Growth stimulation effects of smoke-water and vermicompost leachate on greenhouse grown-tissue-cultured ‘Williams’ bananas

Aremu, Adeyemi O.; Kulkarni, Manoj G.; Bairu, Michael W.; Finnie, J.F.; Staden, J. Van

doi:10.1007/s10725-011-9634-6

Cited by 32 publications

(23 citation statements)

References 40 publications

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“…Smoke-water and VCL treatments were effective in improving root growth parameters of banana (Aremu et al, 2012). In our study, the number of adventitious roots were markedly promoted with VCL (1:5 v/v) and SW (1:750 v/v), whereas there was a non-significant increase with KAR 1 (10 29 M).…”

Section: Discussionmentioning

confidence: 44%

Biochemical changes associated with gibberellic acid-like activity of smoke-water, karrikinolide and vermicompost leachate during seedling development ofPhaseolus vulgarisL.

2014

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Smoke-water (SW), karrikinolide (KAR1) and vermicompost leachate (VCL) have been reported to possess gibberellic acid-like activity. The effects of these plant growth-promoting substances (PGPSs) on biochemical changes occurring during seed germination of Phaseolus vulgaris were assessed. Seeds were incubated/germinated under dark conditions in water (control) or with different concentrations of SW, KAR1, VCL and gibberellic acid (GA3) for 7 d. The maximum seedling fresh weight (1.863 g) was recorded for the SW (1:750 v/v) treatment. The longest seedling axes (9.9 cm) and the highest number of adventitious roots (16.3) were recorded for VCL-treated seedlings (1:10 and 1:5 v/v, respectively). Analysis of two important hydrolytic enzymes, acid phosphatase and alpha-amylase, showed maximum activity [1856 nkat mg− 1 and 3.225 mg min− 1(g FW)− 1, respectively] in the seeds incubated with 10− 8M KAR1. In all the treated seedlings, proline content was significantly reduced [43.67 μg (g FW)− 1; VCL (1:20 v/v)] in comparison to the control [87 μg (g FW)− 1] but there was an increase in amino acids with some concentrations of PGPSs. The tested PGPSs significantly influenced various biochemical parameters that play a significant role in seed germination and plant growth. This study indicates that PGPSs may act via stress-relieving biochemical pathways during seed germination.

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Section: Discussionmentioning

confidence: 44%

Biochemical changes associated with gibberellic acid-like activity of smoke-water, karrikinolide and vermicompost leachate during seedling development ofPhaseolus vulgarisL.

2014

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“…Recently, low concentrations of SW and KAR 1 have also been associated with auxin and CKlike activities in vitro (Jain et al 2008). In a greenhouse experiment, SW significantly improved various rooting parameters in bananas (Aremu et al 2012). Some authors postulated that PGR-like responses of SW and KAR 1 are probably due to their interaction with the endogenous PGRs (Jain et al 2008;Chiwocha et al 2009).…”

Section: Discussionmentioning

confidence: 99%

Stimulatory role of smoke–water and karrikinolide on the photosynthetic pigment and phenolic contents of micropropagated ‘Williams’ bananas

et al. 2012

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At low concentrations, smoke-water (SW) and smoke-derived karrikinolide (KAR 1 ) are compounds with potential cytokinin and auxin-like activity. Their roles on the growth, photosynthetic pigment and phenolic contents of micropropagated 'Williams' bananas were investigated in comparison with meta-topolin (mT). Explants were cultured on modified Murashige and Skoog basal media supplemented with either SW (1:125; 1:250; 1:500; 1:1,000; 1:2,000 dilutions) or KAR 1 at four concentrations ranging from 4.8 9 10 -22 to 3.3 9 10 -12 M. After 42 days, growth parameters were measured while the photosynthetic pigments and phenolic contents were quantified using spectrophotometric methods. Chlorophyll a, b and total carotenoid contents were significantly enhanced by KAR 1 (4.8 9 10 -22 M) and SW (1:125 and 1:1,000 dilutions). The pigments in KAR 1 -treated plantlets were approximately two-fold to three-fold higher than those in the control and mT-treated plants, respectively. Total phenolic content was highest with KAR 1 at 1.0 9 10 -19 M in the leaves and 7.8 9 10 -17 M in the roots. Furthermore, KAR 1 -treated plants at 1.0 9 10 -19 M yielded the highest level of total phenolics (leaves) and proanthocyanidins (roots). At 1:500 dilutions, SW stimulated the highest total flavonoid content in the leaves across all the treatments. Combining mT with either SW (1:500) or KAR 1 (4.8 9 10 -22 M) significantly increased the quantity of secondary metabolites. However, the growth parameters and pigment contents were not improved. Based on the significant role of photosynthetic pigments and phenolic compounds on the defense and survival strategies of plants, current findings will have practical significance for important processes such as acclimatization and survival of micropropagated plants. These results are also demonstrating the potential of SW and KAR 1 as an eliciting agent for secondary metabolite production.

