PMID- 22474183
OWN - NLM
STAT- MEDLINE
DCOM- 20120924
LR  - 20240318
IS  - 1532-298X (Electronic)
IS  - 1040-4651 (Print)
IS  - 1040-4651 (Linking)
VI  - 24
IP  - 4
DP  - 2012 Apr
TI  - Root-derived oxylipins promote green peach aphid performance on Arabidopsis 
      foliage.
PG  - 1643-53
LID - 10.1105/tpc.111.094110 [doi]
AB  - Oxylipins function as signaling molecules in plant growth and development and 
      contribute to defense against stress. Here, we show that oxylipins also 
      facilitate infestation of Arabidopsis thaliana shoots by the phloem sap-consuming 
      green peach aphid (GPA; Myzus persicae), an agronomically important insect pest. 
      GPAs had difficulty feeding from sieve elements and tapping into the xylem of 
      lipoxygenase5 (lox5) mutant plants defective in LOX activity. These defects in 
      GPA performance in the lox5 mutant were accompanied by reduced water content of 
      GPAs and a smaller population size of GPAs in the mutant compared with the 
      wild-type plant. LOX5 expression was rapidly induced in roots in response to 
      infestation of shoots by GPAs. In parallel, levels of LOX5-derived oxylipins 
      increased in roots and in petiole exudates of GPA-colonized plants. Application 
      of 9-hydroxyoctadecadienoic acid (an oxylipin produced by the LOX5 enzyme) to 
      roots restored water content and GPA population size in lox5 plants, thus 
      confirming that a LOX5-derived oxylipin promotes infestation of the foliage by 
      GPAs. Micrografting experiments demonstrated that GPA performance on foliage is 
      influenced by the LOX5 genotype in roots, thus demonstrating the importance of 
      root-derived oxylipins in colonization of aboveground organs by an insect.
FAU - Nalam, Vamsi J
AU  - Nalam VJ
AD  - Department of Biological Sciences and Center for Plant Lipid Research, University 
      of North Texas, Denton, Texas 76203, USA.
FAU - Keeretaweep, Jantana
AU  - Keeretaweep J
FAU - Sarowar, Sujon
AU  - Sarowar S
FAU - Shah, Jyoti
AU  - Shah J
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Research Support, U.S. Gov't, Non-P.H.S.
DEP - 20120403
PL  - England
TA  - Plant Cell
JT  - The Plant cell
JID - 9208688
RN  - 0 (Oxylipins)
RN  - 0 (Plant Exudates)
RN  - EC 1.13.11.34 (Arachidonate 5-Lipoxygenase)
SB  - IM
MH  - Animals
MH  - Aphids/growth & development/*physiology
MH  - Arabidopsis/*drug effects/enzymology/*parasitology
MH  - Arachidonate 5-Lipoxygenase/metabolism
MH  - Fertility/drug effects
MH  - Models, Biological
MH  - Mutation/genetics
MH  - Oxylipins/*pharmacology
MH  - Phenotype
MH  - Plant Exudates/metabolism
MH  - Plant Leaves/drug effects/*parasitology
MH  - Plant Roots/drug effects/*metabolism/parasitology
MH  - Plant Shoots/drug effects/parasitology
MH  - Population Density
MH  - Prunus/*parasitology
MH  - Time Factors
MH  - Xylem/drug effects/parasitology
PMC - PMC3398569
EDAT- 2012/04/05 06:00
MHDA- 2012/09/25 06:00
PMCR- 2013/04/01
CRDT- 2012/04/05 06:00
PHST- 2012/04/05 06:00 [entrez]
PHST- 2012/04/05 06:00 [pubmed]
PHST- 2012/09/25 06:00 [medline]
PHST- 2013/04/01 00:00 [pmc-release]
AID - tpc.111.094110 [pii]
AID - 094110 [pii]
AID - 10.1105/tpc.111.094110 [doi]
PST - ppublish
SO  - Plant Cell. 2012 Apr;24(4):1643-53. doi: 10.1105/tpc.111.094110. Epub 2012 Apr 3.