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Increasing Leaf Longevity and Disease Resistance by Altering Salicylic Acid Catabolism

Detailed Technology Description
Theinvention provides methods to delay leaf senescence by changing levels of hydroxylase gene expression in plants, resulting in greater crop yield and enhancing disease resistance.
Others
*Abstract

Leaf senescence can be slowed down by changing levels of a plant hydroxylase gene expression, resulting in greater crop yield and enhanced disease resistance.

 

Salicylic acid (SA) is a plant hormone that plays critical roles in plant defense and stress responses, and it induces senescence-associated genes. Cornell researchers discovered a new metabolic enzyme called salicylic acid 3-hydroxylase in plants which regulates leaf longevity and disease resistance by mediating SA catabolism.

 

Proof of concept: Strong data sets obtained from experiments in Arabidopsis demonstrate the effectiveness of (1) silencing the gene to increase disease resistance and (2) enhancing the gene to delay senescence.

 

Potential Applications

  • Cropyield enhancement by controlling leaf senescence
  • Methodof identifying a candidate plant suitable for breeding that displays a delayedsenescence phenotype and or enhanced pathogen resistance.

 

Advantages

  • Increase crop yield in a variety of plants, including soybean, maize, and canola 
  • Improve turf grass management 
  • Improve ornamental plant performance 
  • Increase value in post-harvest 
  • Enhance disease resistance in crops
*Licensing
JeffFearn607-254-4502jcf55@cornell.edu
Country/Region
USA

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