Climate warming is expected to lengthen the growing season of tree species and enhance radial growth rates. Alternatively, a longer could not lead improved if wood production depends more on rate than length. We test these ideas by comparing leaf phenology data estimated start end dates formation predicted VS-Lite model. analyzed long-term series unfolding fall reconstructed two pine under cont...

We have isolated and characterized a new repetitive sequence, TAS49, from terminal restriction fragments of Nicotiana tomentosiformis genomic DNA by means of a modified vectorette approach. The TAS49 was found directly attached to telomeres of N. tabacum and one of its ancestors, N. tomentosiformis, and also at inner chromosome locations. No association with telomeres was detected neither in N....

The grape is one of the earliest domesticated fruit crops and, since antiquity, it has been widely cultivated and prized for its fruit and wine. Here, we characterize genome-wide patterns of genetic variation in over 1,000 samples of the domesticated grape, Vitis vinifera subsp. vinifera, and its wild relative, V. vinifera subsp. sylvestris from the US Department of Agriculture grape germplasm ...

OBJECTIVES Wild edible plants (WEP) play the dual role of securing food diversity and promoting health in traditional societies. Current simplified dietary habits contribute to increasing population health risks. Since WEP are integral to the diet of traditional communities, identifying their significance as foods to people provides further evidence to conserve them and promote their consumptio...

Understanding how pathogens emerge is essential to bring disease-causing agents under durable human control. Here, we used cross-pathogenicity tests to investigate the changes in life-history traits of the fungal pathogen Venturia inaequalis associated with host-tracking during the domestication of apple and subsequent host-range expansion on the wild European crabapple (Malus sylvestris). Path...

Casearia genus (Salicaceae) is found in sub-tropical and tropical regions of the world and comprises about 160-200 species. It is a medicinal plant used in South America, also known as "guaçatonga", "erva-de-tiú", "cafezinho-do-mato". In Brazil, there are about 48 species and 12 are registered in the State of Rio de Janeiro, including Casearia sylvestris Sw. There are many studies related to th...

Pine wilt disease, caused by the pinewood nematode Bursaphelenchus xylophilus (Steiner and Buhrer) Nickle, is originating severe infections in pine trees. The disease is detected when external symptoms appear (e.g. needle chlorosis), but trees could remain asymptomatic for long periods and serve as a long-term host. The primary goal of this study was to assess the effect of inoculation with an ...

On two occasions, with a 10or 11-year interval, species occurring in 650 plots (100 m) in boreal production forests in Sweden were recorded within a monitoring program. During this interval, many of the plots had been subjected to varying degrees of timber extraction. The presence of 49 vascular plant species or species groups was recorded and we evaluated how species number varied over time. T...

The xylem hydraulic efficiency and safety is usually measured on mechanically unstressed samples, although trees may be exposed to combined hydraulic and mechanical stress in the field. We analysed changes in hydraulic conductivity and vulnerability to drought-induced embolism during static bending of Picea abies and Pinus sylvestris branches as well as the effect of dynamic bending on the vuln...