Disease diagnostic strategies and emerging analytical metabolomics techniques for waterborne microbial pathogens in vegetable crops—A critical review

Author:

Nnabuo‐Eguzozie Emmanuella C.1ORCID,Kibechu Rose W.2,Eguzozie Kennedy U.3,Mamba Bhekie B.3,Nyoni Hlengilizwe3,Nkambule Thabo T. I.3,Msagati Titus A. M.3ORCID

Affiliation:

1. Department of Environmental Sciences, College of Agriculture and Environmental Sciences University of South Africa “Florida Campus” Johannesburg South Africa

2. Department of Chemistry University of Eswatini Kwaluseni Eswatini

3. Institute for Nanotechnology and Water Sustainability, College of Science Engineering and Technology University of South Africa, Florida Science Campus Johannesburg South Africa

Abstract

AbstractA significant number of people around the world suffer from illnesses that are related to the consumption of unsafe vegetable crops. Early identification of waterborne microbial pathogens affecting vegetable crops can be an important step towards the control of disease. Microbial pathogens secrete extracellular metabolic volatiles or molecular biomarkers that affect the yield and quality of vegetable crops. These secreted compounds can be investigated using several applied analytical techniques, such as metabolomics, proteomics and other ‘omics’ tools. Currently, it is possible to use these approaches to characterize a broad range of specialized metabolites present in vegetable crops affected by waterborne and soilborne microbial pathogens. Such approaches may be used to determine molecular biomarkers, which can subsequently be exploited for the diagnosis of microbial pathogens that affect vegetable crops. Molecular biomarkers are involved in complex pathogenic biological processes involving mechanisms of pathogenesis and could be of great interest in the field of metabolomics. This review investigates disease diagnostic strategies and emerging analytical metabolomics techniques for waterborne microbial pathogens in vegetable crops. These will be vital in building comprehensive and more reliable data regarding the nature of secreted proteins and other specialized metabolites in vegetable crops and will lead to an increased understanding of the interactions between the host and pathogenic oomycetes, fungi, bacteria and viruses.

Publisher

Wiley

Subject

Horticulture,Plant Science,Genetics,Agronomy and Crop Science

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