Antioxidants in Pinus pinaster roots and mycorrhizal fungi during the early steps of symbiosis
Antioxidants in Pinus pinaster roots and mycorrhizal fungi during the early steps of symbiosis
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DOI：
10.1016/j.indcrop.2012.01.020
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发表时间：
2012-07-01
影响因子：
5.9
通讯作者：
Martins, Anabela
中科院分区：
文献类型：
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作者：
Carocho, Marcio;Ferreira, Isabel C. F. R.;Martins, Anabela
真菌菌丝体和某些植物根部之间的外生菌根共生可能对双方的抗氧化剂水平产生重要影响。在目前的工作中，评估了共培养期对体外菌根化（松树-豆豆和松树-卷曲蜡霉）早期阶段抗氧化特性和抗氧化剂（酚类、生育酚和糖）产生的影响。研究的参数是在每个培养元件（根、菌丝体和培养基）中确定的，以便了解每个伙伴对共生关联的反应。与 P. involutus 相比，R arhizus 与 P. pinaster 的相容性更高，因为后者的抗氧化活性从 48 小时增加到 72 h，而 P. arhizus 的抗氧化性能在同一时期下降（表明氧化应激较少）。尽管事实证明，卷折 P. involutus 不太适合纳入利用菌根化过程的造林计划，但它揭示了在共生的早期步骤中产生生物活性化合物的更高潜力。在第一个 6 小时后获得酚类含量的最大值。 (C) 2012 Elsevier B.V. 保留所有权利。
Ectomycorrhizal symbiosis between fungi mycelia and the roots of some plants could have important effects in the levels of antioxidants of both partners. In the present work, the effects of co-culture period in the antioxidant properties and antioxidants (phenolics, tocopherols and sugars) production during early steps of in vitro mycorrhization (Pinus pinaster-Pisolithus arhizus and Pinus pinaster-Paxillus involutus) were evaluated. The studied parameters were determined in each culture element (root, mycelium and medium) in order to understand the response of each partner to the symbiotic association. R arhizus proved to be more compatible with P. pinaster than P. involutus, since the antioxidant activity in the latter species increased from 48 to 72 h, while P. arhizus antioxidant properties decreased at the same period (indicative of less oxidative stress). Despite P. involutus proved to be less suitable to be included in forestation programs using mycorrhization processes, it revealed a higher potential for bioactive compounds production in the early steps of symbiosis. A maximal value of phenolics content was obtained after the first 6 h. (C) 2012 Elsevier B.V. All rights reserved.