| intraspecific invariability of the internal transcribed spacer region of rdna of the truffle terfezia terfezioides in europe. | its regions (internal transcribed spacers--its1 and its2--with the 5.8s gene of the nuclear rdna) of 25 fruit body samples of terfezia terfezioides, originating from hungary and italy, were compared. the amplification and sequencing of the its region was successful with both the its1-its4 and its1f-its4 primer pairs. no differences of the restriction fragment length polymorphism profiles were detected among 19 samples collected in one place at the same time. the sequences of the its region of 9 ... | 2001 | 11899476 |
| molecular phylogeny of the mycorrhizal desert truffles (terfezia and tirmania), host specificity and edaphic tolerance. | terfezia and tirmania, so called desert truffles, are mycorrhizal fungi mostly endemic to arid and semi-arid areas of the mediterranean region, where they are associated with helianthemum species. the aim of this work was to study the phylogenetic relationships in these pezizalean hypogeous fungi. the restriction fragment length polymorphism (rflp) and dna sequences of internal transcribed spacers (its) of the nuclear rdna were studied for several morphological species, terfezia arenaria, t. bou ... | 2002 | 21156494 |
| in vitro interaction of the truffle terfezia terfezioides with robinia pseudoacacia and helianthemum ovatum. | the type of the in vitro root interactions of terfezia terfezioides with the plants robinia pseudoacacia and helianthemum ovatum was investigated including detailed anatomical and ultrastructural characterization. no difference in growth was detected at different phosphate concentrations on agar synthetic medium between the inoculated and control plants during a short-time cultivation. the fungal colonization of the roots increased with higher phosphate level in both plant species, but was alway ... | 2003 | 12879749 |
| studies on the root associations of the truffle terfezia terfezioides. | the paper contains an overview of the results of the studies made on the truffle terfezia terfezioides, particularly the investigations related to the associations of this fungus with plants. twelve plant species originated from a natural habitat of the fungus were supposed to be connected with t. terfezioides based on the anatomy of the endogenous fungal structures in their roots. aseptic experiments were carried out on modified mmn substrates with different phosphate concentrations to study th ... | 2002 | 12109150 |
| molecular phylogeny of truffles (pezizales: terfeziaceae, tuberaceae) derived from nuclear rdna sequence analysis. | extensive morphological convergence or divergence, a common occurrence in fungi, tends to obscure recognition of phylogenetic relationships among pezizales, widespread filamentous ascomycetes with either enclosed underground (hypogeous) or exposed (epigeous) fruit bodies, that often establish mutualistic interactions with arboreous plants. focusing on hypogeous pezizales commonly known as truffles, we sequenced the 18s rdna from nine species belonging to three different families (tuberaceae, ter ... | 1999 | 10508550 |