Plant Physiology Preview
Published on September 23, 2005; 10.1104/pp.105.061382
Received February 18, 2005
Returned for revision April 3, 2005
Accepted June 26, 2005
The Strigolactone Germination Stimulants of the Plant-Parasitic Striga and Orobanche spp. Are Derived from the Carotenoid Pathway
Radoslava Matusova , Kumkum Rani , Francel W.A. Verstappen , Maurice C.R. Franssen , Michael H. Beale , and Harro J. Bouwmeester *
Plant Research International, 6700 AA Wageningen, The Netherlands; Institute of Plant Genetics and Biotechnology, Slovak Academy of Sciences, Nitra, Slovakia
Plant Research International, 6700 AA Wageningen, The Netherlands
Laboratory of Organic Chemistry, Wageningen University, 6703 HB Wageningen, The Netherlands
Rothamsted Research, Harpenden, Hertfordshire, AL5 2JQ, United Kingdom
* Corresponding author; email: harro.bouwmeester{at}wur.nl.
The seeds of parasitic plants of the genera Striga and Orobanche will only germinate after induction by a chemical signal exuded from the roots of their host. Up to now, several of these germination stimulants have been isolated and identified in the root exudates of a series of host plants of both Orobanche and Striga spp. In most cases, the compounds were shown to be isoprenoid and belong to one chemical class, collectively called the strigolactones, and suggested by many authors to be sesquiterpene lactones. However, this classification was never proven; hence, the biosynthetic pathways of the germination stimulants are unknown. We have used carotenoid mutants of maize (Zea mays) and inhibitors of isoprenoid pathways on maize, cowpea (Vigna unguiculata), and sorghum (Sorghum bicolor) and assessed the effects on the root exudate-induced germination of Striga hermonthica and Orobanche crenata. Here, we show that for these three host and two parasitic plant species, the strigolactone germination stimulants are derived from the carotenoid pathway. Furthermore, we hypothesize how the germination stimulants are formed. We also discuss this finding as an explanation for some phenomena that have been observed for the host-parasitic plant interaction, such as the effect of mycorrhiza on S. hermonthica infestation.
This article has been cited by other articles:
|
|
|
|
 
H. Lin, R. Wang, Q. Qian, M. Yan, X. Meng, Z. Fu, C. Yan, B. Jiang, Z. Su, J. Li, et al.
DWARF27, an Iron-Containing Protein Required for the Biosynthesis of Strigolactones, Regulates Rice Tiller Bud Outgrowth
PLANT CELL,
May 1, 2009;
21(5):
1512 - 1525.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
P. B. Brewer, E. A. Dun, B. J. Ferguson, C. Rameau, and C. A. Beveridge
Strigolactone Acts Downstream of Auxin to Regulate Bud Outgrowth in Pea and Arabidopsis
Plant Physiology,
May 1, 2009;
150(1):
482 - 493.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
B. J. Ferguson and C. A. Beveridge
Roles for Auxin, Cytokinin, and Strigolactone in Regulating Shoot Branching
Plant Physiology,
April 1, 2009;
149(4):
1929 - 1944.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
M. J. Sergeant, J.-J. Li, C. Fox, N. Brookbank, D. Rea, T. D. H. Bugg, and A. J. Thompson
Selective Inhibition of Carotenoid Cleavage Dioxygenases: PHENOTYPIC EFFECTS ON SHOOT BRANCHING
J. Biol. Chem.,
February 20, 2009;
284(8):
5257 - 5264.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
M. Fernandez-Aparicio, F. Flores, and D. Rubiales
Recognition of root exudates by seeds of broomrape (Orobanche and Phelipanche) species
Ann. Bot.,
February 1, 2009;
103(3):
423 - 431.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
C. I. Cazzonelli, A. J. Cuttriss, S. B. Cossetto, W. Pye, P. Crisp, J. Whelan, E. J. Finnegan, C. Turnbull, and B. J. Pogson
Regulation of Carotenoid Composition and Shoot Branching in Arabidopsis by a Chromatin Modifying Histone Methyltransferase, SDG8
PLANT CELL,
January 1, 2009;
21(1):
39 - 53.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
P. McSteen
Hormonal Regulation of Branching in Grasses
Plant Physiology,
January 1, 2009;
149(1):
46 - 55.
[Full Text]
[PDF]
|
|
|
|
|
|
|
D. S. Floss, W. Schliemann, J. Schmidt, D. Strack, and M. H. Walter
RNA Interference-Mediated Repression of MtCCD1 in Mycorrhizal Roots of Medicago truncatula Causes Accumulation of C27 Apocarotenoids, Shedding Light on the Functional Role of CCD1
Plant Physiology,
November 1, 2008;
148(3):
1267 - 1282.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
J. T. Vogel, B.-C. Tan, D. R. McCarty, and H. J. Klee
The Carotenoid Cleavage Dioxygenase 1 Enzyme Has Broad Substrate Specificity, Cleaving Multiple Carotenoids at Two Different Bond Positions
J. Biol. Chem.,
April 25, 2008;
283(17):
11364 - 11373.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
F. Li, R. Vallabhaneni, and E. T. Wurtzel
PSY3, a New Member of the Phytoene Synthase Gene Family Conserved in the Poaceae and Regulator of Abiotic Stress-Induced Root Carotenogenesis
Plant Physiology,
March 1, 2008;
146(3):
1333 - 1345.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
A. Gianinetti and P. Vernieri
On the role of abscisic acid in seed dormancy of red rice
J. Exp. Bot.,
September 26, 2007;
(2007)
erm198v1.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
F. Li, C. Murillo, and E. T. Wurtzel
Maize Y9 Encodes a Product Essential for 15-cis-{zeta}-Carotene Isomerization
Plant Physiology,
June 1, 2007;
144(2):
1181 - 1189.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
K. AKIYAMA and H. HAYASHI
Strigolactones: Chemical Signals for Fungal Symbionts and Parasitic Weeds in Plant Roots
Ann. Bot.,
June 1, 2006;
97(6):
925 - 931.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
