Modulation of physiological activities, active constituents and essential oil production of <i>Mentha arvensis</i> L. by concomitant application of depolymerised carrageenan, triacontanol and 28-homobrassinolide

Naeem, M.; Aftab, Tariq; Idrees, Mohd.; Singh, Man Mohan; Ali, Akbar; Khan, M. Masroor A.; Uddin, Moin; Varshney, Lalit

doi:10.1080/10412905.2016.1213188

Cited by 25 publications

(17 citation statements)

References 27 publications

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“…In that study, plants grown from bulbs coated with chitooligosaccharide and gellan gum featured increased content of total polyphenols, l -ascorbic acid, and antioxidant activity. Similarly, an application of degraded polysaccharides enhanced the accumulation of some polyphenolic compounds with potential antimicrobial activity in Eucalyptus globulus [ 55 ], total phenolics in Mentha arvensis [ 58 ], and artemisinin in Artemisia annus [ 59 ], as well as increasing essential oil yield and the content of active constituents in Foeniculum vulgare [ 60 ]. Our current knowledge does not offer comprehensive answers to the question of how the degraded polysaccharides affect plant metabolism.…”

Section: Discussionmentioning

confidence: 99%

Exopolysaccharide Gellan Gum and Derived Oligo-Gellan Enhance Growth and Antimicrobial Activity in Eucomis Plants

2018

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One of the visible trends in the cultivation of plants, particularly of medicinal ones, is the increasing interest of researchers in polysaccharides and their derivatives that show biostimulatory properties and are also safe to use. In the current study, we evaluated the effects of gellan gum and its depolymerized form oligo-gellan, on growth and antimicrobial activity of two ornamental species Eucomis bicolor and Eucomis comosa used in natural medicine. The biopolymers were applied in the form of bulb coating prepared by using polyelectrolyte complexes. In both species investigated, gellan gum and oligo-gellan enhanced the fresh weight of leaves and bulbs, the performance of the photosynthetic apparatus, and the leaf content of basic macronutrients. In comparison with the control, the plants treated with oligo-gellan accumulated more biomass, were first to flower, and had the highest leaf content of potassium. The extracts from the bulbs treated with gellan gum and oligo-gellan showed higher effectiveness in reducing the count of Bacillus atrophaeus, Escherichia coli, and Staphylococcus aureus than those from the bulbs not treated with the polysaccharides. The research described here largely expands our current knowledge on the effects of gellan gum derivatives and has a huge practical potential in agriculture production.

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Section: Discussionmentioning

confidence: 99%

Exopolysaccharide Gellan Gum and Derived Oligo-Gellan Enhance Growth and Antimicrobial Activity in Eucomis Plants

2018

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“…Low-molecularweight oligomers obtained by irradiation-mediated depolymerization of the natural polysaccharides (such as sodium alginate, chitosan, and carrageenan) have been reported to act as plant growth promoting substances and are believed to act in the same way as PGPs (El-Rehim, 2006;Mollah et al, 2009;Aftab et al, 2016;Dar et al, 2016;Idrees et al, 2016;Ahmad et al, 2017;Naeem et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Regulation of functional activities and essential oil production in Vetiveria zizanioides L. Nash after γ-irradiated sodium alginate elicitation

Shabbir¹,

Khan²,

Sadiq³

et al. 2017

Turk J Biol

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Upon irradiation, marine polysaccharides undergo depolymerization, leading to formation of oligosaccharides that elicit various biological activities in plants. Taking a step further on the previously established growth-promoting activity of irradiated sodium alginate (ISA), structural rearrangements in ISA were analyzed using complementary techniques to develop an understanding of the structure-property relationship. The essential oil (EO) of vetiver (Vetiveria zizanioides L. Nash) immensely benefits the perfumery industry, proving itself as an economically important crop. A pot experiment was designed to test the effect of water-soluble ISA fractions on the growth, physiology, and EO production of vetiver. The structural characterization of radiation-induced sodium alginate was carried out using SEM, FT-IR, and UV-Vis spectroscopy. Of the various treatments employed, ISA-120 (ISA applied at 120 mg L -1 ) proved the best for most of the parameters studied, including fresh and dry weight of plants and photosynthetic attributes. As compared to the control (water-spray treatment), foliar feeding of ISA-120 resulted in an increase of 21.2% in chlorophyll content, while this treatment enhanced the chlorophyll fluorescence by 21.8% at 300 days after transplanting. Application of ISA-120 also increased the EO content by 21.1% and EO yield by 47.6%. Gas chromatography revealed an increase of 30.1% and 92.6% in the values of content and yield of khusimol, respectively, over the control.

