Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 20, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/ijms20061345
Keywords
serine protease inhibitors; plants; pathogen resistance; molecular farming
Funding
- National Research Council (CONICET, Argentina) [PIP 0494CO/2012]
- National Agency for Promotion of Science and Technology (ANPCyT, Argentina) [PICT 2014-2473, PICT 2016-0310, PICT 2016-0621, PICT 2016-0113]
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The serine protease inhibitors (SPIs) are widely distributed in living organisms like bacteria, fungi, plants, and humans. The main function of SPIs as protease enzymes is to regulate the proteolytic activity. In plants, most of the studies of SPIs have been focused on their physiological role. The initial studies carried out in plants showed that SPIs participate in the regulation of endogenous proteolytic processes, as the regulation of proteases in seeds. Besides, it was observed that SPIs also participate in the regulation of cell death during plant development and senescence. On the other hand, plant SPIs have an important role in plant defense against pests and phytopathogenic microorganisms. In the last 20 years, several transgenic plants over-expressing SPIs have been produced and tested in order to achieve the increase of the resistance against pathogenic insects. Finally, in molecular farming, SPIs have been employed to minimize the proteolysis of recombinant proteins expressed in plants. The present review discusses the potential biotechnological applications of plant SPIs in the agriculture field.
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