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פותח על ידי קלירמאש פתרונות בע"מ -
Emission of floral volatiles is facilitated by cell-wall non-specific lipid transfer proteins
Year:
2023
Source of publication :
Nature Communications
Authors :
מעוז, איתי
;
.
Volume :
Co-Authors:

Pan Liao 
Itay Maoz 
Meng-Ling Shih 
Ji Hee Lee 
Xing-Qi Huang
John A Morgan
Natalia Dudareva

Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
Abstract:

For volatile organic compounds (VOCs) to be released from the plant cell into the atmosphere, they have to cross the plasma membrane, the cell wall, and the cuticle. However, how these hydrophobic compounds cross the hydrophilic cell wall is largely unknown. Using biochemical and reverse-genetic approaches combined with mathematical simulation, we show that cell-wall localized non-specific lipid transfer proteins (nsLTPs) facilitate VOC emission. Out of three highly expressed nsLTPs in petunia petals, which emit high levels of phenylpropanoid/benzenoid compounds, only PhnsLTP3 contributes to the VOC export across the cell wall to the cuticle. A decrease in PhnsLTP3 expression reduces volatile emission and leads to VOC redistribution with less VOCs reaching the cuticle without affecting their total pools. This intracellular build-up of VOCs lowers their biosynthesis by feedback downregulation of phenylalanine precursor supply to prevent self-intoxication. Overall, these results demonstrate that nsLTPs are intrinsic members of the VOC emission network, which facilitate VOC diffusion across the cell wall.

Note:
Related Files :
cell wall
lipid transfer proteins
Volatile organic compounds (VOCs)
עוד תגיות
תוכן קשור
More details
DOI :
10.1038/s41467-023-36027-9
Article number:
0
Affiliations:
Database:
PubMed
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
63299
Last updated date:
23/01/2023 17:32
Creation date:
23/01/2023 17:31
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Scientific Publication
Emission of floral volatiles is facilitated by cell-wall non-specific lipid transfer proteins

Pan Liao 
Itay Maoz 
Meng-Ling Shih 
Ji Hee Lee 
Xing-Qi Huang
John A Morgan
Natalia Dudareva

Emission of floral volatiles is facilitated by cell-wall non-specific lipid transfer proteins

For volatile organic compounds (VOCs) to be released from the plant cell into the atmosphere, they have to cross the plasma membrane, the cell wall, and the cuticle. However, how these hydrophobic compounds cross the hydrophilic cell wall is largely unknown. Using biochemical and reverse-genetic approaches combined with mathematical simulation, we show that cell-wall localized non-specific lipid transfer proteins (nsLTPs) facilitate VOC emission. Out of three highly expressed nsLTPs in petunia petals, which emit high levels of phenylpropanoid/benzenoid compounds, only PhnsLTP3 contributes to the VOC export across the cell wall to the cuticle. A decrease in PhnsLTP3 expression reduces volatile emission and leads to VOC redistribution with less VOCs reaching the cuticle without affecting their total pools. This intracellular build-up of VOCs lowers their biosynthesis by feedback downregulation of phenylalanine precursor supply to prevent self-intoxication. Overall, these results demonstrate that nsLTPs are intrinsic members of the VOC emission network, which facilitate VOC diffusion across the cell wall.

Scientific Publication
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