Relevant bibliographies by topics / Fructan 1-exohydrolase (1-FEH)

Academic literature on the topic 'Fructan 1-exohydrolase (1-FEH)'

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Published: 4 June 2021
Last updated: 19 February 2022

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Journal articles on the topic "Fructan 1-exohydrolase (1-FEH)"

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Le Roy, Katrien, Rudy Vergauwen, Veerle Cammaer, Midori Yoshida, Akira Kawakami, André Van Laere, and Wim Van den Ende. "Fructan 1-exohydrolase is associated with flower opening in Campanula rapunculoides." Functional Plant Biology 34, no. 11 (2007): 972. http://dx.doi.org/10.1071/fp07125.

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Fructans, typically reserve carbohydrates, may also fulfil other more specific roles in plants. It has been convincingly demonstrated that fructan hydrolysis contributes to osmoregulation during flower opening in the monocot species Hemerocallis. We report that a massive breakdown of inulin-type fructans in the petals of Campanula rapunculoides L. (Campanulaceae), associated with flower opening, is accompanied by a strong increase in fructan 1-exohydrolase (1-FEH; EC 3.2.1.153) activity and a decrease in sucrose : sucrose 1-fructosyl transferase (1-SST; EC 2.4.1.99) activity. The data strongly suggest that the drastic change in the 1-FEH/1-SST activity ratio causes the degradation of inulin, contributing to the osmotic driving force involved in flower opening. All characterised plant FEHs are believed to be derived from tissues that store fructans as a reserve carbohydrate either temporarily (grasses and cereals) or over a longer term (dicot roots and tubers). Here, we focussed on a physiologically distinct tissue and used a reverse transcriptase–polymerase chain reaction based strategy to clone the 1-FEH cDNA from the Campanula petals. The translated cDNA sequence groups along with other dicot FEHs and heterologous expression revealed that the cDNA encodes a 1-FEH without invertase activity. 1-FEH expression analysis in petals correlates well with 1-FEH activity and inulin degradation patterns in vivo, suggesting that this enzyme fulfils an important role during flower opening.
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Nemati, Farnoosh, Faezeh Ghanati, Hassan Ahmadi Gavlighi, and Mohsen Sharifi. "Fructan dynamics and antioxidant capacity of 4-day-old seedlings of wheat (Triticum aestivum) cultivars during drought stress and recovery." Functional Plant Biology 45, no. 10 (2018): 1000. http://dx.doi.org/10.1071/fp18008.

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One of the inevitable consequences of drought stress is enhanced production of reactive oxygen species (ROS). Fructan might function as effective candidate for capturing ROS in a wide range of stresses. Herein, 4-day-old seedlings of drought-tolerant and -sensitive wheat cultivars were exposed to drought stress for 7 days by water cessation, followed by further 7 days re-watering. The content, metabolism, related enzymes activity, degree of polymerisation (DP) and antioxidant capacity of fructan were compared in the two cultivars. High resolution HPAEC-PAD analysis of fructan showed an increase in the activities of fructan: fructan 1-fructosyltransferase (1-FFT) in the tolerant cultivar and sucrose: sucrose 1-fructosyltransferase (1-SST) and 1-FFT in the sensitive cultivar under drought condition. The activity of fructan exohydrolase (FEH) did not show any significant change in tolerant cultivar, but decreased in a sensitive one. In comparison with the sensitive cultivar, the tolerant one accumulated fructan (0.9% of dry matter) with higher degree of polymerisation (10.67 ± 1.1), accompanied by increased OH radical scavenging activity, during drought condition. In regard to the fact that OH radical is the most prevalent ROS in damaging membrane lipids, the results suggest that fructans play a crucial role in the tolerance of wheat seedlings against drought stress.
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Van den Ende, W., and A. Van Laere. "Induction of 1-FEH in Mature Chicory Roots Appears to be Related to Low Temperatures Rather than to Leaf Damage." Scientific World JOURNAL 2 (2002): 1750–61. http://dx.doi.org/10.1100/tsw.2002.857.

