Document Detail

Differences among auxin treatments on haploid production in durum wheat x maize crosses.
MedLine Citation:
PMID:  15048585     Owner:  NLM     Status:  MEDLINE    
Three doubled haploid lines of durum wheat [Triticum turgidum ssp. durum (Desf.) Husn.] were crossed with maize (Zea mays L.), and five hormone treatments were applied to test their effect on the production of caryopses, embryos and haploid plants. The auxin treatments consisted of 100 mg/l 2,4-dichlorophenoxyacetic acid (2,4-D), 5 mg/l or 50 mg/l dicamba and two combination mixtures of 95/5 mg/l and 50/50 mg/l 2,4-D plus dicamba, respectively. Hormones were added to the culture medium of the detached tillers. Differences were not observed among the four hormone treatments that contained dicamba, nevertheless, these treatments significantly increased the production of caryopses, embryos and haploid plants. On average, 8.9 caryopses, 2.6 embryos and 1.3 haploid plants per spike were obtained following the treatment with 100 mg/l 2,4-D, and 15.0 caryopses, 6.0 embryos and 3.0 haploid plants per spike were obtained following the various treatments with dicamba. We propose the application of dicamba alone, or dicamba plus 2,4-D, as a means for improving the yield of haploid plants of durum wheat through crosses with maize.
C García-Llamas; A Martín; J Ballesteros
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2004-03-27
Journal Detail:
Title:  Plant cell reports     Volume:  23     ISSN:  0721-7714     ISO Abbreviation:  Plant Cell Rep.     Publication Date:  2004 Aug 
Date Detail:
Created Date:  2004-08-04     Completed Date:  2004-10-27     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9880970     Medline TA:  Plant Cell Rep     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  46-9     Citation Subset:  IM    
Instituto de Agricultura Sostenible, Consejo Superior de Investigaciones Científicas, Apdo 4084, 14080, Cordoba, Spain.
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MeSH Terms
2,4-Dichlorophenoxyacetic Acid / pharmacology
Chimera / genetics,  growth & development*
Dicamba / pharmacology
Dose-Response Relationship, Drug
Drug Synergism
Gene Expression Regulation, Plant / drug effects,  genetics
Indoleacetic Acids / pharmacology*
Plants, Genetically Modified / drug effects*,  genetics,  growth & development
Seeds / drug effects,  genetics,  growth & development
Triticum / drug effects*,  genetics,  growth & development
Zea mays / drug effects*,  genetics,  growth & development
Reg. No./Substance:
0/Indoleacetic Acids; 1918-00-9/Dicamba; 94-75-7/2,4-Dichlorophenoxyacetic Acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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