Growth, Phosphatase and Ribonuclease Activity in Phosphate-deficient Spirodela oligorrhiza Cultures

Knypl, J. S.; Kabzińska, Elžbieta

doi:10.1016/s0015-3796(17)30311-6

Cited by 18 publications

(8 citation statements)

References 8 publications

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“…An index of the chlorophyll content in leaves was estimated using a SPAD-502 chlorophyll meter (Konica Minolta, Osaka, Japan) [ 17 ]. The activities of acid (pH 6) (EC 3.1.3.2) and alkaline (pH 7.5) (EC 3.1.3.1) phosphorylases (U g −1 (FM) min −1 ) in leaves and RNase (EC 3.1.27.5) (U g −1 (FM) min −1 ) were studied using the methods demonstrated by Knypl and Kabzinska [ 50 ]. The activity of total dehydrogenases (EC 1.1.1.-) was measured using the procedure presented by Górnik and Grzesik [ 20 , 51 ] with a spectrophotometer (UVmini-1240, Shimadzu, Japan) for formazan determination at a wavelength of 480 nm.…”

Section: Methodsmentioning

confidence: 99%

Acquisition of Torrefied Biomass from Jerusalem Artichoke Grown in a Closed Circular System Using Biogas Plant Waste

et al. 2020

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The aim of the research was to investigate the effect of biogas plant waste on the physiological activity, growth, and yield of Jerusalem artichoke and the energetic usefulness of the biomass obtained in this way after the torrefaction process. The use of waste from corn grain biodigestion to methane as a biofertilizer, used alone or supplemented with Apol-humus and Stymjod, caused increased the physiological activity, growth, and yield of Jerusalem artichoke plants and can limit the application of chemical fertilizers, whose production and use in agriculture is harmful for the environment. The experiment, using different equipment, exhibited the high potential of Jerusalem artichoke fertilized by the methods elaborated as a carbonized solid biofuel after the torrefaction process. The use of a special design of the batch reactor using nitrogen, Thermogravimetric analysis, Differential thermal analysis, and Fourier-transform infrared spectroscopy and combustion of Jerusalem artichoke using TG-MS showed a thermo-chemical conversion mass loss on a level of 30% with energy loss (torgas) on a level of 10%. Compared to research results on other energy crops and straw biomass, the isothermal temperature of 245 °C during torrefaction for the carbonized solid biofuel of Jerusalem artichoke biomass fertilized with biogas plant waste is relativlely low. An SEM-EDS analysis of ash from carbonized Jerusalem artichoke after torrefaction was performed after its combustion.

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Section: Methodsmentioning

confidence: 99%

Acquisition of Torrefied Biomass from Jerusalem Artichoke Grown in a Closed Circular System Using Biogas Plant Waste

et al. 2020

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“…The activity of net photosynthesis, stomatal conductance, intercellular CO 2 concentration, and transpiration were measured in the infrared light using a TPS-2 gas analyzer apparatus, PP Systems (USA) [20,21]. Activities of acid (pH=6) and alkaline (pH=7.5) phosphatase and RNase in the leaves were examined according to the methods described by Knypl and Kabzińska [22]. Total dehydrogenase activities were evaluated by the procedure described by Górnik and Grzesik [23] using SHIMADZU UVmini-1240 spectrophotometer for formazan determination at a wavelength of 480 nm.…”

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confidence: 99%

Ability of Cyanobacteria and Green Algae to Improve Metabolic Activity and Development of Willow Plants

Grzesik¹,

Romanowska-Duda²

2015

Pol. J. Environ. Stud.

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Large-scale Cyanobacteria and green algae production has been studied for decades, due to the wide variety of practical and potentially metabolic products that can be obtained such as food supplements, lipids, enzymes, biomass, polymers, toxins, pigments, tertiary wastewater treatment, and green energy products. Cyanobacteria are one of the major components of the potential source of nitrogen fixation and convert it into a bioavailable form of ammonium required for plant growth. These organisms have a unique potential to enhance productivity in a variety of agricultural and ecological situations and they play an important role in building up soil fertility, consequently increasing the yield. Biofertilizers, being essential components of organic farming, play a vital role in maintaining long-term soil fertility and sustainability by fixing atmospheric dinitrogen (N=N), mobilizing fixed macro and micro nutrients, or converting insoluble phosphorus in soil into forms available to plants, thereby increasing their efficiency and availability [1].

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“…The electrolyte leakage was measured after 2 and 4 h, using microcomputer conductivity meter CC-551 Elmetron (Gornik and Grzesik, 2002;Szwonek, 2009). The activities of acid and alkaline phosphatases and RNase in the leaves were examined according to the methods described by Knypl and Kabzinska (1977) (Smolen, 2009). The index of chlorophyll content in the leaves was evaluated using Minolta SPAD-502, Japan.…”

Section: Methodsmentioning

confidence: 99%

Positive impact of bio-stimulators on growth and physiological activity of willow in climate change conditions

Piotrowski

Romanowska-Duda

2018

International Agrophysics

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A b s tr act. The aim of this research was to evaluate the physiological activity and growth of willow (Salix viminalis L.) plants cultivated under the conditions of adverse temperature and soil moisture content, and to assess the effect of the foliar application of Biojodis (1.0%) and Asahi SL (0.03%) bio-stimulators, or a mixture of Microcistis aeruginosa MKR 0105 and Anabaena PCC 7120 cyanobacteria under such changing growth conditions. The obtained results showed different reactions to the applied constant or periodically changed temperature and soil moisture content. The plants which grew at periodically changed adverse temperature (from -5 to 40 o C) or in scantily (20% m.c.) or excessively (60% m.c.) watered soils, grew slowly, in comparison with those growing at 20 o C and in optimally moistened soil (30% m.c.). Foliar application of Biojodis and Asahi SL cyanobacteria increased the growth of willow at optimal and adverse temperature or in scantily and excessively moistened soil. The changes in plant growth were associated with the changes in electrolyte leakage, activity of acid or alkaline phosphatases, RNase, index of chlorophyll content in leaves and gas exchange. The above indicates that the foliar application of the studied cyanobacteria and bio-stimulators partly alleviates the harmful impact of adverse temperature and water stress on growth and physiological activity of willow plants.K e y w o r d s: willow, bio-stimulators, growth, physiological activity

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Growth, Phosphatase and Ribonuclease Activity in Phosphate-deficient Spirodela oligorrhiza Cultures

Cited by 18 publications

References 8 publications

Acquisition of Torrefied Biomass from Jerusalem Artichoke Grown in a Closed Circular System Using Biogas Plant Waste

Acquisition of Torrefied Biomass from Jerusalem Artichoke Grown in a Closed Circular System Using Biogas Plant Waste

Ability of Cyanobacteria and Green Algae to Improve Metabolic Activity and Development of Willow Plants

Positive impact of bio-stimulators on growth and physiological activity of willow in climate change conditions

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