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Large-scale inulin production from chicory roots (Cichorium intybus L.) is hampered by the induction of 1-FEH activity (fructan 1-exohydrolase) and concomitant fructose production in autumn, coincident with a period with low night temperatures that cause leaf damage. To understand whether leaf damage per se is sufficient for 1-FEH induction and fructan breakdown, we defoliated mature chicory plants at a preharvest stage (September 10) and investigated the changes in carbohydrate levels and 1-FEH activities. Also, the activities of 1-SST (sucrose:sucrose 1-fructosyl transferase, EC 2.4.1.99), 1-FFT (fructan:fructan 1-fructosyl transferase, EC 2.4.1.100), and acid invertase (EC 3.2.1.26) were determined. Defoliation did not result in a prompt fructan breakdown and increase in 1-FEH activity, but after 10 days fructan breakdown and 1-FEH activities became higher in the defoliated plants. Defoliation resulted in a sharp decrease in 1-SST activity over the first 24 h. Afterwards, root 1-SST activities of defoliated plants remained at a lower level than in control plants. 1-FFT and invertase activities were not affected by defoliation. It can be concluded that defoliation of plants at the preharvest stage by itself did not induce the same rapid changes as observed in naturally induced October roots by low temperature (harvest stage). Taken together with our finding that 1-FEH is not induced in chicory roots when plants are transferred to the greenhouse early autumn (minimal temperature 14°C), we conclude that low temperatures might be essential for 1-FEH induction.
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Lothier, J., B. Lasseur, K. Le Roy, A. Van Laere, M. P. Prud'homme, P. Barre, W. Van den Ende, and A. Morvan-Bertrand. "Cloning, gene mapping, and functional analysis of a fructan 1-exohydrolase (1-FEH) from Lolium perenne implicated in fructan synthesis rather than in fructan mobilization." Journal of Experimental Botany 58, no. 8 (April 23, 2007): 1969–83. http://dx.doi.org/10.1093/jxb/erm053.

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del Viso, Florencia, Andrea F. Puebla, H. Esteban Hopp, and Ruth Amelia Heinz. "Cloning and functional characterization of a fructan 1-exohydrolase (1-FEH) in the cold tolerant Patagonian species Bromus pictus." Planta 231, no. 1 (September 30, 2009): 13–25. http://dx.doi.org/10.1007/s00425-009-1020-5.

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Zhang, Jingjuan, Bernard Dell, Elisabeth Conocono, Irene Waters, Tim Setter, and Rudi Appels. "Water deficits in wheat: fructan exohydrolase (1-FEH) mRNA expression and relationship to soluble carbohydrate concentrations in two varieties." New Phytologist 181, no. 4 (December 18, 2008): 843–50. http://dx.doi.org/10.1111/j.1469-8137.2008.02713.x.

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Wilson, Robert G., Alex R. Martin, and Stephen D. Kachman. "Seasonal Changes in Carbohydrates in the Root of Canada thistle (Cirsium arvense) and the Disruption of these Changes by Herbicides." Weed Technology 20, no. 1 (March 2006): 242–48. http://dx.doi.org/10.1614/wt-05-052r1.1.

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Roots of Canada thistle were excavated from the soil monthly from 1999 to 2001 near Scottsbluff, NE, to quantify the influence of changing soil temperature on free sugars and fructans in roots. Sucrose concentrations were low from May through August then increased in the fall and remained at high levels during winter and then declined in April as plants initiated spring growth. Changes in sucrose, 1-kestose (DP 3) and 1-nystose (DP 4) were shown to be closely associated with changes in soil temperature. During the second year of the study, average soil temperatures during the winter were colder than the first year and resulted in an increase of sucrose in Canada thistle roots. Experiments were conducted from 2001 to 2004 to determine whether there was a correlation between herbicide efficacy, time of herbicide application, and the resulting herbicide effect on root carbohydrate and Canada thistle control. Clopyralid applied in the fall reduced Canada thistle density 92% 8 months after treatment (MAT) whereas treatment made in the spring reduced plant density 33% 11 MAT. Fall application of clopyralid increased the activity of fructan 1-exohydrolase (1-FEH) in roots and was associated with a decline in sucrose, DP 4, and 1-fructofuranosyl-nystose (DP 5) 35 d after treatment (DAT). Spring application of clopyralid also resulted in a decrease of the same carbohydrates 35 DAT, but by 98 DAT, or early October, sucrose level in roots had recovered and was similar to nontreated plants. Fall application of 2,4-D or clopyralid reduced Canada thistle density 39 and 92% respectively, 8 MAT, but only clopyralid resulted in a reduction of sucrose, DP 4, DP 5, and total sugar and an increase of 1-FEH compared with nontreated plants.
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Zhao, Hongbo, Steffen Greiner, Klaus Scheffzek, Thomas Rausch, and Guoping Wang. "A 6&1-FEH Encodes an Enzyme for Fructan Degradation and Interact with Invertase Inhibitor Protein in Maize (Zea mays L.)." International Journal of Molecular Sciences 20, no. 15 (August 4, 2019): 3807. http://dx.doi.org/10.3390/ijms20153807.

