Sporothrix inflata, a root-inhabiting fungus of Quercus robur and Q. petraea
The anamorphic fungus Sporothrix inflata, known as a soil-borne fungus with worldwide distribution, was isolated for the first time from the cortex and central cylinder of living and dead roots of healthy and diseased oak trees (Quercus robur and Q. petraea). Isolation frequencies of S. inflata from oak roots varied according to the health status of trees, oak species, study sites, soil depth and root diameter. Colony morphology and growth rate of isolates are influenced by colony age and type of culture medium.
Ticogloea guttulata - the first record from oak and the third report world-wide.
Ticogloea guttulata, a mitosporic fungus previously described from roots of Ticodendron wcognitum from Costa Rica and from a root of Tilia platyphyllos in Germany, was isolated several times from roots of Quercus petraea and Q. robur in Austria. This is the first record of'/'. guttulata from oak and the third report of this fungus world-wide. The species was isolated not only from living but also from dead roots and therefore appears to live endophytically as well as saprophytical ly. The frequency of colonization of roots by T. guttulata was similar for both healthy and diseased oak trees. The presence of T. guttulata therefore could not be related to crown defoliation. However, frequency of colonization was influenced by root diameteT and soil depth from which roots had been sampled. Zusammenfassung: Ticogloea guttulata, ein bisher aus Costa Rica an Wurzeln von Ticodendron in- cognitum sowie aus Deutschland an einer Wurzel von Tiha platyphyllos beschriebener mitosporer Pilz, wurde in Osterreich mehrmals aus Wurzeln von Quercus petraea und Q. robur isoliert. Dies ist der Erstnachweis von 7. guttulata an Eiche und weltweit der dritte Nachweis dieser Art. Die Pilzart wurde sowohl aus Lebendwurzeln als auch aus Totwurzeln isoliert, was auf eine endophytische sowie saprophytische Lebensweise schliesen last. Wurzeln gesunder und geschadigter Eichen waren unge- fahr gleich haufig von T. guttulata besiedelt. Die Besiedlungshaufigkeit von Eichenwurzeln durch 7. guttulata war somit unabhangig vom Kronenzustand. Einen deutlichen Einflus auf die Besiedlungs- haufigkeit hatten hingegen Wurzeldurchmesser und Bodenhorizont (-tiefe), aus dem die Wurzelproben entnommen wurden.
NEW DECAPODS FROM THE NAVIDAD FORMATION (MIOCENE) OF CHILE
Abstract A new Miocene decapod fauna is described from the Navidad Formation of coastal Chile. The fauna includes five callianassoid taxa, none of which is preserved sufficiently to identify to species level. New species include Calappilia? chilensis, Hepatus spinimarginatus, Proterocarcinus navidad, Pilumnus cucaoensis, and Pinnixa navidadensis. A possible rhizopine member of the Pilumnidae Samouelle, 1819, is described. Trichopeltarion levis Casadío et al., 2004, previously known from the late Oligocene of western Argentina, was also recovered from these rocks. Calappa circularis Beurlen, from the lower Miocene Pirabas Formation in Brazil, is herein referred to Calappilia. This report greatly increases the known number of fossil decapods from Chile and sets the stage for paleobiogeographic comparison of the decapod faunas of Chile and Argentina.