| Title: | Mechanical wounding impacts the growth versus defense balance in tomato (Solanum lycopersicum) |
| Author(s): | Cunha AFA; Rodrigues PHD; Anghinoni AC; de Paiva VJ; Pinheiro D; Campos ML; |
| Address: | "Programa de Pos-Graduacao em Biologia Vegetal, Universidade Federal de Mato Grosso, Cuiaba, MT 78060-900, Brazil; Integrative Plant Research Laboratory, Departamento de Botanica e Ecologia, Instituto de Biociencias, Universidade Federal de Mato Grosso, Cuiaba, MT, Brazil. Electronic address: anaflaviarep@hotmail.com. Integrative Plant Research Laboratory, Departamento de Botanica e Ecologia, Instituto de Biociencias, Universidade Federal de Mato Grosso, Cuiaba, MT, Brazil. Electronic address: pedroduarte.biologia@gmail.com. Integrative Plant Research Laboratory, Departamento de Botanica e Ecologia, Instituto de Biociencias, Universidade Federal de Mato Grosso, Cuiaba, MT, Brazil. Electronic address: anghinonianaclara@gmail.com. Integrative Plant Research Laboratory, Departamento de Botanica e Ecologia, Instituto de Biociencias, Universidade Federal de Mato Grosso, Cuiaba, MT, Brazil. Electronic address: paivavinicius4@gmail.com. Integrative Plant Research Laboratory, Departamento de Botanica e Ecologia, Instituto de Biociencias, Universidade Federal de Mato Grosso, Cuiaba, MT, Brazil; Programa de Pos-Graduacao em Ecologia e Conservacao da Biodiversidade, Universidade Federal de Mato Grosso, Cuiaba, MT 78060-900, Brazil. Electronic address: daniel.pinheiro1997@gmail.com. Programa de Pos-Graduacao em Biologia Vegetal, Universidade Federal de Mato Grosso, Cuiaba, MT 78060-900, Brazil; Integrative Plant Research Laboratory, Departamento de Botanica e Ecologia, Instituto de Biociencias, Universidade Federal de Mato Grosso, Cuiaba, MT, Brazil; Programa de Pos-Graduacao em Ecologia e Conservacao da Biodiversidade, Universidade Federal de Mato Grosso, Cuiaba, MT 78060-900, Brazil. Electronic address: marcelo.campos@ufmt.br" |
| DOI: | 10.1016/j.plantsci.2023.111601 |
| ISSN/ISBN: | 1873-2259 (Electronic) 0168-9452 (Linking) |
| Abstract: | "Plants have evolved elaborate surveillance systems that allow them to perceive the attack by pests and pathogens and activate the appropriate defenses. Mechanical stimulation, such as mechanical wounding, represents one of the most reliable cues for the perception of potential herbivore aggressors. Here we demonstrate that mechanical wounding disturbs the growth versus defense balance in tomato, a physiological condition where growth reduction arises as a pleiotropic consequence of the activation of defense responses (or vice-versa). We observed that multiple lesions on tomato leaves impairs the formation of several growth-related traits, including shoot elongation, leaf expansion and time for flowering, while concomitantly activating the production of defense responses such as trichome formation and the upregulation of defense-related genes. We also provide genetic evidence that this wound-induced growth repression is possibly a consequence of tomato plants sensing the injuries via jasmonates (JAs), a class of plant hormones known to be master regulators of the plant growth versus defense balance. Besides providing a mechanistic explanation on how the growth and defense balance is shifted when plants are subjected to a specific type of mechanical stimulus, our results may offer a practical explanation for why tomato productivity is so negatively impacted by herbivore attack" |
| Keywords: | *Solanum lycopersicum Herbivory Plant Growth Regulators Cyclopentanes/pharmacology Oxylipins/pharmacology Plant Leaves Flowering Growth-defense trade-off Jasmonate Mechanical stimulus Pest Trichome; |
| Notes: | "MedlineCunha, Ana Flavia Aparecida Rodrigues, Pedro Henrique Duarte Anghinoni, Ana Clara de Paiva, Vinicius Juliani Pinheiro, Daniel Goncalves da Silva Campos, Marcelo Lattarulo eng Ireland 2023/01/24 Plant Sci. 2023 Apr; 329:111601. doi: 10.1016/j.plantsci.2023.111601. Epub 2023 Jan 20" |
