Alterations in sorghum lipidome in response to sugarcane aphid infestation

Monday, November 14, 2022

8:00 AM – 8:12 AM PT

Location: Vancouver Convention Centre, Meeting Room 212

Presenting Author(s)

HP

Heena Puri

Graduate Research assistant
University of Nebraska
Lincoln, Nebraska

Co-Author(s)

Sajjan Grover

Scientist-II
Bayer Crop Science
Manchester, Missouri
MR

Mary Roth

Kansas State University
Manhattan, Kansas
RW

Ruth Welti

Kansas State University
Manhattan, Kansas
JL

Joe Louis

Professor
University of Nebraska
Lincoln, Nebraska

Lipids are major constituents of the plant cell membrane and are involved in energy metabolism. They also play an important role in inducing plant defenses or mitigating stresses either biotic (insect or pathogen) or abiotic (temperature, heat, drought) stress. Sugarcane aphid (SCA; Melanaphis sacchari Zehntner) is a recently reported pest on sorghum in the United States that feeds on phloem tissue, drains nutrients, and inflicts physical damage to plants. We utilized electrospray ionization mass spectrometry (ESI-MS) to compare the lipids of SCA resistant, susceptible, and wild-type sorghum plants in response to SCA feeding. A total of 227 lipids were identified in ESI-MS from SCA-infested or uninfested leaves sampled at early and late timepoints in three sorghum genotypes. The changes in sorghum lipidome before and after SCA feeding will be discussed.