Search results for "serpent"
showing 10 items of 60 documents
Purification and partial amino acid sequences of the enzyme vinorine synthase involved in a crucial step of ajmaline biosynthesis.
2004
The acetyl-CoA-dependent enzyme vinorine synthase was isolated from hybrid cell suspension cultures of Rauvolfia serpentina and Rhazya stricta. The sarpagan-type alkaloid gardneral was used as a substrate of the enzyme leading to the ajmalan-type 10-methoxyvinorine. An HPLC-based assay was developed to monitor vinorine synthase activity, which allowed establishing a five step purification procedure combining anion exchange, hydrophobic interaction, hydroxyapatite and gel filtration. Purification resulted in a yield of 0.2% and an approximately 991-fold enrichment of the acetyltransfer activity. SDS-PAGE analysis showed a Mr for the enzyme of approximately 50 kDa. The four peptide fragments …
Morphological variation of the newly confirmed population of the javelin sand boa, Eryx jaculus (Linnaeus, 1758) (Serpentes, erycidae) in Sicily, Ita…
2019
The presence of the Javelin sand boa in Sicily has recently been confirmed. Here the morphological characters and sexual dimorphism of the Sicilian population of Eryx jaculus are presented. Seven meristic and six metric characters in 96 specimens from Sicily were examined. The results show that tail length, snout-vent length, the distance between nostrils and the number of ventral and subcaudal scales are different between sexes. The characters found in the Sicilian population of the Javelin sand boa resemble those of the African population (ssp. jaculus) rather than the Eurasian population (ssp. turcicus), but biomolecular studies are necessary to understand its taxonomic identity.
INTERRELAZIONI TRA L’ARTROPODOFAUNA DELL’AGRUMETO E QUELLA DELLA SUA FLORA SINANTROPICA: OSPITI DELLE SPECIE DI RATZEBURGIOLA ERDÖS 1958 (HYMENOPTERA…
1997
Current status of the biological control of the citrus leafminer in Sicily
2003
COMUNITÀ DI PARASSITOIDI DI FITOFAGI DELLA FLORA SPONTANEA ANTAGONISTI DI PHYLLOCNISTIS CITRELLA STAINTON (LEPIDOPTERA, GRACILLARIIDAE).
2000
L’ARTROPODOFAUNA ASSOCIATA A PARIETARIA SPP. (URTICACEAE) – 3° NOTA – PARASSITOIDI DI COSMOPTERIX PULCHRIMELLA CHAMBERS (LEPIDOPTERA COSMOPTERIGIDAE).
1997
CONTROL OF PHYLLOCNISTIS CITRELLA STAINTON (LEPIDOPTERA: GRACILLARIIDAE) BY SELECTIVE INSECTICIDES AND BY MANIPULATION OF INDIGENOUS NATURAL ANTAGONI…
1999
ON THE CONTROL OF PHYLLOCNISTIS CITRELLA STAINTON (LEPIDOPTERA GRACILLARIIDAE) BY SELECTIVE INSECTICIDES AND BY MANIPULATION OF INDIGENOUS NATURAL AN…
1998
OSSERVAZIONI SUL COMPORTAMENTO DELLE FEMMINE ADULTE E SULLO SVILUPPO PREIMMAGINALE DI EULOFIDI (HYMENOPTERA, EULOPHIDAE) PARASSITOIDI DI PHYLLOCNISTI…
2000
Geometria, architettura, stereotomia nelle scale elicoidali
2008
Si descrive e si disegna dopo un attento rilievo topografico un'originale scala elicoidale in pietra da taglio realizzata, nel 1852, dall’architetto Carlo Giachery all’interno del Palazzo dell’ex Ministero di Stato durante interventi di ampliamento e di ristrutturazione del palazzo.