera-, zeaxanthin, lutein, beta-carotene were evaluated by a HPLC (Waters). Results showed that Previcur plus Zolone caused oxidative stress in chloroplasts even in control plants indicaded by increased values of zeaxanthin and DEPS. In Lhcb mutants, Fv/Fm decreased after HL and temperature treatments which was attributed to negative short-term effects in photosystem II. Supported by FRVS 1546/2008.

Česky

Práce přináší poznatky o společných účincích fungicidů/insekticidů kombinovaných s vysokými hodnotami ozáření a vysokou teplotou na rostliny, respektive jejich fotosyntetický aparát.

Návaznosti

KJB601630808, projekt VaV

Název: Účinky chladu a mrazu na fotosyntézu lišejníkových symbiotických řas ovlivněných ribitolem.

Investor: Akademie věd ČR, Účinky chladu a mrazu na fotosyntézu lišejníkových symbiotických řas ovlivněných ribitolem

Citovat

LANG, Jaroslav, Miloš BARTÁK, Kristýna VEČEŘOVÁ a Hana CEMPÍRKOVÁ. Fungicides and insecticides effects on photosynthesis and photoprotective mechanisms in A. thaliana under high light and high temperature stress. In 7th International Conference of Ph.D. Students on Experimental Plant Biology, MZLU, Brno, Czech Republic, 30th June – 1st July 2009. 2009. ISBN 978-80-7375-310-8.

@proceedings{842885,
   author = {Lang, Jaroslav and Barták, Miloš and Večeřová, Kristýna and Cempírková, Hana},
   booktitle = {7th International Conference of Ph.D. Students on Experimental Plant Biology, MZLU, Brno, Czech Republic, 30th June – 1st July 2009},
   keywords = {photoinhibition; photoprotection; photosynthesis; stress; antioxidants},
   language = {eng},
   isbn = {978-80-7375-310-8},
   title = {Fungicides and insecticides effects on photosynthesis and photoprotective mechanisms in A. thaliana under high light and high temperature stress},
   url = {http://phd.czweb.org/phd09/},
   year = {2009}
}

TY  - CONF
ID  - 842885
AU  - Lang, Jaroslav - Barták, Miloš - Večeřová, Kristýna - Cempírková, Hana
PY  - 2009
TI  - Fungicides and insecticides effects on photosynthesis and photoprotective mechanisms in A. thaliana under high light and high temperature stress
SN  - 9788073753108
KW  - photoinhibition
KW  - photoprotection
KW  - photosynthesis
KW  - stress
KW  - antioxidants
UR  - http://phd.czweb.org/phd09/
N2  - In cultivations of the most common experimental plant A. thaliana, chemical control is unevoidable. We invesigated co-effects of fungicides/insecticides and high light/heat treatments. Wild type A. thaliana (Columbia) and LHC-defficient mutants (Lhcb 2-1) were used and treated each 30 d by the following chemicals: (1) Previcur 607SL, (2) Zolone 35EC, (3) a mixture of 0,25% Previcur and 0,2% Zolone, and (4) untreated control. Additionally, the plants were exposed to 2 short-term treatmets: (a) 1000 micromol m-2 s-1 of PAR (high light = HL) for 60 min and (b) combination of HL and 30 oC. Treatment effects on photosynthesis were monitored by a PAM-2000 fluorometer. Before and after the treatments, pigments were extracted from leaf tissue and HPLC determined: contents of chla, chlb, viola-, anthera-, zeaxanthin, lutein, beta-carotene were evaluated by a HPLC (Waters). Results showed that Previcur plus Zolone caused oxidative stress in chloroplasts even in control plants indicaded by increased values of zeaxanthin and DEPS. In Lhcb mutants, Fv/Fm decreased after HL and temperature treatments which was attributed to negative short-term effects in photosystem II. Supported by FRVS 1546/2008.
ER  -

LANG, Jaroslav, Miloš BARTÁK, Kristýna VEČEŘOVÁ a Hana CEMPÍRKOVÁ. Fungicides and insecticides effects on photosynthesis and photoprotective mechanisms in A. thaliana under high light and high temperature stress. In \textit{7th International Conference of Ph.D. Students on Experimental Plant Biology, MZLU, Brno, Czech Republic, 30th June – 1st July 2009}. 2009. ISBN~978-80-7375-310-8.

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