Stilbene synthase from Scots pine (Pinus sylvestris)

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 (...

Biochemical Plant Responses to Ozone : II. Induction of Stilbene Biosynthesis in Scots Pine (Pinus sylvestris L.) Seedlings.

Formation of the stilbenes pinosylvin and pinosylvin 3-methyl ether, as well as the activity of the biosynthetic enzyme stilbene synthase (pinosylvin-forming), were induced several hundred- to thousandfold in primary needles of 6-week-old pine (Pinus sylvestris L.) seedlings upon exposure to a single pulse of ozone of at least 0.15 microliters per liter. The seedlings required 4 hours of exposu...

Characterization of cDNAs corresponding to two Lhca4 alleles from Scots pine (Pinus sylvestris).

Cytogenetic 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...

NATURAL 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...