Results 131 to 140 of about 1,599 (173)

‘Candidatus Phytoplasma pini’, a novel taxon from Pinus silvestris and Pinus halepensis

International Journal of Systematic and Evolutionary Microbiology, 2005
Pinus silvestris and Pinus halepensis trees grown in Germany and Spain, respectively, showing abnormal shoot branching, dwarfed needles and other symptoms were examined for the presence of plant-pathogenic mollicutes (phytoplasmas). While phytoplasmas could not be detected unambiguously with microscopical methods, PCR amplification ...
Bernd, Schneider, Ester, Torres, María P, Martín, Manfred, Schröder, Heinz-Dietmar, Behnke, Erich, Seemüller   +5 more
openaire   +2 more sources

Morphological and Physiological Damage by Surfactant-Polluted Seaspray on Pinus pinea and Pinus halepensis

Environmental Monitoring and Assessment, 2005
This paper reports morphological and physiological damage caused by polluted seaspray to coastal pine forests in Liguria (Northern Italy) and suggests the most reliable parameters for surfactant-pollution biomonitoring. Concentrations of surfactants in surface seawater, seaspray, and that deposited on Pinus halepensis and Pinus pinea needles were ...
Giovanni, Nicolotti, Andrea, Rettori, Elena, Paoletti, Maria Lodovica, Gullino   +3 more
openaire   +2 more sources

Effects of chronic gamma-irradiation on Pinus pinea and Pinus halepensis

Radiation Botany, 1967
Abstract A histological analysis has been made on shoot apices of Pinus pinea and Pinus halepensis collected from plants chronically irradiated in the gamma field (60Co source) at exposure rates of 18·8, 9·0, 4·30 and 2·64 R/day up to 1513 days, from plants exposed to 36·2, 20·6, 5·02 and 2·10 R/day and allowed to recover after receiving 1000 and ...
openaire   +1 more source

Isozyme variation and heterozygosity in Pinus halepensis L.

Biochemical Genetics, 1983
The genetic polymorphism of a population of Pinus halepensis was studied using 12 electrophoretically detectable enzyme systems encoded by 7 monomorphic and 10 polymorphic loci. An estimation of population parameters revealed a relatively high average heterozygosity (H = 0.179).
M, Loukas, Y, Vergini, C B, Krimbas
openaire   +2 more sources

Fungi associated with the decline of Pinus halepensis in Spain

Fungal Diversity, 2010
Fungal species richness and composition within needles and twigs in 55 stands of Pinus halepensis, spread out over the whole Iberian Peninsula, were determined. The aim was to evaluate the relationships of fungal communities with local environmental variables, in order to analyze the potential causes of the current decline of this pine species in Spain.
L. Botella, O. Santamaría, J. J. Diez
openaire   +1 more source

Effect of high temperatures on seed germination of Pinus sylvestris and Pinus halepensis

Forest Ecology and Management, 2000
Abstract Fire is one of the most important ecological factors in the Mediterranean forest ecosystems. Most Mediterranean conifers are obligate seeders after fire. Seeds of two conifers species (Pinus sylvestris and Pinus halepensis) were heated to a range of temperatures similar to those registered on surface soil during natural fires (from 70° to ...
M.R Núñez, L Calvo
openaire   +1 more source

Seed germination of Pinus halepensis provenances under NaCl stress

Israel Journal of Plant Sciences, 2004
Pinus halepensis seeds from nine European provenances were germinated in NaCl solutions. Inhibition of germination was not due solely to osmotic effects, but also to ion toxicity, as observed by comparing germination in NaCl to germination in isotonic solutions of polyethylene glycol. The negative ion effect did not vary among provenances.
Calamassi R, Paoletti E
openaire   +4 more sources

SALT STRESS RESPONSES IN PINUS HALEPENSIS

2011
Metapontum Forest Reserve is an artificial formation located between mouths of Bradano and Basento river, it is composed prevalently of Aleppo pine (Pinus halepensis). In recent years, the Metapontum coast is characterized by a strong erosive process which has really removed the dune behind the beach moving in the inland and causing the decline of the ...
Lomaglio Tonia, Satriani Antonio, Verrillo F, RoccoMariaPina   +3 more
openaire   +1 more source

Investigations on bark extractives of Pinus halepensis Mill

Holz als Roh- und Werkstoff, 1985
Extractives were taken from the bark of Pinus halepensis, using water, 1% NaOH and 5% NaOH (with and without sulfonation), with resultant extract yields higher for the NaOH extracts than for those with water only. The NaOH extracts, however, showed lower reactivity.
E. Voulgaridis, A. Grigoriou, C. Passialis   +2 more
openaire   +1 more source

Allelopathic potential of Pinus halepensis needles

2016
The green and mature senescent needles of Pinus halepensis from the Tunisian pine forests of Bizerte, Tabarka, Seliana and Oueslatia were evaluated based on their phytochemicals contents for allelopathic potential on seed germination and seedling growth of radish (Raphanus sativus L.) and wheat (Triticum aestivum L.).
Refifa, T., Chahdoura, H., FLAMINI, GUIDO, Adouni, K., Achour, L., Helal, A.   +5 more
openaire   +1 more source