A leaf-specific 27 kDa protein of potato Kunitz-type proteinase inhibitor is induced in response to abscisic acid, ethylene, methyl jasmonate, and water deficit.
The 22 kDa Kunitz-type potato proteinase inhibitor (22 kDa KPPI) was induced in tubers. However, the 27 kDa protein, which is immunologically related to the 22 kDa KPPI, was induced in leaves by wounding, hormones, and environmental stresses. The leaf-specific 27 kDa protein was induced in leaves that were treated with exogenous abscisic acid (ABA), ethephon, methyl jasmonate (MeJA), and water deficit. These results indicate that the 27 kDa protein in leaves could function as a defense protein against mechanical damages by herbivorous animals and abiotic environmental stresses that could induce plant hormones.
Kang
Sang-Gu
SG
Institute of Biotechnology, Yeungnam University, Kyongsan, Korea.
Choi
Jun-Hwa
JH
Suh
Sang-Gon
SG
D000040:Abscisic Acid / Q000494:pharmacology; D000085:Acetates / Q000494:pharmacology; D003517:Cyclopentanes / Q000494:pharmacology; D005030:Ethylenes / Q000494:pharmacology; D008970:Molecular Weight; D009943:Organophosphorus Compounds / Q000494:pharmacology; D054883:Oxylipins; D010455:Peptides; D010937:Plant Growth Regulators / Q000494:pharmacology; D018515:Plant Leaves / Q000378:metabolism; D010940:Plant Proteins / Q000096:biosynthesis* / Q000737:chemistry; D011198:Solanum tuberosum / Q000187:drug effects / Q000378:metabolism*; D014361:Trypsin Inhibitors / Q000096:biosynthesis* / Q000737:chemistry; D014867:Water / Q000378:metabolism
D000085:Acetates; D003517:Cyclopentanes; D005030:Ethylenes; C053865:Kunitz-type protease inhibitor, plant; D009943:Organophosphorus Compounds; D054883:Oxylipins; D010455:Peptides; D010937:Plant Growth Regulators; D010940:Plant Proteins; D014361:Trypsin Inhibitors; D014867:Water; D000040:Abscisic Acid; C072239:methyl jasmonate; C036216:ethylene; C005073:ethephon