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Augustyniak A, Perlikowski D, Rapacz M, Kościelniak J, Kosmala A. Insight into cellular proteome of Lolium multiflorum/Festuca arundinacea introgression forms to decipher crucial mechanisms of cold acclimation in forage grasses. Plant Sci 2018; 272:22-31. [PMID: 29807594 DOI: 10.1016/j.plantsci.2018.04.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 04/04/2018] [Accepted: 04/05/2018] [Indexed: 05/24/2023]
Abstract
Frost tolerance is the main component of winter-hardiness. To express this trait, plants sense low temperature, and respond by activating the process of cold acclimation. The molecular mechanisms of this acclimation have not been fully understood in the agronomically important group of forage grasses, including Lolium-Festuca species. Herein, the introgression forms of L. multiflorum/F. arundinacea distinct with respect to their frost tolerance, were used as models for the comprehensive, proteomic and physiological, research to recognize the crucial components of cold acclimation in forage grasses. The obtained results stressed the importance of photosynthetic performance under acclimation to low temperature. The stable level of photochemical processes after three weeks of cold acclimation in the introgression form with a higher level of frost tolerance, combined simultaneously with only slightly (but not significantly) decreased level of CO2 assimilation after that period, despite significantly lower stomatal conductance, indicated the capacity for that form to acclimate its photosynthesis to low temperature. This phenomenon was driven by the Calvin cycle efficiency, associated with revealed here accumulation profiles and activities of chloroplastic aldolase. The capacity to acclimate the photosynthetic machinery to cold could be one of the most crucial components of forage grass metabolism to improve frost tolerance.
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Affiliation(s)
- Adam Augustyniak
- Institute of Plant Genetics, Polish Academy of Sciences, Strzeszynska 34, 60-479 Poznan, Poland.
| | - Dawid Perlikowski
- Institute of Plant Genetics, Polish Academy of Sciences, Strzeszynska 34, 60-479 Poznan, Poland.
| | - Marcin Rapacz
- Department of Plant Physiology, University of Agriculture in Cracow, Podluzna 3, 30-239 Krakow, Poland.
| | - Janusz Kościelniak
- Department of Plant Physiology, University of Agriculture in Cracow, Podluzna 3, 30-239 Krakow, Poland.
| | - Arkadiusz Kosmala
- Institute of Plant Genetics, Polish Academy of Sciences, Strzeszynska 34, 60-479 Poznan, Poland.
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Kusch U, Greiner S, Steininger H, Meyer AD, Corbière-Divialle H, Harms K, Rausch T. Dissecting the regulation of fructan metabolism in chicory (Cichorium intybus) hairy roots. New Phytol 2009; 184:127-140. [PMID: 19563442 DOI: 10.1111/j.1469-8137.2009.02924.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Fifteen per cent of higher plants accumulate fructans. Plant development, nutritional status and stress exposure all affect fructan metabolism, and while fructan biochemistry is well understood, knowledge of its regulation has remained fragmentary. Here, we have explored chicory (Cichorium intybus) hairy root cultures (HRCs) to study the regulation of fructan metabolism in sink tissues in response to environmental cues. In standard medium (SM), HRCs did not accumulate inulin. However, upon transfer to high-carbon (C)/low-nitrogen (N) medium, expression of sucrose:sucrose 1-fructosyltransferase (1-SST) and fructan:fructan 1-fructosyltransferase (1-FFT) was strongly induced and inulin accumulated. Upon return to SM, inulin was degraded, together with a coordinate decline of 1-SST and 1-FFT expression. In HRCs, cold-induced expression of fructan 1-exohydrolases (1-FEH I and IIa) was similar to cold induction in taproots, even in the absence of accumulated inulin. For high-C/low-N induction of 1-SST and 1-FFT, and cold induction of 1-FEH I and IIa, the signaling pathways were addressed. While 1-SST and 1-FFT induction was similarly prevented by inhibitors of Ca(2+) signaling, protein kinases and phosphatases, cold induction of 1-FEH I and IIa revealed distinct signaling pathways. In summary, this study has established chicory HRCs as a convenient experimental system with which to study the regulation of fructan active enzyme (FAZY) expression in heterotrophic cells.
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Affiliation(s)
- Ute Kusch
- HIP, Heidelberg University, INF 360, Heidelberg D-69120, Germany
| | - Steffen Greiner
- HIP, Heidelberg University, INF 360, Heidelberg D-69120, Germany
| | - Heike Steininger
- HIP, Heidelberg University, INF 360, Heidelberg D-69120, Germany
| | | | | | - Karsten Harms
- ZAFES, Südzucker AG Mannheim-Ochsenfurt, Obrigheim D-67283, Germany
| | - Thomas Rausch
- HIP, Heidelberg University, INF 360, Heidelberg D-69120, Germany
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Bascuñán-godoy L, Uribe E, Zúñiga-feest A, Corcuera LJ, Bravo LA. Low temperature regulates sucrose-phosphate synthase activity in Colobanthus quitensis (Kunth) Bartl. by decreasing its sensitivity to Pi and increased activation by glucose-6-phosphate. Polar Biol 2006; 29:1011-7. [DOI: 10.1007/s00300-006-0144-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Morcuende R, Kostadinova S, Pérez P, Martínez-Carrasco R. Fructan synthesis is inhibited by phosphate in warm-grown, but not in cold-treated, excised barley leaves. New Phytol 2005; 168:567-74. [PMID: 16313640 DOI: 10.1111/j.1469-8137.2005.01534.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The inhibition of fructan accumulation by phosphate was investigated in warm-grown and cold-treated barley (Hordeum vulgare) plants. Detached leaves were incubated in water or phosphate for 24 h under lighting or in darkness. Fructosyltransferase, sucrose phosphate synthase (SPS) and cytosolic fructose-1,6-bisphosphatase (FBPase) activities were subsequently analysed, as well as the content of carbohydrates, hexose-phosphates, phosphate, amino acids and protein. In warm-grown leaves, phosphate decreased fructan accumulation and total carbon in carbohydrates and did not affect protein content. Phosphate increased hexose-phosphates, phosphate and amino acids. Fructosyltransferase and FBPase activities were not affected by phosphate feeding, while SPS activity was inhibited by phosphate in incubations in both light and darkness. In cold-treated leaves, which before incubation had higher SPS activities than warm-grown leaves, phosphate had no inhibitory effect on fructan accumulation, carbohydrate content or total C in carbohydrates. The activities of SPS and FBPase were unaffected by phosphate. The results indicate that phosphate decreases fructan accumulation through an inhibition of SPS whenever this activity is not high before a rise in phosphate content.
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Affiliation(s)
- R Morcuende
- Institute for Natural Resources and Agricultural Biology of Salamanca, CSIC, Apartado 257, 37071 Salamanca, Spain
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Carillo P, Mastrolonardo G, Nacca F, Fuggi A. Nitrate reductase in durum wheat seedlings as affected by nitrate nutrition and salinity. Funct Plant Biol 2005; 32:209-219. [PMID: 32689125 DOI: 10.1071/fp04184] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2004] [Accepted: 02/22/2005] [Indexed: 06/11/2023]
Abstract
The combined effects of nitrate (0, 0.1, 1, 10 mm) and salt (0, 100 mm NaCl) on nitrogen metabolism in durum wheat seedlings were investigated by analysis of nitrate reductase (NR) expression and activity, and metabolite content. High salinity (100 mm NaCl) reduced shoot growth more than root growth. The effect was independent of nitrate concentration. NR mRNA was present at a low level in both leaves and roots of plants grown in a nitrogen-free medium. NaCl increased NR mRNA at low nitrate, suggesting that chloride can mimic nitrate as a signal molecule to induce transcription in both roots and leaves. However, the level of NR protein remained low in salt-stressed plants, indicating an inhibitory effect of salt on translation of NR mRNA or an increase in protein degradation. The lower activity of nitrate reductase in leaves of high-nitrate treated plants under salinity suggested a restriction of NO3- transport to the shoot under salinity. Salt treatment promoted photorespiration, inhibiting carbohydrate accumulation in plants grown on low nitrate media. Under salinity free amino acids, in particular proline and asparagine, and glycine betaine could function as osmolytes to balance water potential within the cell, especially when nitrogen availability exceeded the need for growth.
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Affiliation(s)
- Petronia Carillo
- Dipartimento di Scienze della Vita, Seconda Università degli Studi di Napoli, Via Vivaldi 43, 81100 Caserta, Italy
| | - Gabriella Mastrolonardo
- Dipartimento di Scienze della Vita, Seconda Università degli Studi di Napoli, Via Vivaldi 43, 81100 Caserta, Italy
| | - Francesco Nacca
- Dipartimento di Scienze della Vita, Seconda Università degli Studi di Napoli, Via Vivaldi 43, 81100 Caserta, Italy
| | - Amodio Fuggi
- Dipartimento di Scienze della Vita, Seconda Università degli Studi di Napoli, Via Vivaldi 43, 81100 Caserta, Italy
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Bhattacharya S, Schiavone M, Gomes J, Bhattacharya SK. Cascade of bioreactors in series for conversion of 3-phospho-d-glycerate into d-ribulose-1,5-bisphosphate: kinetic parameters of enzymes and operation variables. J Biotechnol 2004; 111:203-17. [PMID: 15219406 DOI: 10.1016/j.jbiotec.2004.04.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2003] [Revised: 03/31/2004] [Accepted: 04/01/2004] [Indexed: 10/26/2022]
Abstract
A novel scheme employing enzymatic catalysts is described enabling conversion of D-ribulose-1,5-bisphosphate (RuBP) from 3-phospho-D-glycerate (3-PGA) without loss of carbon. Bioreactors harboring immobilized enzymes namely, phosphoglycerate kinase (PGK), glycerate phosphate dehydrogenase, triose phosphate isomerase (TIM), aldolase, transketolase (TKL), phosphatase (PTASE/FP), epimerase (EMR) and phosphoribulokinase (PRK), in accordance with this novel scheme were employed. These reactors were designed and constructed based on simulations carried out to study their performance under various operational conditions and allowed production of about 56 +/- 3% RuBP from 3-PGA. This method of synthesis of RuBP from 3-PGA employing immobilized enzyme bioreactors may be used for continuous regeneration of RuBP in biocatalytic carbon dioxide fixation processes from emissions where RuBP acts as acceptor of carbon dioxide to produce 3-PGA, rendering the fixation process continuous.
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Affiliation(s)
- Sumana Bhattacharya
- Environmental Biotechnology Division, ABRD Company LLC, 1555 Wood Road, Cleveland, OH 44121, USA
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Morcuende R, Kostadinova S, Pérez P, Del Molino IMM, Martínez-Carrasco R. Nitrate is a negative signal for fructan synthesis, and the fructosyltransferase-inducing trehalose inhibits nitrogen and carbon assimilation in excised barley leaves. New Phytol 2004; 161:749-759. [PMID: 33873721 DOI: 10.1046/j.1469-8137.2004.00990.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
• Fructan biosynthesis in barley (Hordeum vulgare) has been shown to be upregulated by sugar signalling and downregulated by nitrogen. The relationship between these two regulations is investigated. • Excised third-leaves of barley were fed nitrate or glutamine under two light intensities. Other leaf blades were supplied in the dark for 24 h with nitrate and trehalose in the presence of validamycin A, a trehalase inhibitor. • In the light, nitrate, but not glutamine, decreased fructan contents and sucrose:fructan 6-fructosyltransferase protein without affecting the levels of sucrose and other carbohydrates. In darkened leaves, trehalose increased and nitrate decreased the fructan contents and total sucrose:fructosyltransferase activity without altering the concentration of sucrose. The effect on fructan contents of trehalose disappeared, whereas that of nitrate remained in subsequent incubations in water under light. Trehalose decreased and nitrate increased the light- and CO2 -saturated rate of photosynthesis without significantly affecting the initial Rubisco (ribulose-1,5-bisphosphate carboxylase oxygenase) activity. Trehalose feeding decreased the activation of nitrate reductase and amino acid levels, and blocked the positive effect of nitrate on the maximal activity of this enzyme. • The results indicate that nitrate, and not a downstream metabolite, is a negative signal for fructan synthesis, independent from the positive sugar signalling and overriding it. Trehalose signalling inhibits nitrogen and carbon assimilation, at the same time, inducing fructosyltransferase activity.
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Affiliation(s)
- R Morcuende
- Instituto de Recursos Naturales y Agrobiología de Salamanca, CSIC, Apartado 257, 37071 Salamanca, Spain
| | - S Kostadinova
- Instituto de Recursos Naturales y Agrobiología de Salamanca, CSIC, Apartado 257, 37071 Salamanca, Spain
- Present address: Department of Agrochemistry and Soil Science, Agricultural University, 12 Mendeleev Street, 4000 Plovdiv, Bulgaria
| | - P Pérez
- Instituto de Recursos Naturales y Agrobiología de Salamanca, CSIC, Apartado 257, 37071 Salamanca, Spain
| | - I M Martín Del Molino
- Instituto de Recursos Naturales y Agrobiología de Salamanca, CSIC, Apartado 257, 37071 Salamanca, Spain
| | - R Martínez-Carrasco
- Instituto de Recursos Naturales y Agrobiología de Salamanca, CSIC, Apartado 257, 37071 Salamanca, Spain
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