Abstract
The effect of 20% high degree polymerized agave fructans (HDPAF) on the induction of the defense system in avocado fruits was investigated by transcriptomic analysis at 1, 24 and 72 h after treatment, and the effect of HDPAF on respiration rate and ethylene production was also analyzed. Transcriptomic profiling revealed 5425 differentially expressed genes (DEGs), 55 of which were involved in the pathways related to plant defense response to pathogens. Key genes were associated with phenylpropanoid biosynthesis, mitogen-activated protein signaling, plant hormone signaling, calcium ion signal decoding, and pathogenesis-related proteins. Dysregulated genes involved in ethylene biosynthesis were also identified, and the reduction in ethylene production by HDPAF was corroborated by gas chromatography, where three days of delayed peak production was observed compared to that in water-treated fruits. These results help to understand the mechanism of induction of the avocado defense system by applying HDPAF and support the application of HDPAF as an efficient postharvest treatment to extend the shelf life of the fruit.
Funder
Tecnológico Nacional de México
Consejo Nacional de Ciencia y Tecnología
Publisher
Public Library of Science (PLoS)
Reference39 articles.
1. FAO. Global Initiative on Food Loss and Waste Reduction What IS food. Rome, Italy 2015. Available: https://www.fao.org/3/i4068e/i4068e.pdf
2. Biological control of postharvest diseases of fruits and vegetables by microbial antagonists: A review;RR Sharma;Biological Control,2009
3. FAO. Food loss and waste and the right to adequate food: making the connection. Rome 2018 [cited 10 Apr 2023]. Available: https://www.fao.org/3/ca1397en/CA1397EN.pdf
4. Nanomaterials as Alternative Control Means Against Postharvest Diseases in Fruit Crops;S Ruffo-Roberto;Nanomaterials,2019
5. Biological control agents and chemical inducers of resistance for postharvest control of Penicillium expansum Link. on apple fruit;M Quaglia;Postharvest Biology and Technology,2011