期刊
BIOCHEMICAL SYSTEMATICS AND ECOLOGY
卷 36, 期 10, 页码 766-771出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bse.2008.08.006
关键词
Plant growth promoting rhizobacteria; PGPR; Aromatic plants; Origanum majorana; Sweet marjoram; Essential oil
资金
- Secretaria de Ciencia y Tecnica de la Universidad Nacional de Rio Cuarto
- Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET)
- Agencia Nacional de Promocion Cientifica y Tecnologica (ANPCyT)
Effects of root colonization by plant growth promoting rhizobacteria (PGPR) on biomass, and qualitative and quantitative composition of essential oils, were determined in the aromatic crop Origanum majorana L. (sweet marjoram). PGPR strains evaluated were Pseudomonas fluorescens, Bacillus subtilis, Sinorhizobium meliloti, and Bradyrhizobium sp. Only P. fluorescens and Bradyrhizobium sp. showed significant increases in shoot length, shoot weight, number of leaf, number of node, and root dry weight, in comparison to control plants or plants treated with other PGPR. Essential oil yield was also significantly increased relative to non-inoculated plants, without alteration of oil composition. P. fluorescens has clear commercial potential for economic cultivation of O. majorana. (C) 2008 Elsevier Ltd. All rights reserved.
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