Subtilisin inhibitor like protein 'LPI-1' from leaves of pigeonpea (, cv. BSMR 736) exhibits inhibition against gut proteinases.

is an orthodox rival of many crop plants affecting agricultural economy. Plant leaves found to accumulate proteinase inhibitors, although this insect pest chooses leaves for laying eggs. Plant defense response at this juncture is not fully explored.

A bifunctional α-amylase/trypsin inhibitor from pigeonpea seeds: Purification, biochemical characterization and its bio-efficacy against Helicoverpa armigera.

This paper evaluates α-amylase inhibitor (α-AI) mediated defense of pigeonpea against Helicoverpa armigera. A bifunctional α-amylase/trypsin inhibitor was purified from the seeds of pigeonpea by native liquid phase isoelectric focusing (N-LP-IEF), affinity chromatography and preparative electrophoresis. Its in-vivo and in-vitro interaction with midgut amylases of H.