Extending the knowledge on the histological patterns of leaf galls induced by Ditylenchus gallaeformans (Nematoda) on Miconia (Melastomataceae) hosts

•Ditylenchus gallaeformans induce leaf galls with inderminate growth in Miconia (Melastomataceae).•Trichomes and emergences diversity in galls relates to host plant constraints.•Cristalliferous and tanniferous idioblasts act in the homestasis of gall tissues.•Gall induction on surfaces and the release of pectinases promote the totipotency.