PMID- 33932787
OWN - NLM
STAT- MEDLINE
DCOM- 20210525
LR  - 20210525
IS  - 1873-3700 (Electronic)
IS  - 0031-9422 (Linking)
VI  - 187
DP  - 2021 Jul
TI  - Tissue specificity of (E)-beta-farnesene and germacrene D accumulation in pyrethrum 
      flowers.
PG  - 112768
LID - S0031-9422(21)00117-5 [pii]
LID - 10.1016/j.phytochem.2021.112768 [doi]
AB  - Plant defensive mimicry based on the aphid alarm pheromone (E)-beta-farnesene (EbetaF) 
      was previously shown to operate in Tanacetum cinerariifolium (Asteraceae) 
      flowers. Germacrene D (GD), is another dominant volatile of T. cinerariifolium 
      flowers and may modulate both defense and pollination. Here, we find that the 
      increase in GD/EbetaF ratio at later developmental stages is correlated with the 
      tissue distribution in the flower head: the total content of EbetaF and GD is 
      similar, but GD accumulates comparatively more in the upper disk florets. 
      Naphthol and N, N-dimethyl-p-phenylenediamine dihydrochloride (NADI)-stained 
      purple ducts containing EbetaF and GD, were observed in the five petal lips of the 
      corolla and two-lobed stigma of disk florets. By contrast in the peduncle, EbetaF 
      accounts for nearly 80% of total terpenes, compared to 5% for GD. EbetaF is 
      accumulated inside inner cortex cells and parenchyma cells of the pith in young 
      peduncle. This is followed by the formation of terpene-filled axial secretory 
      cavities parallel to the vascular bundles. In conclusion, the observed 
      developmental and diurnal emissions of different EbetaF/GD ratios appear to be 
      regulated by their tissue distribution.
CI  - Copyright (c) 2021 Elsevier Ltd. All rights reserved.
FAU - Li, Jinjin
AU  - Li J
AD  - Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong 
      Agricultural University, Wuhan, 430070, China.
FAU - Hu, Hao
AU  - Hu H
AD  - Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong 
      Agricultural University, Wuhan, 430070, China.
FAU - Chen, Yu
AU  - Chen Y
AD  - Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong 
      Agricultural University, Wuhan, 430070, China.
FAU - Xie, Jing
AU  - Xie J
AD  - Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong 
      Agricultural University, Wuhan, 430070, China.
FAU - Li, Jiawen
AU  - Li J
AD  - Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong 
      Agricultural University, Wuhan, 430070, China.
FAU - Zeng, Tuo
AU  - Zeng T
AD  - Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong 
      Agricultural University, Wuhan, 430070, China.
FAU - Wang, Manqun
AU  - Wang M
AD  - Hubei Insect Resources Utilization and Sustainable Pest Management Key 
      Laboratory, College of Plant Science and Technology, Huazhong Agricultural 
      University, Wuhan, 430070, China.
FAU - Luo, Jing
AU  - Luo J
AD  - Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong 
      Agricultural University, Wuhan, 430070, China.
FAU - Zheng, Riru
AU  - Zheng R
AD  - Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong 
      Agricultural University, Wuhan, 430070, China.
FAU - Jongsma, Maarten A
AU  - Jongsma MA
AD  - Business Unit Bioscience, Wageningen University and Research, Droevendaalsesteeg 
      1, 6708, PB Wageningen, the Netherlands. Electronic address: 
      maarten.jongsma@wur.nl.
FAU - Wang, Caiyun
AU  - Wang C
AD  - Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong 
      Agricultural University, Wuhan, 430070, China. Electronic address: 
      wangcy@mail.hzau.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20210428
PL  - England
TA  - Phytochemistry
JT  - Phytochemistry
JID - 0151434
RN  - 0 (Sesquiterpenes)
RN  - 0 (Sesquiterpenes, Germacrane)
RN  - 18794-84-8 (beta-farnesene)
RN  - V2I9ATG34E (germacrene D)
SB  - IM
MH  - Animals
MH  - *Aphids
MH  - *Chrysanthemum cinerariifolium
MH  - Flowers
MH  - Organ Specificity
MH  - *Sesquiterpenes
MH  - Sesquiterpenes, Germacrane
OTO - NOTNLM
OT  - (E)-beta-farnesene
OT  - Asteraceae
OT  - Germacrene D
OT  - NADI staining
OT  - Pyrethrum
OT  - Secretory duct
OT  - Tanacetum cinerariifolium
OT  - Terpenes
EDAT- 2021/05/02 06:00
MHDA- 2021/05/26 06:00
CRDT- 2021/05/01 20:20
PHST- 2021/01/10 00:00 [received]
PHST- 2021/03/21 00:00 [revised]
PHST- 2021/04/04 00:00 [accepted]
PHST- 2021/05/02 06:00 [pubmed]
PHST- 2021/05/26 06:00 [medline]
PHST- 2021/05/01 20:20 [entrez]
AID - S0031-9422(21)00117-5 [pii]
AID - 10.1016/j.phytochem.2021.112768 [doi]
PST - ppublish
SO  - Phytochemistry. 2021 Jul;187:112768. doi: 10.1016/j.phytochem.2021.112768. Epub 
      2021 Apr 28.