Results 61 to 70 of about 72,539 (264)
Programmed cell death and genetic stability in conifer embryogenesis [PDF]
, 2007 Somatic embryogenesis, the generation of embryos from somatic cells, is a valuable tool for studying embryology. In addition, somatic embryos can be used for large-scale vegetative propagation, an application of great interest for forestry.
Helmersson, Andreas
core
Recent advances in exploring physiology and biodiversity of ectomycorrhizas highlight the functioning of these symbioses in ecosystems [PDF]
, 2000 Ectomycorrhizas, the dominating mycorrhizal symbiosis in boreal, temperate and some tropical forests, are formed by 5000-6000 species of the asco- and basidiomycetes.
Buscot, François +5 more
core +1 more source
Community dynamics of lignicolous lichens on standing deadwood in a 275‐year chronosequence
Oikos, EarlyView.Dead trees provide discrete habitat patches in which patch quality changes gradually due to wood decomposition. Although in most cases these patches persist for not more than a few decades, in some ecosystems deadwood decomposition and the consequent change in habitat patch quality can be a centuries‐long process, potentially leading to dynamics of ...
Aleksi Nirhamo +4 more
wiley +1 more source
Effect of technique and darkness on the success of meristem micrografting of Picea abies [PDF]
, 1994 The possibility of micrografting in vitro shoot meristems of #Picea abies# were investigated on a 18 year-old Norway spruce clone. The rates of success were shown to be greatly influenced by the grafting technique used and by light, with a positive ...
Monteuuis, Olivier
core
Natural and anthropogenic forest fires recorded in the Holocene pollen record from a Jinchuan peat bog, northeastern China [PDF]
, 2008 Pollen and charcoal particles from a Jinchuan peat (northeastern China) were examined to investigate the fire origin and interaction between climate, vegetation, fire and human activity during the Holocene.
Chu, G +5 more
core +1 more source
Tracing change in the public perception of plants: insights from archives and social media in China
PLANTS, PEOPLE, PLANET, EarlyView.As urbanization accelerates, historic gardens serve as vital cultural treasures that offer spiritual and cultural support to the public. This study proposes an innovative approach that merges historical records from the Qing Dynasty with contemporary social media data to explore changes in public perceptions of these gardens.
Dong Xu +4 more
wiley +1 more source
Umbelliferone in Needles of Picea abies *
Zeitschrift für Naturforschung C, 1980 Abstract A compound showing blue fluorescence under UV-light was isolated from spruce needles and identified as umbelliferone. Structure analysis was based on UV and mass spectroscopy as well as chromatographic comparison with authentic material. Quantitative evaluation by direct measurement of the fluorescence of the umbelliferone spot
Hermann Esterbauer +2 more
openaire +1 more source
Pest Management Science, EarlyView.Ips typographus showed lower reproductive output in an occasional host (Pinus sylvestris) under laboratory conditions, and did not prefer its main host (Picea abies) over P. sylvestris in two‐choice bioassays. Abstract BACKGROUND The Eurasian spruce bark beetle, Ips typographus, is one of the most serious pests of Norway spruce (NS, Picea abies), with ...
Jana Gabriele Burchards +2 more
wiley +1 more source
Modern Abies, Picea, and Tsuga pollen distribution along the elevation gradient in East Asia
Global Ecology and ConservationSub-alpine dark coniferous forests (SCFs) exhibit distinct latitudinal and longitudinal elevation distributions in East Asia. The SCF genera Abies, Picea, and Tsuga produce distinctive pollen and have specific elevation and climate requirements, allowing
Anning Cui +4 more
doaj +1 more source
Barssia oregonensis found in the Tatra Mountains (Poland)
Acta Mycologica, 2014 The first European find of Barssia oregonensis Gilk. (Hypogeous Ascomycetes) is reported from the Tatra Mountains. The fungus has been found in the Picea abies forest in the calcareous soil.
Maria Ławrynowicz, Alina Skirgiełło
doaj +1 more source