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Research article2021Peer reviewedOpen access

A fast, nondestructive method for the detection of disease-related lesions and wounded leaves

Zahid, Muhammad Awais; Sandroni, Murilo; Vetukuri, Ramesh Raju; Andreasson, Erik

Abstract

Trypan blue staining is a classic way of visualizing leaf disease and wound responses in plants, but it involves working with toxic chemicals and is time-consuming (2-3 days). Here, the investigators established near-infrared scanning with standard lab equipment as a fast and nondestructive method for the analysis of leaf injuries compared with trypan blue staining. Pathogen-inoculated and wounded leaves from potato, tomato, spinach, strawberry, and arabidopsis plants were used for proof of concept. The results showed that this newly developed protocol with near-infrared scanning gave the same results as trypan blue staining. Furthermore, a macro in FIJI was made to quantify the leaf damage. The new protocol was time-efficient, nondestructive, chemical-free and may be used for high-throughput studies.

Keywords

image processing; leaf damage; lesions; phenotyping; plant disease; potato; Phytophthora

Published in

Biotechniques
2021, Volume: 71, number: 2Publisher: FUTURE SCI LTD