Pseudomonas fluorescens enhances biomass yield and ajmalicine production in Catharanthus roseus under water deficit stress

Jaleel, Cheruth Abdul; Manivannan, P.; Sankar, B.; Kishorekumar, A.; Gopi, R.; Somasundaram, R.; Panneerselvam, R.

doi:10.1016/j.colsurfb.2007.05.012

Cited by 195 publications

(78 citation statements)

References 28 publications

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“…An experiment on the effect of PGPRs on growth parameters and the production of ajmalicine in Catharanthus roseus clearly indicated that P. fl uorescens had a signifi cant infl uence on the improvement of plant growth, number of leaves, and fresh and dry weights and root length under drought stress (Jaleel et al 2007 ). Application of biofertilizer ( Azospirillum brasilienses , A. chroococcum , Bacillus polymyxa , and B. circulans ) on the plant growth, yield, and essential oil composition of Majorana hortensis L. revealed that the treatment of biofertilizers along with compost developed a better plant growth traits, yield, as well as essential oil composition when compared to control or chemical fertilizers (Gharib et al 2008 ).…”

Section: Effect Of Pgprs and Am Fungi On The Growth And Development Omentioning

confidence: 98%

Response of PGPR and AM Fungi Toward Growth and Secondary Metabolite Production in Medicinal and Aromatic Plants

Swamy

Akhtar²,

Sinniah

2016

Plant, Soil and Microbes

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Plant growth-promoting rhizobacteria (PGPRs) are a group of naturally occurring benefi cial soil bacteria that colonize with the plant root system and promote growth by triggering the production of growth-regulating substances and facilitate the plants in the uptake of essential nutrients from the surrounding environments. Similarly, arbuscular mycorrhizal (AM) fungi also enhanced the growth, water and nutrient uptake, and especially available phosphate through their specialized hyphae. In addition, PGPR and AM fungi are known to stimulate the accumulation of secondary metabolites in plants. For several years, they are commonly employed to increase the plant yield and productivity especially in agricultural practices. The medicinal and aromatic plants are gaining popularity worldwide due to high therapeutic properties with negligible toxic side effects. To fulfi ll the global demand and supply gap for medicinal and aromatic plants and their products, farmers are encouraged to cultivate these plants on a large scale. However, there is a need to understand and implement a better cultivation practices in order to improve the quality of medicinal and aromatic plants. In this regard, the utilization of PGPRs and AM fungi as biofertilizers instead of chemical fertilizers could be a promising approach to the development of medicinal and aromatic plants under the sustainable production system. The aim of this chapter is to describe the potentiality of PGPRs and AM fungi to improve growth and development of medicinal and aromatic plants and accumulation of secondary metabolites having high therapeutic worth and also pave a way in the development of new biotechnological products as biofertilizers.

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Section: Effect Of Pgprs and Am Fungi On The Growth And Development Omentioning

confidence: 98%

Response of PGPR and AM Fungi Toward Growth and Secondary Metabolite Production in Medicinal and Aromatic Plants

Swamy

Akhtar²,

Sinniah

2016

Plant, Soil and Microbes

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“…However, inhibition of seed germination has also been recorded when Ambrosia artemisiifolia seeds were inoculated with P. fluorescens (Vrbnicanin et al 2011). Moreover, P. fluorescens has been classified as either deleterious rhizobacteria (DRB) (Zdor et al 2005) or PGPR (Jaleel et al 2007), depending on the experimental conditions in which bacterial cultures develop. Growth promotion and beneficial effects conferred by PGPRs may involve various mechanisms of action.…”

Section: Seed Germination and Vigor Index In Medicinal Plantsmentioning

confidence: 97%

Enhanced Efficiency of Medicinal and Aromatic Plants by PGPRs

et al. 2014

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Other than nutritional value for human and livestock, plants have gained significant attention in recent years due to their secondary metabolites, which are widely used in aromatic, therapeutic, or chemical industries. Higher plants use primary metabolites such as carbohydrates, lipids, and amino acids to synthesize various secondary metabolites that serve a variety of functions including plant defense against herbivores and microbes, protection against environmental stresses, and contribution to specific odors, tastes, and colors in plants (Seigler 1998). Plant secondary metabolites are unique sources for food additives, flavors, fragrances, and pharmaceuticals (Bennett and Wallsgrove 1994; Ravishankar and Rao 2000). Plants accumulate secondary metabolites mostly under stress conditions in response to various biotic and abiotic elicitors or signal molecules. Physiological traits and genetic diversity, environmental conditions, geographic variation, and evolution are among the main factors affecting the accumulation and composition of secondary metabolites (Figueiredo et al. 2008). Moreover, infection by microorganisms and abiotic factors such as osmotic stresses can induce particular secondary metabolite pathways in plants (Sanchez et al. 2004).

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“…application of biological fertilizers led to the improvement of Trigonella foenum-graecum seed germination and plant growth. The results obtained by Abdul-Jaleel et al (2007) indicated that treating Catharanthus roseus seedlings with Pseudomonas fluorescens (a PGPR) increased biomass production as well as alkaloid content under water stress. Shaalan (2005) showed that adding biological fertilizers such as Azotobacter sp., Azospirillum sp., and Pseudomonas sp.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Growth and Yield of Purple Coneflower (Echinacea purpurea L.) in Response to Biological and Chemical Fertilizers

Hajagha¹,

Kirici²,

Tabrizi³

et al. 2017

JAS

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In order to study the effects of biological and chemical fertilizers on quantitative and qualitative yields of purple coneflower, an experiment was carried out during 2010-2012. The morphological traits such as plant height, number of lateral shoots, shoot fresh and dry weight, root fresh and dry weight, number of inflorescences per plant, number of flower buds per plant, and essential oil content and yield were measured. The results showed significant effects of the treatments on the growth parameters. In the second year, the mixture of the three bacteria plus mycorrhizal inoculum improved important parameters such as shoot dry weight (40.42%), root dry weight (60.02%), and number of inflorescences per plant (65.68%). Interestingly, these values were not significantly different from obtained results by the chemical fertilizers. Additionally, the essential oil content in plants treated with the mixture of the three bacteria were 152.14% and 25.11% higher than the control plants in the first and the second year, respectively. The essential oil yield in plants treated with the mixture of the three bacteria was higher than those treated with the chemical fertilizers in two years. The results indicate that using biological fertilizers is a good choice to reduce the use of chemical fertilizers as an important tool to contribute to a sustainable agriculture.

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Pseudomonas fluorescens enhances biomass yield and ajmalicine production in Catharanthus roseus under water deficit stress

Cited by 195 publications

References 28 publications

Response of PGPR and AM Fungi Toward Growth and Secondary Metabolite Production in Medicinal and Aromatic Plants

Response of PGPR and AM Fungi Toward Growth and Secondary Metabolite Production in Medicinal and Aromatic Plants

Enhanced Efficiency of Medicinal and Aromatic Plants by PGPRs

Evaluation of Growth and Yield of Purple Coneflower (Echinacea purpurea L.) in Response to Biological and Chemical Fertilizers

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