Although the inhibition of succinic dehydrogenase by oxalacetate is a generally accepted fact, there is a paucity of data on the subject. In 1937 Das (l), using a modified Thunberg technique, reported that the enzyme was 50 per cent inhibited by 2 X 1O-5 M oxalacetate when the succinate concentration was 0.025 M. In 1939 Potter (2) reported that the oxidation of succinate by liver and kidney ho...

We sought to quantify changes in tree species composition, forest structure and aboveground forest biomass (AGB) over 76 years (1930-2006) in the deciduous Black Rock Forest in southeastern New York, USA. We used data from periodic forest inventories, published floras and a set of eight long-term plots, along with species-specific allometric equations to estimate AGB and carbon content. Between...

In urban areas, trees play a crucial role as providers of ecosystem services, which enhance the well-being humans directly and indirectly. Research on generally depict complex system historical, cultural natural values. However, changes can modify historic landscapes by causing loss environmental this study, we assessed native people’s perception in landscape Bay Naples (Italy) with main goals ...

Abstract Most commercial orchards of mandarins in Paraná grow ‘Ponkan’ trees predominantly grafted on ‘Rangpur’ lime. The limited genetic diversity citrus for both scion and rootstock may promote pest disease outbreaks. late season ‘Montenegrina’ willowleaf mandarin has high potential orchard diversification because its higher productivity better fruit quality. Therefore, this study assessed th...

asian citrus psyllid, diaphorina citri kuwayama, is an important pest of citrus that transmits the bacterial pathogens responsible for citrus greening disease, also called huanglongbing. the aim of the current study was to investigate the shape variations of the forewing among the iranian geographic populations of d. citri, as well as one population from pakistan. the adult psyllids used in thi...