منابع مشابه
Characterization of a Lhcb5 cDNA from Scots pine (Pinus sylvestris).
Despite extensive studies on the LHC proteins of PSI and PSII (for review, see Jansson, 1994), the detailed polypeptide composition of LHC I and LHC I1 has not been understood until recently. The nature of the Lhcb5 gene product has been one of the major uncertainties, since it has been identified both as the CP26 (or the equivalent complex LHCIIc) polypeptide and one of two CP29 polypeptides (...
متن کاملFungal Infection Increases the Rate of Somatic Mutation in Scots Pine (Pinus sylvestris L.).
Somatic mutations are transmitted during mitosis in developing somatic tissue. Somatic cells bearing the mutations can develop into reproductive (germ) cells and the somatic mutations are then passed on to the next generation of plants. Somatic mutations are a source of variation essential to evolve new defense strategies and adapt to the environment. Stem rust disease in Scots pine has a negat...
متن کاملEthylene metabolism in Scots pine (Pinus sylvestris) shoots during the year.
Ethylene evolution, concentrations of 1-aminocyclopropane-1-carboxylic acid (ACC) and ACC conjugates, activities of ACC synthase and ACC oxidase, and cambial growth as measured by tracheid production were monitored from November to July in 1-year-old shoots, and between July and September in current-year shoots, of Scots pine (Pinus sylvestris L.). Needles, buds and four stem parts (cortex, phl...
متن کاملCytogenetic response of Scots pine (Pinus sylvestris Linnaeus, 1753) (Pinaceae) to heavy metals
We studied cytogenetic reactions of Scots pine seedlings to heavy metals - lead, cupric and zinc nitrates applied at concentrations 0.5 to 2000 µM. We determined the range of concentrations of heavy metals that causes mutagenic effect. Lead was found to cause the strongest genotoxicity as manifested by significant increase in the frequency of pathological mitosis, occurrence of fragmentations a...
متن کاملNATURAL WEATHERING OF SCOTS PINE (Pinus sylvestris L.) BOARDS MODIFIED WITH FUNCTIONALISED COMMERCIAL SILICONE EMULSIONS
A quat-silicone micro-emulsion (particle size <40 nm), an amino-silicone macro-emulsion (110 nm), and an alkyl modified silicone macro-emulsion (740 nm) were used to modify Scots pine (Pinus sylvestris L.) sapwood. Treated and uncoated boards were exposed to natural weathering for one year along with water treated controls according to EN 927-3. The treatment with silicone emulsions did not enh...
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ژورنال
عنوان ژورنال: Nature
سال: 1944
ISSN: 0028-0836,1476-4687
DOI: 10.1038/154679b0