title: Analysis of mycorrhizal associations formed by Cistus incanus transformed root clones with Terfezia boudieri isolates.
abstract: One clone (M-2), out of several Agrobacterium rhizogenes transformed root clones of Cistus incanus, formed ecto- or endomycorrhiza in vitro with two isolates of Terfezia boudieri collected in Israel. All other clone-fungal isolate combinations formed ectomycorrhiza. The endomycorrhiza-forming isolate secreted smaller amounts of auxin than an ectomycorrhiza-forming isolate. Addition of 2,4-dichlorophenoxyacetic acid (2,4-D) led to ectomycorrhiza formation by the M-2 clone on low P medium. Endomycorrhizas were formed by both M-2 and a control clone with the same T. boudieri isolates on high P medium with 2,4-D. The M-2 clone of C. incanus exhibited greater sensitivity to exogenous auxins (IAA and 2,4-D) than other clones, and clonal sensitivity to auxin was increased tenfold under low P conditions. Results are discussed in relation to phosphate and auxin influence on T. boudieri-C. incanus interaction.
authors.affiliation: Department of Life Sciences, Ben Gurion University, POB 653, Beer Sheva, Israel.
authors.forename: M
authors.initials: M
authors.lastname: Zaretsky
authors.forename: V
authors.initials: V
authors.lastname: Kagan-Zur
authors.forename: D
authors.initials: D
authors.lastname: Mills
authors.forename: N
authors.initials: N
authors.lastname: Roth-Bejerano
mesh_terms: D001203:Ascomycota / Q000502:physiology*; D029758:Cistus / Q000382:microbiology*; D007210:Indoleacetic Acids / Q000378:metabolism / Q000494:pharmacology; D038821:Mycorrhizae / Q000187:drug effects / Q000502:physiology*; D018517:Plant Roots / Q000166:cytology / Q000187:drug effects / Q000254:growth & development / Q000382:microbiology*; D014170:Transformation, Genetic
chemical_list: D007210:Indoleacetic Acids