Slow fluorescence induction and productivity of barley treated with a supercritical fluid extract of amaranth

Karavaev, V. A.; Gunar, L. E.; Myakinkov, A. G.; Гинс, М. С.; Glazunova, S. A.; Levykina, I. P.; Lepeshkin, F. D.

doi:10.1134/s0006350912040070

Cited by 7 publications

(5 citation statements)

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“…It has been reported in previous studies [6,7] that there was an increase in the (F M -F T )/F T indicator of fluorescence slow induction of barley leaves treated with physiologically active substances (F M is the max imum and F T the stationary value of fluorescence intensity at a wavelength of 686 nm) that resulted ulti mately in higher yields and main indices of yield struc ture of the experimental plants. Along with induction changes in the fluorescence at a fixed wavelength, the interest of researchers is focused on studying the fluo rescence spectra of green leaf [8,9].…”

Section: Introductionmentioning

confidence: 91%

“…An important advantage of fluorescent research methods is that they usually can detect changes in the photosynthetic apparatus in the early stages of the impact of one or another factor, even before the appearance of typical morphological changes [1,[4][5][6]. Establishing the relationship between fluorescent and physiological characteristics of plants is an important and urgent task.…”

Section: Introductionmentioning

confidence: 99%

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Luminescent and physiological indices of triticale plants under treatment of seeds with growth regulators

et al. 2015

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It is shown that before sowing treatment of triticale seeds with the growth regulators epin and zir con resulted in an increase in the F 742 /F 686 ratio of the stationary fluorescence intensities of plant leaves at the wavelength bands of 742 and 686 nm corresponding to the maxima in the leaf fluorescence spectrum. Triticale under the treatment of seeds with growth regulators showed higher chlorophyll content, higher productivity, and higher indices of crop yield.

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Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Luminescent and physiological indices of triticale plants under treatment of seeds with growth regulators

et al. 2015

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“…The extracts from fresh and dried leaves of cv. Valentina stimulated the growing activity of vegetable seeds, which allows its extracts to be used in phytobiology for stimulation of seeds and sprouts (in the concentration of 10-4, 10-5 M) [49]. The mechanism of antioxidant activity of Amarantin is associated with its ability to neutralize the superoxide radical and inhibit lipid peroxidation.…”

Section: Biologically Active Components Of the Studied Cultivars Of A...mentioning

confidence: 99%

Metabolite Profile of Amaranthus tricolor L. and Amaranthus cruentus L. in Adaptation to Drought

Motyleva¹,

Гинс²,

Гинс³

et al. 2022

Pseudocereals

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The Federal Research Center of Vegetable Growing has developed the cultivars Valentina (Amaranthus tricolor L.) and Krepysh (Amaranthus cruentus L.), which are successfully grown in several regions of Russia. The dry periods observed in recent years have a negative impact on the development of plants. The red-colored vegetable cultivar demonstrated a higher level of adaptability to drought than the green-colored grain cultivar. It was found that only in the leaves of cv. Valentina multiple spiked crystals consisting of four elements were formed, the predominant proportion belonged to Ca (38.59), then P (0.48), Mg (0.25), and K (0.16) followed, weight%, respectively. Under the conditions of moisture deficiency, the antioxidant activity of water and ethanol extracts in the leaves of both types of amaranth increased from 1.5 to 2.5 times. It was established that under drought conditions, the carbohydrate metabolism and the synthesis of secondary metabolites change. The leaves of the new cultivar of amaranth Valentina are a promising and reproducible source of antioxidants and can be used to create phytobiological preparations. The increased level of the main macro- and microelements—Ca, K, P, Mg, Mo, S and Cl in the seeds of cv. Valentina and Krepysh makes these cultivars promising for use in the food industry.

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“…It is well established that �uorescence spectroscopy is an effective method for environmental monitoring and hydrographic measurements [33,34], characterization of benthic organisms [35], algal cells [36,37], corals [38] and higher plants [39][40][41][42][43][44][45][46], speci�cation of photosynthetic pigments [47][48][49], and other biological molecules [50,51]. Spectral methods were successfully employed for studying NOM in natural water [52][53][54][55][56][57][58][59], as well as commercial HS preparations [60][61][62][63].…”

Section: Introductionmentioning

confidence: 99%

Spectral Characterization of Fungal Metabolites in Aqueous Medium with Humus Substances

Khundzhua

Patsaeva

Терехова

et al. 2013

Journal of Spectroscopy

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The work is targeted to confirm participation of microscopic fungi in transformation of humus substances in aquatic environments. The research is focused on the spectroscopic study of the collection of fungal strains with different pigmentation of mycelium. Spectral properties of fungal metabolites were measured and compared to that of natural aquatic nonliving organic matter and commercial humus substances in aqueous solutions. The experiments revealed that the effect of microscopic fungi growing in the culture medium with added humate appeared as changes in the humic-type fluorescence: its characteristics became more similar to that of nonliving organic matter in natural waters than to original humate preparation. The experiments demonstrated degradation of coal-originated humate due to microbial activity into compounds of smaller molecular size and increased heterogeneity. We resume that transformation of humus substances by fungal cultures can be monitored and characterized using spectral measurements.

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Slow fluorescence induction and productivity of barley treated with a supercritical fluid extract of amaranth

Cited by 7 publications

References 1 publication

Luminescent and physiological indices of triticale plants under treatment of seeds with growth regulators

Luminescent and physiological indices of triticale plants under treatment of seeds with growth regulators

Metabolite Profile of Amaranthus tricolor L. and Amaranthus cruentus L. in Adaptation to Drought

Spectral Characterization of Fungal Metabolites in Aqueous Medium with Humus Substances

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