The European chestnut (Castanea sativa) is threatened by the hemibiotrophic oomycete Phytophthora cinnamomi, causal agent of ink disease. Chestnut species have different susceptibility levels to P. with Asian (C. crenata; C. mollissima) exhibiting highest level resistance. A histological approach was used study responses exhibited susceptible and resistant genotypes characterizing early stages ...

The Socotra Archipelago is an ancient continental fragment of Gondwanan origin and one of the most isolated landforms on Earth and a biodiversity hot spot. Yet, the biogeography and evolutionary history of its endemic fauna still remain largely overlooked. We investigate the origin, tempo and mode of diversification in the Hemidactylus geckos of the Socotra Archipelago. Concatenated and multilo...

The resistance inducing agent 1, 2, 3-Benzothiadiazole-7-carbothioic acid S-methyl ester (BTH) has been demonstrated in triggering defence reactions in crop plants against bacterial, fungal and viral pathogens but also against parasitic weeds of the genus Orobanche. In this study, pot experiments were conducted under greenhouse conditions to evaluate the efficacy of different concentrations of ...

We invest igated the effects of ozone and leaf senescence on steady-state stomatal conductance and stomatal response to light variat ion. Measurements were carried out in a free -air ozone exposure experiment on a representat ive deciduous broadleaved tree species in Japan (Fagus crenata). Both steady-state and dynamic stomatal response to light variat ion varied intrinsically with season due t...

The family Xeniidae (Octocorallia) constitutes an abundant benthic component on many Indo-West Pacific coral reefs and is ecologically important in the Red Sea. The genus Ovabunda Alderslade, 2001 was recently established to accommodate previous Xenia species with sclerites comprised of a mass of minute corpuscle-shaped microscleres. The aim of the present study was to examine type material of ...