Eugenia involucrata DC. and Handroanthus chrysotrichus (Mart. ex DC) Mattos are native species with economic, ecological and silvicultural. They have problems with their spread via seeds, because they are recalcitrant ...

Apical surgeries are part of a segment of root canal treatment by which we can correct or eliminate iatrogenic deficiencies arising from conventional endodontic treatment. Currently no consensus among authors regarding to ...

Although ferns are an important group for understanding leaf evolution, their developmental processes are still few understood. To better understand the organization of meristems and ontogeny of leaves in ferns, we studied ...

The in vitro regeneration potential of shoot apical tips (2 to 3 mm in length), meristems (0.3 to 0.5 mm in length), and nodal segments (4 to 7 mm long with an axillary bud) of diploid (2n = 2x = 20) and triploid (2n = 3x ...

Apobaetis insolitus n. sp., Apobaetis kallawaya n. sp. and Apobaetis niger n. sp. (Ephemeroptera: Baetidae) are described from nymphs collected in Argentina and Bolivia. Apobaetis insolitus can be distinguished by the ...