Literature DB >> 11219805

Investigation of avenacin-deficient mutants of Avena strigosa.

M R Trojanowska1, A E Osbourn, M J Daniels, D R Threlfall.   

Abstract

The biosynthesis of cyclic triterpenoids in ten saponin-deficient (sad) mutant varieties of the diploid oat Avena strigosa is reported. Two mutants were found to be deficient in 2,3-oxidosqualene:beta-amyrin cyclase (OSbetaAC) (EC 5.4.99) and thus unable to produce the beta-amyrin necessary for the production of avenacins. The other mutants studied had post beta-amyrin lesions. 2,3-Oxidosqualene:cycloartenol cyclase (OSCC) (EC 5.4.99.8) needed for sterol formation was present in all ten mutants.

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Year:  2001        PMID： 11219805     DOI： 10.1016/s0031-9422(00)00399-x

Source DB:  PubMed          Journal:  Phytochemistry        ISSN： 0031-9422            Impact factor:   4.072


  6 in total

Review 1.  Dissecting plant secondary metabolism - constitutive chemical defences in cereals.

Authors:  Anne E Osbourn; Xiaoquan Qi; Belinda Townsend; Bo Qin
Journal:  New Phytol       Date:  2003-07       Impact factor: 10.151

2.  Cloning of a cDNA probably encoding oxidosqualene cyclase associated with asiaticoside biosynthesis from Centella asiatica (L.) Urban.

Authors:  Ok Tae Kim; Min Young Kim; Sun Mi Huh; Dong Gyu Bai; Jun Cheul Ahn; Baik Hwang
Journal:  Plant Cell Rep       Date:  2005-04-15       Impact factor: 4.570

3.  A different function for a member of an ancient and highly conserved cytochrome P450 family: from essential sterols to plant defense.

Authors:  Xiaoquan Qi; Saleha Bakht; Bo Qin; Mike Leggett; Andrew Hemmings; Fred Mellon; John Eagles; Daniele Werck-Reichhart; Hubert Schaller; Agnes Lesot; Rachel Melton; Anne Osbourn
Journal:  Proc Natl Acad Sci U S A       Date:  2006-11-21       Impact factor: 11.205

4.  A new class of oxidosqualene cyclases directs synthesis of antimicrobial phytoprotectants in monocots.

Authors:  K Haralampidis; G Bryan; X Qi; K Papadopoulou; S Bakht; R Melton; A Osbourn
Journal:  Proc Natl Acad Sci U S A       Date:  2001-10-23       Impact factor: 11.205

5.  A gene cluster for secondary metabolism in oat: implications for the evolution of metabolic diversity in plants.

Authors:  X Qi; S Bakht; M Leggett; C Maxwell; R Melton; A Osbourn
Journal:  Proc Natl Acad Sci U S A       Date:  2004-05-17       Impact factor: 11.205

6.  Multi-tissue integration of transcriptomic and specialized metabolite profiling provides tools for assessing the common bean (Phaseolus vulgaris) metabolome.

Authors:  Leonardo Perez de Souza; Federico Scossa; Sebastian Proost; Elena Bitocchi; Roberto Papa; Takayuki Tohge; Alisdair R Fernie
Journal:  Plant J       Date:  2019-01-15       Impact factor: 6.417
  6 in total

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