PMID- 26263519
OWN - NLM
STAT- MEDLINE
DCOM- 20160902
LR  - 20200930
IS  - 1873-2690 (Electronic)
IS  - 0981-9428 (Linking)
VI  - 96
DP  - 2015 Nov
TI  - Plastoquinone redox state modifies plant response to pathogen.
PG  - 163-70
LID - S0981-9428(15)30074-7 [pii]
LID - 10.1016/j.plaphy.2015.07.028 [doi]
AB  - The role of PQ (plastoquinione) redox state in establishment of response to 
      pathogen infection (Botrytis cinerea) was tested along the regulation of main 
      antioxidative enzymes (superoxide dismutase - SOD, catalase - CAT) and 
      photochemistry of PSII (photosystem II) in Mesembryanthemum crystallinum plants 
      performing C3 and CAM (Crassulacean acid metabolism) carbon metabolism. The redox 
      state of PQ was modified by two inhibitors of photosynthetic electron transport 
      resulting in a more oxidised (3-(3,4-dichlorophenyl)-1,1-dimethylurea; DCMU) or 
      reduced (2,5-dibromo-3-methyl-6-isopropyl-p-benzoquinone; DBMIB) PQ redox state 
      simulating darkness and high light conditions, respectively. Irrespective of the 
      type of treatment (mock inoculation or pathogen inoculation) SOD activity 
      depended on the PQ pool. Our results suggest that regarding changes in 
      infection-induced CAT activity, plants developed response that is vital for 
      hypersensitive-like (HR-like) response establishment only when PQ pool generated 
      signal was similar to that in light presence (DBMIB pre-treatment). When PQ pool 
      generated signal was similar to darkness, CAT activity response remained 
      stress-independent, similarly to SOD. Fluorescence parameters of PSII, Qp 
      (photochemical quenching coefficient) and NPQ (non-photochemical quenching) were 
      affected only in the tissues treated with DCMU in stress-independent manner. We 
      suggest that in case of abiotic and biotic stresses signals emerging from PQ pool 
      indirectly orchestrate plant response and carbon metabolism affects this 
      regulatory pathway.
CI  - Copyright (c) 2015 Elsevier Masson SAS. All rights reserved.
FAU - Nosek, Michal
AU  - Nosek M
AD  - Institute of Biology, Pedagogical University, Podbrzezie 3, 31-054 Krakow, 
      Poland.
FAU - Kornas, Andrzej
AU  - Kornas A
AD  - Institute of Biology, Pedagogical University, Podbrzezie 3, 31-054 Krakow, 
      Poland.
FAU - Kuzniak, Elzbieta
AU  - Kuzniak E
AD  - Department of Plant Physiology and Biochemistry, Faculty of Biology and 
      Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland.
FAU - Miszalski, Zbigniew
AU  - Miszalski Z
AD  - Malopolska Centre of Biotechnology, Jagiellonian University, Gronostajowa 7a, 
      30-387 Krakow, Poland; Institute of Plant Physiology, Polish Academy of Sciences, 
      Niezapominajek 21, 30-239 Krakow, Poland. Electronic address: 
      zbigniew.miszalski@uj.edu.pl.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20150730
PL  - France
TA  - Plant Physiol Biochem
JT  - Plant physiology and biochemistry : PPB
JID - 9882449
RN  - EC 1.11.1.6 (Catalase)
RN  - EC 1.15.1.1 (Superoxide Dismutase)
RN  - OAC30J69CN (Plastoquinone)
SB  - IM
MH  - Catalase/metabolism
MH  - Fluorescence
MH  - *Host-Pathogen Interactions
MH  - Oxidation-Reduction
MH  - *Plant Physiological Phenomena
MH  - Plastoquinone/*metabolism
MH  - Superoxide Dismutase/metabolism
OTO - NOTNLM
OT  - Antioxidative enzymes
OT  - Botrytis cinerea
OT  - C(3)
OT  - CAM
OT  - DBMIB
OT  - DCMU
OT  - Mesembryanthemum crystallinum
EDAT- 2015/08/12 06:00
MHDA- 2016/09/03 06:00
CRDT- 2015/08/12 06:00
PHST- 2015/05/22 00:00 [received]
PHST- 2015/07/24 00:00 [revised]
PHST- 2015/07/27 00:00 [accepted]
PHST- 2015/08/12 06:00 [entrez]
PHST- 2015/08/12 06:00 [pubmed]
PHST- 2016/09/03 06:00 [medline]
AID - S0981-9428(15)30074-7 [pii]
AID - 10.1016/j.plaphy.2015.07.028 [doi]
PST - ppublish
SO  - Plant Physiol Biochem. 2015 Nov;96:163-70. doi: 10.1016/j.plaphy.2015.07.028. 
      Epub 2015 Jul 30.