PMID- 37497606
OWN - NLM
STAT- MEDLINE
DCOM- 20230907
LR  - 20231023
IS  - 1470-8728 (Electronic)
IS  - 0264-6021 (Print)
IS  - 0264-6021 (Linking)
VI  - 480
IP  - 17
DP  - 2023 Sep 13
TI  - Elevated CO2 alters photosynthesis, growth and susceptibility to powdery mildew 
      of oak seedlings.
PG  - 1429-1443
LID - 10.1042/BCJ20230002 [doi]
AB  - Elevated CO2 (eCO2) is a determinant factor of climate change and is known to 
      alter plant processes such as physiology, growth and resistance to pathogens. 
      Quercus robur, a tree species integrated in most forest regeneration strategies, 
      shows high vulnerability to powdery mildew (PM) disease at the seedling stage. PM 
      is present in most oak forests and it is considered a bottleneck for oak woodland 
      regeneration. Our study aims to decipher the effect of eCO2 on plant responses to 
      PM. Oak seedlings were grown in controlled environment at ambient (aCO2, 
       approximately 400 ppm) and eCO2 ( approximately 1000 ppm), and infected with Erysiphe alphitoides, the 
      causal agent of oak PM. Plant growth, physiological parameters and disease 
      progression were monitored. In addition, to evaluate the effect of eCO2 on 
      induced resistance (IR), these parameters were assessed after treatments with IR 
      elicitor beta-aminobutyric acid (BABA). Our results show that eCO2 increases 
      photosynthetic rates and aerial growth but in contrast, reduces root length. 
      Importantly, under eCO2 seedlings were more susceptible to PM. Treatments with 
      BABA protected seedlings against PM and this protection was maintained under 
      eCO2. Moreover, irrespectively of the concentration of CO2, BABA did not 
      significantly change aerial growth but resulted in longer radicular systems, thus 
      mitigating the effect of eCO2 in root shortening. Our results demonstrate the 
      impact of eCO2 in plant physiology, growth and defence, and warrant further 
      biomolecular studies to unravel the mechanisms by which eCO2 increases oak 
      seedling susceptibility to PM.
CI  - (c) 2023 The Author(s).
FAU - Sanchez-Lucas, Rosa
AU  - Sanchez-Lucas R
AD  - Birmingham Institute of Forest Research, School of Biosciences, University of 
      Birmingham, Birmingham B15 2TT, U.K.
FAU - Mayoral, Carolina
AU  - Mayoral C
AD  - Birmingham Institute of Forest Research, School of Biosciences, University of 
      Birmingham, Birmingham B15 2TT, U.K.
FAU - Raw, Mark
AU  - Raw M
AD  - Birmingham Institute of Forest Research, School of Biosciences, University of 
      Birmingham, Birmingham B15 2TT, U.K.
FAU - Mousouraki, Maria-Anna
AU  - Mousouraki MA
AD  - Birmingham Institute of Forest Research, School of Biosciences, University of 
      Birmingham, Birmingham B15 2TT, U.K.
AD  - School of Life Sciences, University of Warwick, Gibber Hill Campus, Coventry CV4 
      7AL, U.K.
FAU - Luna, Estrella
AU  - Luna E
AUID- ORCID: 0000-0002-7299-5364
AD  - Birmingham Institute of Forest Research, School of Biosciences, University of 
      Birmingham, Birmingham B15 2TT, U.K.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Biochem J
JT  - The Biochemical journal
JID - 2984726R
RN  - 142M471B3J (Carbon Dioxide)
SB  - IM
MH  - *Seedlings
MH  - Carbon Dioxide/pharmacology
MH  - *Quercus/physiology
MH  - Photosynthesis
PMC - PMC10586781
OTO - NOTNLM
OT  - Quercus robur
OT  - carbon dioxide
OT  - climate change
OT  - fungi
OT  - plant protection
OT  - beta-aminobutyric acid
COIS- The authors declare that there are no competing interests associated with the 
      manuscript.
EDAT- 2023/07/27 06:43
MHDA- 2023/09/07 06:43
PMCR- 2023/09/06
CRDT- 2023/07/27 04:43
PHST- 2023/01/07 00:00 [received]
PHST- 2023/07/18 00:00 [revised]
PHST- 2023/07/27 00:00 [accepted]
PHST- 2023/09/07 06:43 [medline]
PHST- 2023/07/27 06:43 [pubmed]
PHST- 2023/07/27 04:43 [entrez]
PHST- 2023/09/06 00:00 [pmc-release]
AID - 233321 [pii]
AID - BCJ-480-1429 [pii]
AID - 10.1042/BCJ20230002 [doi]
PST - ppublish
SO  - Biochem J. 2023 Sep 13;480(17):1429-1443. doi: 10.1042/BCJ20230002.