Abstract
Plants use floral and fruit volatiles as chemical cues to interact with their environment by attracting pollinators and seed dispersers, thus ensuring plant reproductive success. These volatiles also have a significant economic value as they contribute directly to the quality, and indirectly to the yield, of crops. The scent of flowers and the aroma of fruits are composed of complex mixtures of tens or sometimes hundreds of volatile compounds, many of which are found in both flowers and fruits. Arising from diverse biochemical pathways, floral and fruit volatiles can be divided into four major classes according to their metabolic origin: terpenoids, phenylpropanoids/benzenoids, fatty acid derivatives and amino acid derivatives. Recent discoveries of genes and enzymes responsible for the formation of volatile compounds have facilitated the investigation of the regulation of the biosynthesis of flower and fruit volatiles. Our growing understanding of the plant volatile network, together with pioneering attempts for fragrance modification, provide a platform for future metabolic engineering of floral scent and fruit aroma for plant improvement and human enjoyment.
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Abbreviations
- AADC:
-
aromatic amino acid decarboxylase
- AAT:
-
alcohol acyltransferase
- ABC:
-
adenosine triphosphate binding cassette
- ADH:
-
alcohol dehydrogenase
- AHCT:
-
anthocyanin O-hydroxycinnamoyltransferase
- AOS:
-
allene oxide synthase
- BA:
-
benzoic acid
- BAMT:
-
benzoic acid carboxyl methyl transferase
- BEAT:
-
acetyl-CoA:benzyl alcohol acetyltransferase
- BPBT:
-
benzyl alcohol/phenylethanol benzoyl transferase
- BSMT:
-
benzoic acid/salicylic acid carboxyl methyltransferase
- CA:
-
cinnamic acid
- CCD:
-
carotenoid cleavage dioxygenase
- CFAT:
-
coniferyl alcohol acyltransferase
- CoA:
-
coenzyme-A
- DAHP:
-
3-deoxy-D-arabino-heptulosonate 7-phosphate
- DAT:
-
deacetylvindoline 4-O-acetyltransferase
- DMAPP:
-
dimethylallyl diphosphate
- EGS:
-
eugenol synthase
- Ery4P:
-
erythrose 4-phosphate
- F6P:
-
fructose 6-phosphate
- FPP:
-
farnesyl diphosphate
- FPPS:
-
farnesyl pyrophosphate synthase
- GA-3P:
-
glyceraldehyde-3-phosphate
- G6P:
-
glucose 6-phosphate
- GC-EAD:
-
gas chromatography coupled with electroantennogram detection
- GES:
-
geraniol synthase
- GGPP:
-
geranylgeranyl pyrophosphate
- GGPPS:
-
GGPP synthase
- GPP:
-
geranyl diphosphate
- GPPS:
-
GPP synthase
- HCBT:
-
anthranilate N-hydroxycinnamoyl/ benzoyltransferase
- HPL:
-
hydroperoxyde lyase
- IDI:
-
isopentenyl diphosphate isomerase
- IGS:
-
isoeugenol synthase
- IGL:
-
indole-3-glycerol phosphate lyase
- Indole-3GP:
-
indole 3-glycerol phosphate
- IPP:
-
isopentenyl diphosphate
- JMT:
-
jasmonic acid carboxyl methyl transferase
- LIS:
-
(S)-linalool synthase
- LOX:
-
lipoxygenase
- LTP:
-
lipid transfer proteins
- MEP:
-
methyl-erythritol-phosphate
- MVA:
-
mevalonic acid
- PAAS:
-
phenylacetaldehyde synthase
- PAL:
-
L-phenylalanine ammonia-lyase
- Pap1:
-
production of anthocyanin pigment 1
- PEP:
-
phosphoenolpyruvate
- Phe:
-
L-phenylalanine
- RhAAT:
-
rose alcohol acyltransferase
- SAAT:
-
strawberry alcohol acyltransferase
- TPS:
-
terpene synthase
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Acknowledgements
Work in ND’s lab is supported by the U.S. National Science Foundation (grant numbers MCB-0615700 and MCB-0331333), the U.S. Department of Agriculture (grant numbers 2003–35318–13619 and 2005–35318–16207) and the Fred Gloeckner Foundation, Inc. Work in FNZ’s lab is supported by the College of Agricultural and Environmental Sciences at UC Davis and the California Melon Research Board.
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Negre-Zakharov, F., Long, M.C., Dudareva, N. (2009). Floral Scents and Fruit Aromas Inspired by Nature. In: Osbourn, A., Lanzotti, V. (eds) Plant-derived Natural Products. Springer, New York, NY. https://doi.org/10.1007/978-0-387-85498-4_19
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