Sex chromosomes have been studied in many plant and animal species. However, few species are suitable as models to study the evolutionary histories of sex chromosomes. We previously demonstrated that papaya (Carica papaya) (2n = 2x = 18), a fruit tree in the family Caricaceae, contains recently emerged but cytologically heteromorphic X/Y chromosomes. We have been intrigued by the possible prese...

Anomalous groundwater changes started three months before the 2011 M9.0 Off the Pacific coast of the Tohoku Earthquake (Tohoku EQ), Japan. Groundwater level and temperature decreased almost simultaneously in a 2000-m well at a spa, Goyo-onsen, in Iwate Prefecture, 155 km northwest of the epicenter. Since the source of Goyo-onsen, located above the edge of a coseismic rupture area of the Tohoku ...

The aim was to estimate the impacts of invasive Impatiens parviflora on forests' herbal layer communities. A replicated Before-After-Control-Impact field experiment and comparisons with adjacent uninvaded plots were used. The alien's impact on species richness was tested using hierarchical generalized mixed effect models with Poisson error structure. Impact on species composition was tested usi...

Bidensyneosides are a group of five recently identified polyacetylenic glucosides from Bidens parviflora WILLD, a traditional Chinese medicinal plant that contains rich bioactive natural products. It was shown that bidensyneosides inhibited both histamine release and nitric oxide production. The synthesis of bidensyneoside A2 (2) and C (4) as well as 3-deoxybidensyneoside C (5) are described. T...

R. PĂLTINEAN, A. TOIU , J. N. WAUTERS, M. FRÉDÉRICH, M. TITS, L. ANGENOT, M. TĂMAŞ , G. CRIŞAN a Department of Pharmaceutical Botany, Faculty of Pharmacy, "Iuliu Hatieganu" University of Medicine and Pharmacy, 12 Ion Creanga Street, 400010 ClujNapoca, Romania Department of Pharmacognosy, Faculty of Pharmacy, "Iuliu Hatieganu" University of Medicine and Pharmacy, 12 Ion Creanga Street, 400010 Cl...

1 CSIRO European Laboratory, Campus International de Baillarguet, 34980 Montferrier-sur-Lez, France. 2 CRC for Australian Weed Management and CSIRO Entomology, Private Bag 5, PO Wembley, WA 6913, Australia. 3 AQIS, PO Box 606, Welshpool, WA 6986, Australia. Corresponding author: M. Jourdan . © CAB International 2008 Potential biological control agents for fumitory (Fu...

BACKGROUND AND AIMS Differences in the chemical and physical traits of plants caused by both genetic and habitat characteristics may influence attack by herbivores. Leaves of Qualea parviflora (Vochysiaceae), a common tree of different habitats in the Brazilian Neotropical savannas (cerrado), are susceptible to severe attack by herbivorous free-living and gall-forming insects. Attack by free-li...