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About 15% of higher plants have acquired the ability to convert sucrose into fructans. Fructan degradation is catalyzed by fructan exohydrolases (FEHs), which are structurally related to cell wall invertases (CWI). However, the biological function(s) of FEH enzymes in non-fructan species have remained largely enigmatic. In the present study, one maize CWI-related enzyme named Zm-6&1-FEH1, displaying FEH activity, was explored with respect to its substrate specificities, its expression during plant development, and its possible interaction with CWI inhibitor protein. Following heterologous expression in Pichia pastoris and in N. benthamiana leaves, recombinant Zm-6&1-FEH1 revealed substrate specificities of levan and inulin, and also displayed partially invertase activity. Expression of Zm-6&1-FEH1 as monitored by qPCR was strongly dependent on plant development and was further modulated by abiotic stress. To explore whether maize FEH can interact with invertase inhibitor protein, Zm-6&1-FEH1 and maize invertase inhibitor Zm-INVINH1 were co-expressed in N. benthamiana leaves. Bimolecular fluorescence complementation (BiFC) analysis and in vitro enzyme inhibition assays indicated productive complex formation. In summary, the results provide support to the hypothesis that in non-fructan species FEH enzymes may modulate the regulation of CWIs.
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Xu, Huanhuan, Mingxiang Liang, Li Xu, Hui Li, Xi Zhang, Jian Kang, Qingxin Zhao, and Haiyan Zhao. "Cloning and functional characterization of two abiotic stress-responsive Jerusalem artichoke (Helianthus tuberosus) fructan 1-exohydrolases (1-FEHs)." Plant Molecular Biology 87, no. 1-2 (October 22, 2014): 81–98. http://dx.doi.org/10.1007/s11103-014-0262-1.

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Benkeblia, Noureddine, Shuichi Onodera, and Norio Shiomi. "Variation in 1-fructo-exohydrolase (1-FEH) and 1-kestose-hydrolysing (1-KH) activities and fructo-oligosaccharide (FOS) status in onion bulbs. Influence of temperature and storage time." Journal of the Science of Food and Agriculture 85, no. 2 (2004): 227–34. http://dx.doi.org/10.1002/jsfa.1959.

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Dissertations / Theses on the topic "Fructan 1-exohydrolase (1-FEH)"

1

au, J. Zhang@murdoch edu, and Jing Juan Zhang. "Water deficit in bread wheat: Characterisation using genetic and physiological tools." Murdoch University, 2009. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20090227.120256.

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Under terminal water deficit, the impact of stem carbohydrate remobilization has greater significance because post-anthesis assimilation is limited, and grain growth depends on translocation of carbohydrate reserves. The working hypothesis of this thesis is that increases in stem carbohydrates facilitate tolerance to terminal drought in wheat. The goals of this thesis are to examine this hypothesis using physiological and genetic tools; identify genes that are related to QTL for stem carbohydrate; work with wheat and barley breeders to integrate findings into the breeding program of the Department of Agricultural and Food Western Australia. The physiological data of three drought experiments (two years in a glasshouse and one year in the field) suggested the maximum level of stem water soluble carbohydrate (WSC) is not consistently related to grain weight, especially, under water deficit. The patterns of WSC accumulation after anthesis differed depending on variety and suggested that WSC degradation and translocation have different genetic determinants. Most of the carbohydrates in stem WSC in wheat are fructans. Because 1-FEH gene was an important gene in fructan degradation, the three copies of this gene (1-FEH w1, 1-FEH w2 and 1-FEH w3) were isolated from the respective genomes of bread wheat. In addition, the genes were mapped to chromosome locations and coincided with QTL for grain weight. The results of gene expression studies show that 1-FEH w3 had significantly higher levels in the stem and sheath which negatively corresponded to the level of stem WSC in two wheat varieties in both water-deficit and well-watered treatments. Strikingly, the 1-FEH w3 appeared to be activated by water deficit in Westonia but not in Kauz. The results suggest that stem WSC level is not, on its own, a reliable criterion to identify potential grain yield in wheat exposed to water deficit during grain filling. The expression of 1-FEH w3 may provide a better indicator when linked to instantaneous water use efficiency, osmotic potential and green leaf retention, and this requires validation in field grown plants. In view of the location of the contribution to grain filling of stem WSC, this is a potential candidate gene contributing to grain filling. The numerous differences of intron sequences of 1-FEH genes would provide more opportunities to find markers associated with the QTL. A new FEH gene was partially isolated from Chinese Spring and the sequence was closely related to 1-FEH genes. This gene, FEH w4, was mapped to 6AS using Chinese Spring deletion bin lines. The polymorphism of this gene was found between different bread varieties using PCRs and RFLPs, and this allowed the gene to be mapped to two populations of Hanxuan 10 × Lumai 14 and Cranbrook × Halberd. In the population of Hanxuan 10 × Lumai 14, it was close to SSR marker xgwm334 and wmc297 where the QTL of thousand grain weight and grain filling efficiency were located. This result indicated this gene might be another possible candidate gene for grain weight and grain filling in wheat.
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