Location: Subtropical Plant Pathology Research
Project Number: 6034-22000-039-49-R
Project Type: Reimbursable
Start Date: May 1, 2014
End Date: Apr 30, 2016
1. To investigate the effect of heat stress on Las, associated prophages and those genes involved in the phage lytic cycle. 2. To monitor healthy and HLB-affected citrus genome-wide response to heat stress. 3. Optimize field thermotherapy to produce a standard operating procedure.
Trees will exposed to heat. For obj. 1, leaves will be collected throughout the thermotherapy treatment. qPCR and RT-PCR will be used to determine if heat stress causes changes in Las phage. For obj. 2, RNA-seq will be used to determine how gene regulation in citrus is altered by heat stress. For obj. 3, a mathematical model will be developed to aid growers in determining the duration of heat treatment needed based on current within tent temperatures. Lastly, integrated approaches using chemicals that may be applied with heat treatment will be investigated.