Tolerance of Trichoderma sp to Heavy Metals and its Antifungal Activity in Algerian Marine Environment
Tolerance of Trichoderma sp to Heavy Metals and its Antifungal Activity in Algerian Marine Environment
复制标题
DOI：
10.22207/jpam.12.2.48
复制
发表时间：
2018-06-01
影响因子：
0.8
通讯作者：
Boutiba, Zitouni
中科院分区：
文献类型：
--
作者：
Ayad, Farah;Matallah-Boutiba, Amaria;Boutiba, Zitouni
阿尔及利亚西部的废物线是任何形式的污染的垃圾场。因此，采样地点是港口，也靠近城市垃圾，庇护了各种各样的真菌种群。通过海水取样，筛选了235种真菌对Pb、Zn、Cd和Cu的吸附行为。研究了14株木霉菌株对不同浓度（Pb、Zn、Cd和Cu）重金属胁迫的耐受性。木霉的暴露浓度为（0 - 4000 mg/l）。重金属的存在对生物量造成的压力仍然很小。在我们的研究中，在高浓度的金属中已经证明了最大的最佳生长。真菌在金属溶液培养中逐渐扩大。200 mg/l时鲜重为1.89 g， 2000 mg/l时鲜重为0.556 g。在锌（Zn So(4)）溶液中，菌丝体在600 mg/l的浓度下生长，其重量达到0.97 Gr。在铜（Cu So(4)）溶液中，菌丝体的生长最小，在2000 mg/l的浓度下生长，达到0.046 Gr。木霉表现出重要的耐受性潜力，其生长和保持与其他真菌不同；结果表明，木霉具有较强的重金属脱毒能力，生物修复策略可提高污染区的治理效果。
Western Algerian waste line is a dump of any form of pollution. Therefore sampling sites are ports, also close to urban waste which shelter a wide variety of fungal population. After seawater samplings, isolation we screened 235 kind of fungi for their behaviors with (Pb, Zn, Cd and Cu). Fourteen Trichoderma sp. isolates were evaluated for their tolerance to heavy metals stress at different concentrations of (Pb, Zn, Cd and Cu). Trichoderma sp. was exposed to concentrations between (0 - 4000 mg/l). The stress of biomass caused by the presence of heavy metals remains minimal. Maximum optimal growth has been demonstrated in our study at high concentrations of metals. Fungi expand gradually in cultures of metallic solutions. Its fresh weight reached 1, 89 Gr on 200 mg/l and 0,556Gr on 2000 mg/l. In the Zinc (Zn So(4)) solution the mycelium will grow mostly on 600 mg/l his weight achieved 0,97 Gr. Development in copper (Cu So(4)) solution is minimal, the fungi has pushed on 2000 mg/l to reach 0,046Gr. The Trichoderma sp. show an important potential of tolerance, it growth and stays different comparing to others fungus; The results emphasized the heavy metals detoxification abilities of Trichoderma sp. Bioremediation strategy could enhance the treatment of contaminated areas.