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“…The present results are in conformity with the earlier findings which reported the ICA-mediated increase in photosynthetic parameters viz . stomatal conductance, PSII efficiency, chlorophyll a and b content, and RuBisCo activity [ 11 , 16 , 42 , 43 ]. Drought stress also resulted in reduced activities of NR ( Fig 2C ) and CA ( Fig 2B ).…”

Section: Discussionmentioning

confidence: 99%

“…Application of RPPs, viz. irradiated forms of carrageenan, alginate, chitin, and chitosan, have been reported to induce various kinds of bioactivities such as augmentation of plant growth and productivity, amelioration of anti-microbiological activities in plants and suppression of heavy metal stress [ 3 – 11 ]. It is a novel and emerging technology in the field of agricultural sciences to exploit complete genetic potential of crop plants in terms of growth, yield, and quality.…”

Section: Introductionmentioning

confidence: 99%

“…As per reports, foliar application of ICA enhanced the length of root in potato [ 12 ], shoot and root length in rice [ 13 ], and increased number of leaves, shoot length and fresh weight of pechay ( Brassicarapa ) [ 9 ]. It exerts spectacular effects on physiological activities leading to enhanced productivity of plants [ 14 – 17 , 10 , 11 ]. Recently, it was reported by Maningas et al, [ 18 ] that ICA increased the rice yield up to 60%.…”

Section: Introductionmentioning

confidence: 99%

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Proliferating effect of radiolytically depolymerized carrageenan on physiological attributes, plant water relation parameters, essential oil production and active constituents of Cymbopogon flexuosus Steud. under drought stress

et al. 2017

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Carrageenan has been proved as potent growth promoting substance in its depolymerized form. However, relatively little is known about its role in counteracting the adverse effects of drought stress on plants. In a pot experiment, lemongrass (Cymbopogon flexuosus Steud.), grown under different water stress regimes [(100% field capacity (FC), 80% FC and 60% FC)], was sprayed with 40, 80 and 120 mg L-1 of gamma irradiated carrageenan (ICA). Foliar application of ICA mitigated the harmful effects of drought stress to various extents and improved the biochemical characteristics, quality attributes and active constituents (citral and geraniol) of lemongrass significantly. Among the applied treatments, ICA-80 mg L-1 proved the best in alleviating detrimental effects of drought. However, drought stress (80 and 60% FC), irrespective of the growth stages, had an adverse impact on most of the studied attributes. Generally, 60% FC proved more deleterious than 80% FC. At 80% FC, application of ICA-80 mg L-1 elevated the essential oil (EO) content by 18.9 and 25%, citral content by 7.33 and 8.19% and geraniol content by 9.2 and 8.9% at 90 and 120 days after planting (DAP), respectively, as compared to the deionized-water (DW) spray treatment (80% FC+ DW). Whereas, at 60% FC, foliar application of 80 mg L-1 ICA significantly augmented the EO content by 15.4 and 17.8% and active constituents viz. citral and geraniol, by 5.01 and 5.62% and by 6.06 and 5.61% at 90 and 120 DAP, respectively, as compared to the control (water-spray treatment).

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Modulation of physiological activities, active constituents and essential oil production of Mentha arvensis L. by concomitant application of depolymerised carrageenan, triacontanol and 28-homobrassinolide

Cited by 25 publications

References 27 publications

Exopolysaccharide Gellan Gum and Derived Oligo-Gellan Enhance Growth and Antimicrobial Activity in Eucomis Plants

Exopolysaccharide Gellan Gum and Derived Oligo-Gellan Enhance Growth and Antimicrobial Activity in Eucomis Plants

Regulation of functional activities and essential oil production in Vetiveria zizanioides L. Nash after γ-irradiated sodium alginate elicitation

Proliferating effect of radiolytically depolymerized carrageenan on physiological attributes, plant water relation parameters, essential oil production and active constituents of Cymbopogon flexuosus Steud. under drought stress

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