TITLE

Auxin-transport-dependent leaf vein formation

AUTHOR(S)
Donner, Tyler J.; Scarpella, Enrico
PUB. DATE
July 2009
SOURCE
Botany;Jul2009, Vol. 87 Issue 7, p678
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The formation of vein patterns in leaves has captivated biologists, mathematicians, and philosophers. In leaf development, files of vein-forming procambial cells emerge from within a seemingly homogeneous subepidermal tissue through the selection of anatomically inconspicuous preprocambial cells. Although the molecular details underlying the orderly formation of veins in the leaf remain elusive, gradually restricted transport paths of the plant signaling molecule auxin have long been implicated in defining sites of vein differentiation. Several recent advances converge to more precisely define the role of auxin flow at successive stages of vascular development. The picture that emerges is that of vein formation as a self-organizing, reiterative, auxin-transport-dependent process.
ACCESSION #
43831545

 

Related Articles

  • Leaf Anatomy of Some Endemic Crocus L. (Iridaceae) Taxa from the West Anatolia. Erol, Osman; Küçüker, Orhan // International Journal of Botany;2007, Vol. 3 Issue 3, p290 

    Certain anatomical and micromorphological features of six endemic Crocus taxa (C. fleischeri J. Gay, C. gargaricus Herb. subsp. herbertii B. Mathew, C. wattiorum (B. Mathew) B.F. Mathew, C. antalyensis B. F. Mathew, C. olivieri J. Gay subsp. istanbulensis Mathew ve C. candidus Clarke) from the...

  • Plant cell biology: Close encounters. Heinrichs, Arianne // Nature Reviews Molecular Cell Biology;Jul2005, Vol. 6 Issue 7, p516 

    Discusses two studies focusing on the plant hormone auxin. Discovery that the effect of auxin was temperature independent; Expression of the F-box protein TIR1 in two non-auxin-responsive systems.

  • PLANT HORMONES: Pinning down auxin transport. Cooney, Sarah // Nature Reviews Molecular Cell Biology;Nov2001, Vol. 2 Issue 11, p788 

    Discusses research being done on the auxin signaling in plant hormones. Reference to a study by N. Geldner et al., published in the 2001 issue of the journal "Nature"; Details on the transportation of auxin in plants; Effect of an inhibitor called TIBA.

  • fruit drop:. Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects;2003, p176 

    A definition of the term "fruit drop" is presented. It refers to the premature abscission of fruit before it is fully ripe. It is a common process, wherein, in many fruits there are certain peak periods of fruit drop. Auxin sprays have been used to

  • Effects of Day-length and Gibberellic Acid (GA3) on Flowering and Endogenous Hormone Levels in Rhynchostylis gigantea (Lindl.) Ridl. Phengphachanh, B.; Naphrom, D.; Bundithya, W.; Potapohn, N. // Journal of Agricultural Science (1916-9752);Apr2012, Vol. 4 Issue 4, p217 

    Effects of day-length and GA3 on flowering and endogenous hormone levels during flowering process of Rhynchostylis gigantea (Lindl.) Ridl. were studied. Three-year-old plants were grown under natural condition and short-day (10 h of light) combined with GA3 at 0 and 3,000 ppm, for 3 months. The...

  • Think this leaf is big? Take a look at the ones over there.  // New Scientist;1/19/2013, Vol. 217 Issue 2900, p16 

    The article discusses a study by Harvard University researcher Kaare Jensen comparing leaf size in trees to their height, with information on circulation of sugars from the leaves to the trunks and roots.

  • Leaf development in Aralia elata in relation to the partial-shoot concept. Charlton, W. A. // Botany;Feb2009, Vol. 87 Issue 2, p136 

    Aralia elata (Miq.) Seem. has large bipinnate leaves in which the rachis bears pairs of leaflets in the distal region and pairs of rachillae bearing leaflets in the proximal region. A supernumerary leaflet is also inserted on the rachis adjacent to each rachilla. The rachilla and supernumerary...

  • Fractal dimension of the leaf vascular system of three Relbunium species (Rubiaceae). de Araujo Mariath, Jorge Ernesto; dos Santos, Rinaldo Pires; dos Santos, Ricardo Pires // Revista Brasileira de Biociencias;2010, Vol. 8 Issue 1, p30 

    Fractal analysis has been used as a powerful tool to characterize the complexity of plant structures. Tree ramification, root and venation systems are some examples of patterns studied using this geometry, and fractal dimension has quantified and graded the complexity of these structures. In...

  • Effect of Different Hormonal Combinations on Regeneration of Callus of Gomphrena globosa L. Ghaffar, Iram; Ali, Basharat; Hasnain, Shahida // Pakistan Journal of Biological Sciences;2007, Vol. 10 Issue 20, p3708 

    The main aim of this study was to observe the effect of different hormonal combinations on regeneration of callus of Gomphrena globosa L. For this purpose callus was obtained from seeds G. globosa inoculated on MS medium supplemented with 4 mg L-1 2, 4-D and 10% coconut milk. After callus...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics