6533b7dafe1ef96bd126f62f
RESEARCH PRODUCT
Different bacteria can enhance the micropropagation response of Cotoneaster lacteus (Rosaceae)
C. MonierE. BossisR. SamsonC. Chabanetsubject
0106 biological sciencesINTERACTION PLANTE PATHOGENEPseudomonas fluorescens01 natural sciencesApplied Microbiology and BiotechnologySomaclonal variation03 medical and health sciencesBotanyARBUSTE ORNEMENTALCotoneaster lacteus[SDV.MP] Life Sciences [q-bio]/Microbiology and ParasitologyComputingMilieux_MISCELLANEOUS030304 developmental biology0303 health sciencesbiologyBacillus pumilusfood and beveragesGeneral Medicinebiology.organism_classification[SDV.MP]Life Sciences [q-bio]/Microbiology and ParasitologyMicropropagationCotoneasterFire blight010606 plant biology & botanyBiotechnologyExplant culturedescription
C. MONIER, E. BOSSIS, C. CHABANET AND R. SAMSON. 1998. Cotoneaster species are widely used ornamental shrubs, and research is under way to select genotypes which are more resistant to fire blight by somaclonal variation. During the establishment of micropropagation, one genotype, Cotoneaster lacteus, showed the development of endogenous bacterial contaminants. Two strains were isolated from in vitro explants: Bacillus pumilus and Alcaligenes faecalis. These two strains, and some Pseudomonas fluorescens and Ps. putida, promoted in vitro multiplication and rooting of explants. In Pseudomonas strains, rooting enhancing capacity appeared to be related to indole-3-acetic acid (IAA) production, as only strains which produced IAA promoted rooting. Moreover, all deleterious strains included in the study for in vitro culture produce cyanide, unlike the above mentioned strains. As to endogenous contaminants, micropropagation enhancing capacity may be attributed to a direct or indirect action on endogenous auxin concentration.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-12-01 |