Identification and taxonomy of some entomopathogenic Paecilomyces spp. (Ascomycota) isolates using rDNA-ITS sequences.

Made available in DSpace on 2018-06-05T00:36:33Z (GMT). No. of bitstreams: 1 ID277551.pdf: 329991 bytes, checksum: 32df44fcf2dee1e63972df7805d13d48 (MD5) Previous issue date: 2007-01-0

RAPD analysis revealing polymorphism in egg parasitoids of soybean stink bugs (Hemiptera: Pentatomidae).

Made available in DSpace on 2018-06-11T19:23:37Z (GMT). No. of bitstreams: 1 ID25629.pdf: 265257 bytes, checksum: 97756b7594223f504aa5aa90357a25a9 (MD5) Previous issue date: 2005-09-26bitstream/item/178452/1/ID-25629.pd

Geological Evidence of Paleotsunamis at Torre degli Inglesi (northeast Sicily)

Two layers of fine sand of marine origin occur in a sequence of organic rich colluvia in an archaeological excavation at Torre degli Inglesi, on Capo Peloro, northeast Sicily. Stratigraphic and micropaleontologic analyses support the hypothesis that these layers are related to deposition due to paleotsunami waves. Their ages are constrained both with radiocarbon and archaeological datings. The age of the oldest layer is coincident with the 17 A.D. earthquake that hit Reggio Calabria but for which no tsunami was previously reported. The age of the youngest layer can be only constrained in the range 3rd– 19th century and is tentatively associated to the 6 Feb. 1783 event

Differentiation of Meloidogyne floridensis from M. arenaria using high-fidelity PCR amplified mitochondrial AT-RICH sequences.

Made available in DSpace on 2018-06-05T00:39:50Z (GMT). No. of bitstreams: 1 ID276741.pdf: 426253 bytes, checksum: 5397ae5d0abb431b3505c7b65b1a752c (MD5) Previous issue date: 2006-12-2

Fungos isolados de Meloidogyne mayaguensis em raízes de goiabeiras infectadas.

bitstream/CENARGEN/29555/1/ct054.pd

Cultural and morphological characterization of Pochonia chlamydosporia and Lecanicillium psalliotae isolated from Meloidogyne mayaguensis eggs in Brazil.

The root-knot nematode, Meloidogyne mayaguensis, causes serious economic loss to guava plantation in Brazil. Fungi associated with eggs of M. mayaguensis in Brazilian soil have not been studied yet, but this knowledge could form the basis for future field studies on biological control of this nematode. The egg parasitic fungi, Pochonia chlamydosporia var. chlamydosporia, P.chlamydosporia var. catenulata and Lecanicillium psalliotae, were isolated from M. mayaguensis eggs and analyzed based on their cultural and morphological characteristics. The optimum temperature for growth and spore production ranged between 24 and 28oC for P. chlamydosporia isolates. For the isolate of L. psalliotae, the best growth was at 30 o C. In solid state fermentation, P. chlamydosporia isolates produced between 3.5 and 5.2 x 106 chlamydospores per g of colonized substrate, whereas L. psalliotae isolate produced 8.5 x 108 conidia per g of colonized substrate. Future studies are required to clarify the potential of these fungi as biological control agents of M. mayaguensis