Plant growth promoting rhizobacteria in an ecological cropping system: A study on basil (Ocimum basilicum L.) essential oil production

Tahami, Mohammad Kazem; Jahan, Mohsen; Khalilzadeh, H.; Mehdizadeh, Mohammad

doi:10.1016/j.indcrop.2017.05.020

Cited by 42 publications

(22 citation statements)

References 22 publications

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“…Biological fertilizers, especially in water deficit conditions, can improve root growth and the assimilation of photosynthates due to the increased leaf area and higher photosynthesis capacity at the pre-flowering period [21]. On the other hand, by the retention of water, manure provides an appropriate environment for the activity of the bacteria and the uptake of chemical fertilizers [22].…”

Section: Agrobiological Propertiesmentioning

confidence: 99%

The Influence of Chemical, Organic and Biological Fertilizers on Agrobiological and Antioxidant Properties of Syrian Cephalaria (Cephalaria Syriaca L.)

et al. 2019

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Since chemical fertilizers pollute soil, water and crops, conscientious agricultural producers seek alternatives to chemical fertilizers. Biological fertilizers are considered a reliable alternative for improving soil productivity and plant growth in sustainable agriculture. The response of some agrobiological and antioxidant properties of Syrian cephalaria (Cephalaria syriaca L.) to different fertilizer sources was explored in an experiment which included: (i) mycorrhiza + manure; (ii) mycorrhiza + vermicompost; (iii) mycorrhiza + Azotobacter; (iv) mycorrhiza + chemical fertilizer; (v) mycorrhiza; and (vi) control. The results showed that the highest seed yield, biological yield, oil percentage yield, were observed in plants treated with mycorrhiza + vermicompost, whereas the highest 1000-seed weight was obtained from the application of mycorrhiza + manure. With respect to photosynthesizing pigments, the application of mycorrhiza + vermicompost increased chlorophyll a, chlorophyll b, total chlorophyll, carotenoid content as well as total phenols, total flavonoids and DPPH antioxidant activity as compared to control (unfertilized) plants. The mixed application of different fertilizer sources influenced the uptake of trace elements (Fe, Zn and Cu) optimally. In the light of the obtained results for the agrobiological and antioxidant properties of Syrian cephalaria, in most of the measured traits, there is no significant difference between manure, vermicompost and chemical fertilizers in combination with mycorrhiza. Hence the use of organic and biological inputs instead of chemical fertilizer for improving crop efficiency and quality with the aim of alleviating pollution and accomplishing sustainable agriculture is highly encouraging.

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Section: Agrobiological Propertiesmentioning

confidence: 99%

The Influence of Chemical, Organic and Biological Fertilizers on Agrobiological and Antioxidant Properties of Syrian Cephalaria (Cephalaria Syriaca L.)

et al. 2019

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“…When the Bacilus spp. is applied in the production, it's verified the increase on the radicular system and better usefulness of the essential oil (Tahami et al, 2017).…”

Section: Influence Of Microrganisms On Phytochemical Compositionmentioning

confidence: 83%

“…Microorganisms (fungi and bacterium) applied in the cultivation of medicinal plants in vivo (Table 2) had great influence on plant growth and development, photosynthetic rate, production of secondary metabolites, abiotic stress tolerance and increased synthesis of active compounds (Aseri et al, 2008;Shahmohammadi et al, 2014;Akhazari et al, 2015;Tahami et al, 2017).…”

Section: Influence Of Microrganisms On Phytochemical Compositionmentioning

confidence: 99%

“…In this review, we verified the use of different genera of microorganisms such as Bacillus spp., Azotobacter spp. and Azospirillum spp., heterotrophic and nitrogen-fixing aerobic bacterium, being that Azospirillum genera (facultative endophytes) the most commonly applied on the plants (Mohammad et al, 2012;Shahmohammadi et al, 2014;Tahami et al, 2017).…”

Section: Influence Of Microrganisms On Phytochemical Compositionmentioning

confidence: 99%

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Humic Substances and Efficient Microorganisms: Elicitation of Medicinal Plants—A Review

Pereira¹,

Morais²,

Marques³

et al. 2019

JAS

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In function of the green revolution the indiscriminate use of agrochemicals and pesticides in agriculture has been also shown in the production of medicinal plants, resulting in the increase of productivity but with high residual contamination and low rates in the production of secondary metabolites responsible for the biological and pharmacological activity in vegetable drugs. In another hand, new techniques of elicitation has been applied to stimulate the medicinal plants production through the organic and agroecological management, contributing for the increase of performance, quality and production. In this context, it is aimed with this review to present such as the humic substances: fulvic acid, humic acid and efficient microorganisms which influence and help the ontogeny and the secondary metabolites production of medicinal plants. The reviewed articles show that the use of fulvic acid, humic acid and efficient microorganisms in the production of medicinal plants contributes on the increase of biosynthesis, secondary metabolites production such as coumarins, alkaloids, phenylpropanoids and essential oils, as well as the increase of nutrients absorption, growth and development of species.

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“…2016; Tahami et al . 2017). This metabolism can increase nitrogen availability in soil providing conditions for protein synthesis.…”

Section: Discussionmentioning

confidence: 99%

Bacterial inoculation positively affects the quality and quantity of flax under deficit irrigation regimes

Rajabi-Khamseh

Shahraki

Rafieiolhossaini

et al. 2020

J. Appl. Microbiol.

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Aim The present research was conducted to investigate the effect of plant growth‐promoting rhizobacteria (PGPR) and deficit irrigation on quality and quantity of flax under field and pot conditions to determine bacterial efficiency and to decrease water deficit effects. Methods and Results Initially, in vitro experiments were performed to determine the growth‐promoting characteristics of bacteria. Then in the field, the effects of bacterial inoculation (control, Azotobacter chroococcum, Azospirillum lipoferum, Bacillus amyloliquefaciens, Bacillus sp. strain1 and Pseudomonas putida) on flax traits were evaluated at different irrigation levels (100, 75 and 50% crop water requirement). Bacterial treatments in the pot experiment were selected based on the field experiment results. The irrigation regimes in the pot and field experiments were the same and bacterial treatments included single, doublet and triplet applications of the bacteria. All the bacterial strains could solubilize phosphate, produce ammonia (except for Bacillus sp. strain1), indole acetic acid and siderophore (except P. putida). Field results indicated that the bacteria significantly mitigated the effects of water deficit. Compared with control plants, bacterial treatments increased the oil, linolenic acid, protein and sulphur content; the number of shoots and capsules; and the harvest index in the flax plants. Pot experimental results revealed that the combined inoculations were more effective than single inoculum treatments. Conclusions Bacterial inoculation alleviates deficit irrigation effects in flax plants. Significance and Impact of the Study The effectiveness of applying A. chroococcum, B. amyloliquefaciens and Bacillus sp. strain1 was confirmed, especially as a combination to protect flax against water deficit and to improve its nutritional quality and growth.

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Plant growth promoting rhizobacteria in an ecological cropping system: A study on basil (Ocimum basilicum L.) essential oil production

Cited by 42 publications

References 22 publications

The Influence of Chemical, Organic and Biological Fertilizers on Agrobiological and Antioxidant Properties of Syrian Cephalaria (Cephalaria Syriaca L.)

The Influence of Chemical, Organic and Biological Fertilizers on Agrobiological and Antioxidant Properties of Syrian Cephalaria (Cephalaria Syriaca L.)

Humic Substances and Efficient Microorganisms: Elicitation of Medicinal Plants—A Review

Bacterial inoculation positively affects the quality and quantity of flax under deficit irrigation regimes

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