title: Effects of plant growth promoting bacteria and mycorrhizal on Capsicum annuum L. var. aviculare ([Dierbach] D'Arcy and Eshbaugh) germination under stressing abiotic conditions.
abstract: Capsicum annuum var. aviculare to Tarahumara and Papago Indians and farmers of Sonora desert is a promising biological and commercial value as a natural resource from arid and semiarid coastal zones. Traditionally, apply synthetic fertilizers to compensate for soil nitrogen deficiency. However, indiscriminate use of these fertilizers might increase salinity. The inoculation by plant growth promoting bacteria (PGPB) and arbuscular mycorrhizal fungi (AMF) represents an alternative as potential bio fertilizer resources for salty areas. Seeds ecotypes from four areas of Sonora desert (Mazocahui, Baviacora, Arizpe, La Tortuga), in order to inoculate them with one species of PGPB and AMF. Two germination tests were carried out to study the effect of salinity, temperature regime (night/day) and inoculation with PGPB and AMF growth factors measured on germination (percentage and rate), plant height, root length, and produced biomass (fresh and dry matter). The results indicated that from four studied ecotypes, Mazocahui was the most outstanding of all, showing the highest germination under saline and non-saline conditions. However, the PGPB and AMF influenced the others variables evaluated. This study is the first step to obtain an ideal ecotype of C. a. var. aviculare, which grows in the northwest of México and promoting this type of microorganisms as an efficient and reliable biological product. Studies of the association of PGPB and AMF with the C. a. var. aviculare-Mazocahui ecotype are recommended to determine the extent to which these observations can be reproduced under field conditions.
authors.affiliation: Universidad de Sonora, Campus Santa Ana, Carretera Internacional y, 16 de septiembre s/n, Santa Ana, Sonora, CP 84600, Mexico. erueda04@santana.uson.mx
authors.forename: Edgar Omar
authors.initials: EO
authors.lastname: Rueda-Puente
authors.forename: Bernardo
authors.initials: B
authors.lastname: Murillo-Amador
authors.forename: T
authors.initials: T
authors.lastname: Castellanos-Cervantes
authors.forename: José Luís
authors.initials: JL
authors.lastname: García-Hernández
authors.forename: Mario Antonio
authors.initials: MA
authors.lastname: Tarazòn-Herrera
authors.forename: Salomòn
authors.initials: S
authors.lastname: Moreno Medina
authors.forename: Luis Ernesto
authors.initials: LE
authors.lastname: Gerlach Barrera
mesh_terms: D000222:Adaptation, Physiological / Q000187:drug effects; D001419:Bacteria / Q000254:growth & development*; D018533:Biomass; D002212:Capsicum / Q000145:classification / Q000254:growth & development* / Q000382:microbiology; D018525:Germination / Q000187:drug effects; D007711:Klebsiella pneumoniae / Q000254:growth & development; D008800:Mexico; D038821:Mycorrhizae / Q000254:growth & development*; D018517:Plant Roots / Q000254:growth & development* / Q000382:microbiology; D054712:Salinity; D012639:Seeds / Q000254:growth & development*; D012965:Sodium Chloride / Q000494:pharmacology; D013045:Species Specificity; D013696:Temperature
chemical_list: D012965:Sodium Chloride