​​​​​​​​​​​​​​​​MPMI Editor's Pick

Immunolocalization and Ultrastructure Show Ingestion of Cry Protein Expressed in Glycine max by Heterodera glycines and Its Mode of Action

Great interest exists in developing a transgenic trait that controls the economically important soybean (Glycine max) pest, soybean cyst nematode (SCN, Heterodera glycines), due to its adaptation to native resistance. Soybean plants expressing the Cry14Ab delta-endotoxin from Bacillus thuringiensis have shown promising SCN control in both lab and field tests. In this MPMI Editor's Pick, R. Howard Berg et al. demonstrate that Cry14Ab has a unique mode of action, distinct from native resistance sources like Peking and PI 88788. Using immunogold labeling and electron microscopy, researchers observed Cry14Ab ingestion by SCN, leading to significant midgut damage, which was absent in nematodes feeding on non-Cry14Ab-expressing roots. Read the Editor's Pick to learn more about their findings.
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Interactions

InterConnections: Plant–Microbe Interaction Careers in Government

Careers in plant-microbe interactions span more than research. Suma Chakravarthy is a senior science advisor at the USDA-APHIS-Biotechnology Regulatory Service. She earned her Ph.D. degree in genetics at Delhi University, working in plant biology, and was a postdoctoral researcher in Dr. Greg Martin's lab at the Boyce Thompson Institute. Read how she made her way to her current position and her role at APHIS.

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