Author:
García-Latorre C.,Rodrigo S.,Marin-Felix Y.,Stadler M.,Santamaria O.
Abstract
AbstractEndophytic fungi have been demonstrated to produce bioactive secondary metabolites, some of which promote plant growth. Three endophytic fungi isolated from healthy plants living in dehesas of Extremadura (Spain) were identified and evaluated for their ability to produce phytohormone-like substances, antioxidant activity, total polyphenol content, phosphate solubilization ability and siderophore and ammonia production. The filtrates and extracts produced by the three endophytes were applied to Lolium multiflorum seeds and seedlings under both in vitro and greenhouse conditions, to analyse their influence on plant growth traits such as germination, vigour index, chlorophyll data, number and length of leaves and roots, and dry weight. All three endophytes, which were identified as Fusarium avenaceum, Sarocladium terricola and Xylariaceae sp., increased the germination of L. multiflorum seeds by more than 70%. Shoot and root length, plant dry weight and the number of roots were positively affected by the application of fungal filtrates and/or extracts, compared with controls. The tentative HPLC–MS identification of phytohormone-like substances, such as gibberellin A2 and zeatin, or the antioxidant acetyl eugenol, may partially explain the mechanisms of L. multiflorum plant growth promotion after the application of fungal filtrates and/or extracts.
Funder
Regional Government of Extremadura (Spain) and by the European Social Fund
Publisher
Springer Science and Business Media LLC
Reference91 articles.
1. Ye, L. et al. Bio-organic fertilizer with reduced rates of chemical fertilization improves soil fertility and enhances tomato yield and quality. Sci. Rep. 10, 1–11 (2020).
2. Zhou, S. et al. Potentially toxic trace element pollution in long-term fertilized agricultural soils in China: a meta-analysis. Sci. Total Environ. 789, 147967 (2021).
3. Olea, L. & Miguel-Ayanz. A. The Spanish dehesa. A traditional Mediterranean silvopastoral system linking production and nature conservation. In 21st Gen Meet Eur Grassl Fed 1–15 (2006).
4. Escribano, M., Díaz-Caro, C. & Mesias, F. J. A participative approach to develop sustainability indicators for dehesa agroforestry farms. Sci. Total Environ. 640–641, 89–97 (2018).
5. Linares, A. M. Forest planning and traditional knowledge in collective woodlands of Spain: the dehesa system. For. Ecol. Manage. 249, 71–79 (2007).
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献