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“…There is strong evidence that CKs are able to move among plants, other organisms and the different physical components of the biosphere and this may explain the frequent identification of CKs in many biostimulants used in agriculture (Sharma et al 2014). There are several studies involving the application of VCL where CK-like activity has been demonstrated in plant species (Suthar 2010;Aremu et al 2012;Arthur et al 2012) and thus researchers have postulated that vermicompost possibly contains some levels of CKs (Tomati et al 1988;Suthar 2010). Recent findings by Zhang et al (2014) and Pant et al (2012) identified 3 CKs in vermicompost tea.…”

Section: Cytokinin Concentrations and Role In Vermicompost Leachatementioning

confidence: 99%

“…Vermicompost are made by controlled aerobic and thermophilic biological transformation to attain the required pasteurization and a specified level of maturity (Campitelli and Ceppi 2008). The increasing acceptance of vermicompost products is due to numerous benefits including their usefulness in plant growth media and soil ameliorants (Theunissen et al 2010;Aremu et al 2012) as well as alleviation of nutrient deficiency (Arthur et al 2012;Aremu et al 2014) and other abiotic stress conditions (Chinsamy et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Evidence of phytohormones and phenolic acids variability in garden-waste-derived vermicompost leachate, a well-known plant growth stimulant

et al. 2014

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Cytokinins, auxins, abscisic acid, gibberellins (GAs) and brassinosteroids (BRs) as well as the phenolic acid content in three batches of vermicompost leachate (VCL) were quantified using ultra high performance liquid chromatography-tandem mass spectrometry. N 6 -isopentenyladenine formed the major (60 %) proportion of the CK content while dihydrozeatin had the lowest (\0.02 %) concentration. Indole-3-acetic acid ranged from approximately 0.55-0.77 pmol/mL. A total of 18 GAs including bioactive forms and metabolic end products were observed in the VCL samples. Cathasterone had the highest (2,500-3,200 fg/mL) concentration while brassinolide was the lowest (1-5 fg/mL) abundant BRs found. Phenolic acids quantified were protocatechuic acid (3-3.6 lg/mL), p-hydroxybenzoic acid (2.5-2.8 lg/mL), p-coumaric acid (1-1.7 lg/mL) and ferulic acid (0-4 lg/mL). These results provide an indication of the rich diversity in natural PGRs and phytochemicals in VCL which may inevitably contribute to the numerous favorable physiological responses elicited by VCL application to plants.

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Growth stimulation effects of smoke-water and vermicompost leachate on greenhouse grown-tissue-cultured ‘Williams’ bananas

Cited by 32 publications

References 40 publications

Biochemical changes associated with gibberellic acid-like activity of smoke-water, karrikinolide and vermicompost leachate during seedling development ofPhaseolus vulgarisL.

Biochemical changes associated with gibberellic acid-like activity of smoke-water, karrikinolide and vermicompost leachate during seedling development ofPhaseolus vulgarisL.

Stimulatory role of smoke–water and karrikinolide on the photosynthetic pigment and phenolic contents of micropropagated ‘Williams’ bananas

Evidence of phytohormones and phenolic acids variability in garden-waste-derived vermicompost leachate, a well-known plant growth stimulant

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