Endogenous progesterone and its cellular binding sites in wheat exposed to drought stress

Janeczko, Anna; Oklešťková, Jana; Siwek, Agata; Dziurka, Michał; Pociecha, Ewa; Kocurek, Maciej; Novák, Ondřej

doi:10.1016/j.jsbmb.2013.07.014

Cited by 27 publications

(24 citation statements)

References 66 publications

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“…Exogenous application of MSHs activate the oxidative enzymes under non-stress conditions [26]. The latest results obtained in spring wheat after drought treatment [24] suggest that progesterone and its putative receptors contribute in processes regulating plant interactions with the environment. Thus, exogenous application of MSHs may be used to increase the plant resistance to negative environmental conditions.…”

Section: Steroid Hormonesmentioning

confidence: 99%

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Exogenous steroid hormones stimulate full development of autonomous endosperm in Arabidopsis thaliana

et al. 2015

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Most flowering plants, including important crops, require double fertilization to form an embryo and endosperm, which nourishes it. Independence from fertilization is a feature of apomictic plants that produce seeds, from which the plants that are clones of the mother plant arise. The phenomenon of apomixis occurs in some sexual plants under specific circumstances. Since the launch of a fertilization-independent mechanism is considered a useful tool for plant breeding, there have been efforts to artificially induce apomixis. We have been able to produce fertilization-independent endosperm in vitro in Arabidopsis over the last few years. This paper demonstrates the methods of improving the quality of the endosperm obtained using plant and mammalian steroid hormones. Additionally, it shows the study on the autonomous endosperm (AE) formation mechanism in vitro.This paper examines the effect of exogenous steroid hormones on unfertilized egg and central cell divisions in culture of unpollinated pistils of Arabidopsis Col-0 wild-type and fie-1 mutant. All media with hormones used (estrone, androsterone, progesterone, and epibrassinolide) stimulated central cell divisions and fertilization-independent endosperm development. The stages of AE development followed the pattern of Arabidopsis thaliana wild type after fertilization. Subsequent stages of AE were observed from 2-nuclear up to cellular with the most advanced occurring on medium with 24-epibrassinolide and progesterone. The significant influence of mammalian sex hormones on speed of AE development and differentiation was noticed. Using restriction analysis, the changes in methylation of FIE gene was established under in vitro condition. The authors of this paper showed that Arabidopsis thaliana has a high potency to fertilization-independent development.

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Section: Steroid Hormonesmentioning

confidence: 99%

“…Selected mammalian steroids, exogenously deposited, stimulate plant cell division, the maturation of pollen as well as growth and flowering [24]. Progesterone, estrone and androsterone induce in vitro flowering in Arabidopsis thaliana [25].…”

Section: Steroid Hormonesmentioning

confidence: 99%

Exogenous steroid hormones stimulate full development of autonomous endosperm in Arabidopsis thaliana

et al. 2015

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“…Binding sites for progesterone in the cells were also studied in vernalized and non vernalized winter wheat [102,103]. They are localized in both the cytoplasm and the cell membranes (microsomal fraction) [102,103].…”

Section: Progesterone Receptorsmentioning

confidence: 99%

“…They are localized in both the cytoplasm and the cell membranes (microsomal fraction) [102,103]. The number of binding sites for progesterone located in the membrane fraction of seedlings and flag leaves increased significantly under drought in the cv.…”

Section: Progesterone Receptorsmentioning

confidence: 99%

Steroidogenesis in plants – Biosynthesis and conversions of progesterone and other pregnane derivatives

Lindemann

2015

Steroids

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“…The major advantage of non-invasive techniques is their non-destructive effect on plant tissue in comparison to standard analytical methods. The most popular noninvasive methods include infra-red analysis of metabolic CO 2 exchange [2], reflectance techniques [3], and fast kinetic chlorophyll a fluorescence [4]. Isothermal calorimetry is less known but is also applied [5,6].…”

Section: Introductionmentioning

confidence: 99%

FT-Raman spectroscopy as a tool in evaluation the response of plants to drought stress

et al. 2015

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The aim of study was to evaluate the usefulness of FT-Raman spectroscopy in assessing stress-induced metabolic changes in plants. 20-d-old optimally watered plants of soybean were exposed to drought. Metabolic changes in optimally watered and drought-stressed plants were monitored using FT-Raman spectroscopy. In parallel, analyses were carried out of fatty acid composition and pigment content using analytical methods. These compounds are associated with the response of plants to environmental stress. While fatty acid assays in study were inconclusive, the pigment content analysis gave promising results. FT-Raman experiment demonstrated a decrease in carotenoid content in leaf, as a result of drought, which was confirmed by spectrophotometric analysis. In addition to the analysis of aforementioned compounds, FT-Raman spectroscopy allowed the simultaneous observation of a wider spectrum of compounds scattering the radiation in the leaves tested, and their subsequent comparative analysis. The impact of drought on metabolism of soybean was clearly visible on spectra and confirmed using cluster analysis. The technical problem of the influence of leaf water content on measurements, which appeared in studies, will be discussed. To conclude, FT-Raman spectroscopy may be a good complement to other noninvasive methods, e.g., fluorescent methods, in assessing the stress-induced damage of crops.

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Endogenous progesterone and its cellular binding sites in wheat exposed to drought stress

Cited by 27 publications

References 66 publications

Exogenous steroid hormones stimulate full development of autonomous endosperm in Arabidopsis thaliana

Exogenous steroid hormones stimulate full development of autonomous endosperm in Arabidopsis thaliana

Steroidogenesis in plants – Biosynthesis and conversions of progesterone and other pregnane derivatives

FT-Raman spectroscopy as a tool in evaluation the response of plants to drought stress

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