This study analyzes the content and chemical profile of extractives present in the young phloem of mature trees of maritime pine (Pinus pinaster) and stone pine (P. pinea) in three sites in Portugal located in different climatic environments.

The cross-sites average of extractives was similar in both pines with 38.5% in P. pinea and 37.7% in P. pinaster phloem. The hydrophilic fraction represented 82% and 70% of P. pinea and P. pinaster total extractives respectively, with large contents of phenolic compounds, flavonoids and tannins, and showed very high oxygen scavenging and reducing ability. Lipophilic extractives were present in higher proportion in P. pinaster phloem than in P. pinea phloem, and showed a large content of resin acids, with the predominance of abietic acid in P. pinaster, and dehydroabietic acid in P. pinea phloems, and of alkanoic acids.

P. pinaster and P. pinea have specific defences related to phloem production of resin and phenolic compounds with the ratio phenolic-to-oleoresin compounds higher for P. pinea (4.7 vs 2.3 for P. pinaster) and constant in the three sites. The phytochemical content and composition of the young phloem of P. pinaster and P. pinea showed site differences highlighting the relationship between environment and metabolic production.

这项研究分析了葡萄牙三个地点不同气候环境中的海生松（Pinus pinaster）和石松（P. pinea）的成熟树幼嫩韧皮部中提取物的含量和化学特征。

交叉点平均提取物的做法与38.5％都松树类似P. pinea和37.7％P.松树韧皮部。亲水级分分别占松果和松果总提取物的82％和70％，其中酚类化合物，类黄酮和丹宁酸的含量较高，并表现出很高的除氧和还原能力。亲油性抽提物中存在较高比例P.海岸松韧皮部比P. pinea韧皮部，并且显示的树脂酸含量大，与松香酸的中占主导地位P.海岸松，并在脱氢枞酸P. pinea韧皮部，以及链烷酸。

P.海岸松和P. pinea具有与韧皮部的生产与用于比酚醛到油树脂化合物高树脂和酚类化合物的具体防御P. pinea（4.7 VS 2.3 P.海岸松）和恒定的三个位点。年轻韧皮部的植物化学物质的含量和组成P.松树和P. pinea显示网站的差异突出的环境和代谢生产之间的关系。