RT info:eu-repo/semantics/article
T1 Frass from yellow mealworm (Tenebrio molitor) as plant fertilizer and defense priming agent
A1 Blakstad, Jakob Irgens
A1 Strimbeck, Richard
A1 Poveda Arias, Jorge
A1 Bones, Atle Magnar
A1 Kissen, Ralph
K1 Ingeniería Agrícola
K1 Gestión forestal
K1 Insect frass
K1 Arabidopsis thaliana
K1 Botrytis cinerea
K1 Excremento de insectos
K1 Botritis cinerea
K1 3102 Ingeniería Agrícola
AB World population growth requires the development of a sustainable agriculture that allows feeding all the inhabitants of the planet, while reducing the use of agrochemicals. Currently, the insect farming industry for food and feed production is developing exponentially throughout the world; also producing insect frass with a potential utilization within agriculture and greenhouse industry. In the case of the yellow mealworm (Tenebrio molitor), few studies have been developed so far on the use of frass as a fertilizer, and there are none on its ability to activate plant defenses. By applying 2% sterilized mealworm frass to tomato we found a significant increase in its growth, demonstrating that the microbiota might not play a key role in its fertilizing capacity. In addition, the application of frass to sunflowers under different situations of nutritional deficit allowed us to determine what specific nutrients this fertilizer may be providing to the plant, finding a possible deficiency in the supply of N, but with sufficient amounts of P, K, Ca, and S. With respect to the induction of defenses, mealworm insect frass did not induce local root defenses in a root callose deposition assay in Arabidopsis thaliana under our experimental conditions. However, it activated systemic defenses in Arabidopsis thaliana by inducing defense genes in the absence of pathogen, further enhanced by infection with the necrotrophic fungus Botrytis cinerea. Therefore, mealworm frass could be a good fertilizer resource and plant defense inducer to support development of sustainable agriculture.
PB Elsevier
SN 1878-8181
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/61870
UL https://uvadoc.uva.es/handle/10324/61870
LA eng
NO Biocatalysis and Agricultural Biotechnology, 2023, vol. 53, 102862
NO Producción Científica
DS UVaDOC
RD 23-jun-2024