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- Title
Screening of plant resources with anti-ice nucleation activity for frost damage prevention.
- Authors
Suzuki, Shingo; Fukuda, Satoshi; Fukushi, Yukiharu; Arakawa, Keita
- Abstract
Previous studies have shown that some polyphenols have anti-ice nucleation activity (anti-INA) against ice-nucleating bacteria that contribute to frost damage. In the present study, leaf disk freezing assay, a test ofin vitroapplication to plant leaves, was performed for the screening of anti-INA, which inhibits the ice nucleation activity of an ice-nucleating bacteriumErwinia ananasin water droplets on the leaf surfaces. The application of polyphenols with anti-INA, kaempferol 7-O-β-glucoside and (–)-epigallocatechin gallate, to the leaf disk freezing assay by cooling at −4–−6 °C for 3 h, revealed that both the compounds showed anti-INAs againstE. ananasin water droplets on the leaf surfaces. Further, this assay also revealed that the extracts of five plant leaves showed high anti-INA againstE. ananasin water droplets on leaf surfaces, indicating that they are the candidate resources to protect crops from frost damage. Water droplets with ice-nucleating bacteria on leaf disks were hardly frozen by addition of leaf crude extracts. Unfrozen leaf disks survived freezing injury.
- Subjects
NUCLEATION; FROST damage to plants; POLYPHENOLS
- Publication
Bioscience, Biotechnology & Biochemistry, 2017, Vol 81, Issue 11, p2090
- ISSN
0916-8451
- Publication type
Article
- DOI
10.1080/09168451.2017.1373587