Document Detail


Rice develop wavy seminal roots in response to light stimulus.
MedLine Citation:
PMID:  21573806     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Rice (Oryza sativa L.) seminal roots are the primary roots to emerge from germinated seeds. Here, we demonstrate that the photomorphology of the seminal roots was diverse among rice varieties, and the light-induced wavy roots were found mostly in indica-type rice varieties. The light-induced wavy morphology in rice seminal roots has been different with curling or coiling roots in some other specific conditions, such as high air humidity or high nitrogen nutrient. The efficiency of light-induced root waving was developmental stage dependent. The wavy root phenotype was caused by asymmetric cell growth around the stele. Using the inhibitors to block auxin polar transport and fatty acid oxygenation, the role of auxin and oxylipins in the morphogenesis of light-induced wavy roots was investigated. Expressions of genes encoded in the enzymes involved in fatty acid oxygenation in light-exposed roots were monitored by reverse transcriptase-polymerase chain reaction. Our results suggested that auxin polar transport was essential for inducing wavy seminal roots by light stimulus. In addition, the ketol oxylipins derived from allene oxide synthase (EC 4.2.1.92)-mediated fatty acid oxygenation function as intracellular signals for triggering the light-induced wavy root phenotype.
Authors:
Shu-Jen Wang; Chia-Hsun Ho; Hsiang-Wen Chen
Related Documents :
21642346 - Effect of light on in vivo urediniospore germination, lesion development and sporulatio...
21633446 - Photoacoustic-guided convergence of light through optically diffusive media.
15523526 - The accuracy of perception of a pinch grip force in older adults.
21568536 - Generation and control of chains of entangled atom-ion pairs with quantum light.
17798276 - Environmental effects of an impact-generated dust cloud: implications for the cretaceou...
23130886 - Same temporal niche, opposite rhythmicity: two closely related bioluminescent insects w...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-5-15
Journal Detail:
Title:  Plant cell reports     Volume:  -     ISSN:  1432-203X     ISO Abbreviation:  -     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-5-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9880970     Medline TA:  Plant Cell Rep     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Agronomy, National Taiwan University, No. 1, Section 4, Roosevelt Rd., Taipei, 106, Taiwan, shujen@ntu.edu.tw.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

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


Previous Document:  DNA damage in the presence of chemical genotoxic agents induce acetylation of H3K56 and H4K16 but no...
Next Document:  Long-term clinical and radiological outcomes following stand-alone PLIF surgery using expandable cyl...