Divergent abiotic spectral pathways unravel pathogen stress signals across species.

ABSTRACT: Plant pathogens pose increasing threats to global food security, causing yield losses that exceed 30% in food-deficit regions. Xylella fastidiosa (Xf) represents the major transboundary plant pest and one of the world's most damaging pathogens in terms of socioeconomic impact. Spectral screening methods are critical to detect non-visual symptoms of early infection and prevent spread. However, the subtle pathogen-induced physiological alterations that are spectrally detectable are entangled with the dynamics of abiotic stresses. Here, using airborne spectroscopy and thermal scanning of areas covering more than one million trees of different species, infections and water stress levels, we reveal the existence of divergent pathogen- and host-specific spectral pathways that can disentangle bio

SUBMITTER: Zarco-Tejada PJ 

PROVIDER: S-EPMC8526582 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature