Effect of Piriformospora indica and Sebacina vermifera on plant growth and essential oil yield in Thymus vulgaris in vitro and in vivo experiments

Dolatabadi, Hossein Kari; Goltapeh, Ebrahim Mohammadi; Moieni, Ahmad; Jaimand, Kamkar; Sardrood, Babak Pakdaman; Varma, Ajit

doi:10.1007/s13199-010-0104-0

Cited by 33 publications

(18 citation statements)

References 35 publications

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“…In contrast to our results, two studies showed that S. indica colonized herbs, such as fennel and Thymus vulgaris , harbor higher amounts of essential oil ( Dolatabadi et al, 2011a , b ). As we mentioned above, the effects of S. indica are very host dependent.…”

Section: Discussioncontrasting

confidence: 99%

Beneficial Root Endophytic Fungi Increase Growth and Quality Parameters of Sweet Basil in Heavy Metal Contaminated Soil

et al. 2018

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How interactions between plants, the rhizosphere, and contaminated soil affect environmental sustainability is still under research. We tested the effects of two root endophytic fungi, the arbuscular mycorrhiza fungus (AMF) Rhizophagus irregularis and the beneficial endophyte Serendipita indica, on sweet basil (Ocimum basilicum) growing on soil contaminated with lead and copper in a pot experiment under defined greenhouse conditions. Both fungi caused an increase in shoot and root dry weight of sweet basil plants under all conditions and decreased the amount of lead in shoots. The amount of copper was reduced by S. indica, while the AM fungus showed this effect only when the soil is contaminated with both copper and lead. Furthermore the AMF, but not the endophyte S. indica caused a strong increase on the concentrations of the essential oils linalool and eucalyptol even on sweet basil growing on contaminated soils. Hence, cultivating sweet basil in combination with beneficial fungi in case of difficult environmental conditions could be of interest for industry located in countries with widespread land pollution, because quantity and quality of plants are increased while the amount of heavy metals is generally reduced.

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Section: Discussioncontrasting

confidence: 99%

Beneficial Root Endophytic Fungi Increase Growth and Quality Parameters of Sweet Basil in Heavy Metal Contaminated Soil

et al. 2018

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“…Colonization of roots by fungi has various positive effects on host performance through higher chlorophyll content [30], higher relative water content (RWC) along with greater absorption of water and mineral nutrients [10], moreover increasing the production of growth-promoting substances [4,10], like synthesis of phytohormones [22]. Our results show that endophytic fungi helped basil to ameliorate the negative effects of salt stress, which was more obvious at higher levels of salinity.…”

Section: Discussionmentioning

confidence: 71%

Essential oil composition of sweet basil (Ocimum basilicum L.) in symbiotic relationship with Piriformospora indica and paclobutrazol application under salt stress

Keramati

Pirdashti

Babaeizad

et al. 2016

Acta Biologica Hungarica

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Essential oil content and oil composition of paclobutrazol treated sweet basil (Ocimum basilicum L.) plant inoculated with Piriformospora indica under salt stress were investigated by GC-MS. The results show a slight increase in essential oil content when basil plants subjected to moderate salinity stress (3 dS m -1 of NaCl). It decreased significantly with increasing salinity level to 9 dS m -1 . The findings revealed that leaf area, above ground and leaf dry weights, essential oil content and yield were significantly affected by P. indica inoculation, however paclobutrazol application significantly influenced essential oil yield but not content. Fungal symbiosis as well as paclobutrazol application ameliorated the negative effects of salinity on dry matter and essential oil yield. The main constituents found in the volatile oil of O. basilicum in control treatment were Geranial (26.03%), Neral (24.88%) and Estragole (24.78%). The compounds concentrations showed some differences in P. indica and paclobutrazol treatments. The results demonstrate that micorrhiza-like fungi concomitantly increase essential oil production and biomass in sweet basil, a medicinal herb rich in commercially valuable essential oils.

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“…However, PGP endophytes such as P . indica [ 44 ] and PGP-HSF [ 45 , 46 ], increased more the fresh than the dry biomasses of Thymus vulgaris and Mentha piperita , respectively, while in other cases the influence of endophytes on the % in DW and FW were rather similar [ 44 , 47 ]. Thus, the increase in the DW unrelated to FW observed in our work (SL23, ST2, RT6c and RT10; compare Figs 1b and 3b ) is difficult to explain.…”

Section: Discussionmentioning

confidence: 99%

In Vitro Morphogenesis of Arabidopsis to Search for Novel Endophytic Fungi Modulating Plant Growth

et al. 2015

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Fungal endophytes have shown to affect plant growth and to confer stress tolerance to the host; however, effects of endophytes isolated from water plants have been poorly investigated. In this study, fungi isolated from stems (stem-E) and roots (root-E) of Mentha aquatica L. (water mint) were identified, and their morphogenetic properties analysed on in vitro cultured Arabidopsis (L.) Heynh., 14 and 21 days after inoculation (DAI). Nineteen fungi were analysed and, based on ITS analysis, 17 isolates showed to be genetically distinct. The overall effect of water mint endophytes on Arabidopsis fresh (FW) and dry weight (DW) was neutral and positive, respectively, and the increased DW, mainly occurring 14 DAI, was possibly related to plant defence mechanism. Only three fungi increased both FW and DW of Arabidopsis at 14 and 21 DAI, thus behaving as plant growth promoting (PGP) fungi. E-treatment caused a reduction of root depth and primary root length in most cases and inhibition-to-promotion of root area and lateral root length, from 14 DAI. Only Phoma macrostoma, among the water mint PGP fungi, increased both root area and depth, 21 DAI. Root depth and area 14 DAI were shown to influence DWs, indicating that the extension of the root system, and thus nutrient uptake, was an important determinant of plant dry biomass. Reduction of Arabidopsis root depth occurred to a great extent when plants where treated with stem-E while root area decreased or increased under the effects of stem-E and root-E, respectively, pointing to an influence of the endophyte origin on root extension. M. aquatica and many other perennial hydrophytes have growing worldwide application in water pollution remediation. The present study provided a model for directed screening of endophytes able to modulate plant growth in the perspective of future field applications of these fungi.

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Effect of Piriformospora indica and Sebacina vermifera on plant growth and essential oil yield in Thymus vulgaris in vitro and in vivo experiments

Cited by 33 publications

References 35 publications

Beneficial Root Endophytic Fungi Increase Growth and Quality Parameters of Sweet Basil in Heavy Metal Contaminated Soil

Beneficial Root Endophytic Fungi Increase Growth and Quality Parameters of Sweet Basil in Heavy Metal Contaminated Soil

Essential oil composition of sweet basil (Ocimum basilicum L.) in symbiotic relationship with Piriformospora indica and paclobutrazol application under salt stress

In Vitro Morphogenesis of Arabidopsis to Search for Novel Endophytic Fungi Modulating Plant Growth

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