Floriculture Research Alliance: What we've done

22 Oct 2020

Genetic Transformation of Ornamental Succulents for Disease Resistance

Taylor Schulden, University of Maryland

Taylor Schulden, MSc student from University of Maryland advised by Dr. John Erwin, researches the genetic transformation of ornamental succulents for disease resistance.

21 Oct 2010

Spider mites (Tetranychus urticae) perform poorly on and disperse from plants exposed to methyl jasmonate

Charles L. Rohwer & John E. Erwin (University of Minnesota)

Jasmonates are plant hormones involved in wound and defense responses against herbivorous arthropods. Methyl jasmonate (MeJA) is used experimentally to induce defense responses in plants. Spraying plants with 100 lM MeJA 1 day before infestationcaused mites to disperse within 2 days from treated impatiens [Impatiens wallerana Hook f.,'Super Elfin Pink' (Balsaminaceae)], pansy [Viola x wittrockiana Gams, 'Imperial Beaconsfield'(Violaceae)], and tomato [Solanum lycopersicum L., 'Big Boy' (Solanaceae)] plants. In addition, MeJAapplication reduced mite proliferation rate on impatiens and pansy by 60% (measured 22-34 daysafter infestation). Proteinase inhibitor (PI) assays suggested that MeJA-induced PIs alone were notresponsible for the observed results in pansy and impatiens but may have been a factor in tomato.

Rohwer and Erwin 2010 spider mites methyl jasmonate EEA (298 KB)

Key

You will need Adobe's Reader to view this file. Download the reader for free from Adobe's web site

Your first name		Continent
Your surname		Country
Your email address		State/Province
Which of the following groups best describes your current role in the industry	Grower Consultant Research/Academic/Extension Allied supplier Student
Software use agreement While all care has been used in developing this software, neither its authors nor their employers give any prediction, warranty or assurance in relation to the accuracy of or fitness for any particular purpose, use or application of any information contained in the software. To the full extent permitted by law neither the University of Florida, Michigan State University, the University of Minnesota nor any of its employees shall be liable for any cost (including legal costs), claim, liability, loss, damage, injury or the like, which may be suffered or incurred as a direct or indirect result of the reliance by any person on any information contained in the software. I agree to these terms of use.