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[Bacillus isolates from rhizosphere of cacti improve germination and bloom in Mammillaria spp. (Cactaceae)]. / Aislados de Bacillus provenientes de la rizósfera de cactus incrementan la germinación y la floración en Mammillaria spp. (Cactaceae).
Chávez-Ambriz, Lluvia A; Hernández-Morales, Alejandro; Cabrera-Luna, José A; Luna-Martínez, Laura; Pacheco-Aguilar, Juan R.
Afiliação
  • Chávez-Ambriz LA; Laboratorio de Plantas y Biotecnología Agrícola, Facultad de Química, Universidad Autónoma de Querétaro, Querétaro, México.
  • Hernández-Morales A; Unidad Académica Multidisciplinaria Zona Huasteca, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México.
  • Cabrera-Luna JA; Herbario Dr. Jerzy Rzedowski, Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Querétaro, México.
  • Luna-Martínez L; Laboratorio de Plantas y Biotecnología Agrícola, Facultad de Química, Universidad Autónoma de Querétaro, Querétaro, México.
  • Pacheco-Aguilar JR; Laboratorio de Plantas y Biotecnología Agrícola, Facultad de Química, Universidad Autónoma de Querétaro, Querétaro, México. Electronic address: juanramiro29@yahoo.com.mx.
Rev Argent Microbiol ; 48(4): 333-341, 2016.
Article em Es | MEDLINE | ID: mdl-27876169
Cacti are the most representative vegetation of arid zones in Mexico where rainfall is scarce, evapotranspiration is high and soil fertility is low. Plants have developed physiological strategies such as the association with microorganisms in the rhizosphere zone to increase nutrient uptake. In the present work, four bacterial isolates from the rhizosphere of Mammillaria magnimamma and Coryphantha radians were obtained and named as QAP3, QAP19, QAP22 and QAP24, and were genetically identified as belonging to the genus Bacillus, exhibiting in vitro biochemical properties such as phosphate solubilization, indoleacetic acid production and ACC deaminase activity related to plant growth promotion, which was tested by inoculating M. magnimamma seeds. It was found that all isolates increased germination from 17 to 34.3% with respect to the uninoculated control seeds, being QAP24 the one having the greatest effect, accomplishing the germination of viable seeds (84.7%) three days before the control seeds. Subsequently, the inoculation of Mammillari zeilmanniana plants with this isolate showed a positive effect on bloom, registering during two months from a one year period, an increase of up to 31.0% in the number of flowering plants compared to control plants. The characterized Bacillus spp. isolates have potential to be used in conservation programs of plant species from arid zones.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Microbiologia do Solo / Bacillus / Cactaceae / Rizosfera / Inoculantes Agrícolas Idioma: Es Revista: Rev Argent Microbiol Ano de publicação: 2016 Tipo de documento: Article País de publicação: Argentina

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Microbiologia do Solo / Bacillus / Cactaceae / Rizosfera / Inoculantes Agrícolas Idioma: Es Revista: Rev Argent Microbiol Ano de publicação: 2016 Tipo de documento: Article País de publicação: Argentina