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- Title
Extracellular Self- and Non-Self DNA Involved in Damage Recognition in the Mistletoe Parasitism of Mesquite Trees.
- Authors
López-García, Claudia Marina; Ávila-Hernández, César Alejandro; Quintana-Rodríguez, Elizabeth; Aguilar-Hernández, Víctor; Lozoya-Pérez, Nancy Edith; Rojas-Raya, Mariana Atzhiry; Molina-Torres, Jorge; Araujo-León, Jesús Alfredo; Brito-Argáez, Ligia; González-Sánchez, Avel Adolfo; Ramírez-Chávez, Enrique; Orona-Tamayo, Domancar
- Abstract
Psittacanthus calyculatus parasitizes mesquite trees through a specialized structure called a haustorium, which, in the intrusive process, can cause cellular damage in the host tree and release DAMPs, such as ATP, sugars, RNA, and DNA. These are highly conserved molecules that primarily function as signals that trigger and activate the defense responses. In the present study, we generate extracellular DNA (exDNA) from mesquite (P. laevigata) tree leaves (self-exDNA) and P. calyculatus (non-self exDNA) mistletoe as DAMP sources to examine mesquite trees' capacity to identify specific self or non-self exDNA. We determined that mesquite trees perceive self- and non-self exDNA with the synthesis of O2•−, H2O2, flavonoids, ROS-enzymes system, MAPKs activation, spatial concentrations of JA, SA, ABA, and CKs, and auxins. Our data indicate that self and non-self exDNA application differs in oxidative burst, JA signaling, MAPK gene expression, and scavenger systems. This is the first study to examine the molecular biochemistry effects in a host tree using exDNA sources derived from a mistletoe.
- Subjects
MISTLETOES; DNA damage; MESQUITE; JASMONIC acid; MOLECULAR biology; PARASITISM
- Publication
International Journal of Molecular Sciences, 2024, Vol 25, Issue 1, p457
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms25010457