Confirmation and quantification of strigolactones, germination stimulants for root parasitic plants Striga and Orobanche, produced by cotton [Gossypium hirsutum]

Confirmation and quantification of strigolactones, germination stimulants for root parasitic plants Striga and Orobanche, produced by cotton [Gossypium hirsutum]

The germination stimulants for root parasitic plants Striga and Orobanche produced by cotton (Gossypium hirsutum L.) were examined in detail. Seeds of cotton were germinated and grown on glass wool wetted with sterile distilled water In sterile filter units. The root exudate was collected daily and...

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Bibliographic Details
Published in:Bioscience, biotechnology, and biochemistry Vol. 69; no. 1; pp. 98 - 102
Main Authors: Sato, D. (Utsunomiya Univ. (Japan)), Awad, A.A, Takeuchi, Y, Yoneyama, K
Format: Journal Article
Language:English
Published: Tokyo Japan Society for Bioscience, Biotechnology, and Agrochemistry 01-01-2005
Japan Society for Bioscience Biotechnology and Agrochemistry
Oxford University Press
Subjects:
Biological and medical sciences
CHEMICAL STRUCTURE
Fundamental and applied biological sciences. Psychology
GERMINATION
germination stimulant
Gossypium - metabolism
Gossypium - parasitology
GOSSYPIUM HIRSUTUM
LACTONES
Lactones - metabolism
MASS SPECTROMETRY
Molecular Structure
OROBANCHE
Orobanche - physiology
PARASITIC PLANTS
Plant Roots - metabolism
QUANTITATIVE ANALYSIS
root parasitic plant
STIMULANTS
STRIGA
Striga - physiology
strigol
strigyl acetate
Time Factors
Orobanche
Root
Germination
Parasite
Acetate
germination stimulant
root parasitic plant
strigyl acetate
Dicotyledones
Angiospermae
Orobanchaceae
Spermatophyta
strigol
Quantitative analysis
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Summary:The germination stimulants for root parasitic plants Striga and Orobanche produced by cotton (Gossypium hirsutum L.) were examined in detail. Seeds of cotton were germinated and grown on glass wool wetted with sterile distilled water In sterile filter units. The root exudate was collected daily and extracted with ethyl acetate. Each of these ethyl acetate extracts was analyzed directly by high-performance liquid chromatography linked with tandem mass spectrometry (LC/ MS/MS). The results demonstrate that cotton roots exuded strigol and strigyl acetate, but no other known stngolactones such as orohanchol and alectrol. The production of strigol was detected even In the root exudate collected during the first 24 h of incubation and reached a maxImum 5-7 days bier. The average exudation o( strigol and strigyl acetate during the incubation period was ca. 15 and 2 pg/plant/day, respectively, indicating that strigol mainly contributed to germination stimulation by the cotton root exudate.
Bibliography:2005005238
F60
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0916-8451
1347-6947
DOI:10.1271/bbb.69.98