Results 111 to 120 of about 5,001 (143)

Increased expression of fructan 1-exohydrolase in rhizophores of Vernonia herbacea during sprouting and exposure to low temperature

Journal of Plant Physiology, 2011
Rhizophores of Vernonia herbacea, an Asteraceae found in the Brazilian Cerrado, store high amounts of fructans that vary in composition over the phenological cycle. Fructan 1-exohydrolase (1-FEH) activity is detectable during the sprouting phase, mainly in the proximal regions of rhizophores, of plants induced to sprout by defoliation and/or cold ...
Amanda Francine, Asega, João Roberto O, do Nascimento, Maria Angela M, Carvalho   +2 more
openaire   +3 more sources

Apoplastic maize fructan exohydrolase Zm-6-FEH displays substrate specificity for levan and is induced by exposure to levan-producing bacteria.

International Journal of Biological Macromolecules, 2020
Fructan exohydrolases (FEHs) are structurally related to cell wall invertases. While the latter are ubiquitous in higher plants, the role of FEHs in non-fructan species has remained enigmatic.
Xiaojia Huang, W. Luo, Silin Wu, Yuming Long, Rui Li, Fenghua Zheng, S. Greiner, T. Rausch, Hongbo Zhao   +8 more
semanticscholar   +1 more source

Fructan exohydrolases (FEHs) are upregulated by salicylic acid together with defense‐related genes in non‐fructan accumulating plants

Physiologia Plantarum, 2023
AbstractThe identification of several fructan exohydrolases (FEHs, EC 3.2.1.80) in non‐fructan accumulating plants raised the question of their roles. FEHs may be defense‐related proteins involved in the interactions with fructan‐accumulating microorganisms.
Nguyen, Thi Ngoc Hanh, Leclerc, Laëtitia, Manzanares-Dauleux, Maria, Gravot, Antoine, Vicré, Maïté, Morvan-Bertrand, Annette, Prud'Homme, Marie‐pascale   +6 more
openaire   +4 more sources

Fructan chemical structure and sensitivity to an exohydrolase

Carbohydrate Research, 1991
A fructan exohydrolase selective for (2----1)-linked terminal fructosyl linkages, isolated from barley (Hordeum vulgare L. cv. Morex) stems and leaf sheaths, was used to elucidate the chemical structures of several oligomeric fructans extracted from liliaceous and graminaceous species.
Bancal, Pierre, Henson, C.A., Gaudillère, J.P., Carpita, N.C.   +3 more
openaire   +3 more sources

Plant fructan exohydrolases: a role in signaling and defense?

Trends in Plant Science, 2004
Fructans are fructose oligomers and polymers synthesized by a small number of plant and bacterial species and mainly function as reserve carbohydrates. The terminal fructosyl-fructose linkages can be degraded by fructan exohydrolases (FEHs), occurring in bacteria, fungi and fructan plants.
Wim, Van den Ende, Barbara, De Coninck, André, Van Laere   +2 more
openaire   +2 more sources

Fructan 1-exohydrolase is associated with flower opening in Campanula rapunculoides

Functional Plant Biology, 2007
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 ...
Katrien, Le Roy, Rudy, Vergauwen, Veerle, Cammaer, Midori, Yoshida, Akira, Kawakami, André, Van Laere, Wim, Van den Ende   +6 more
openaire   +2 more sources

Hexokinase-dependent sugar signaling represses fructan exohydrolase activity in Lolium perenne1

Functional Plant Biology, 2010
Defoliation of perennial ryegrass (Lolium perenne L.) by grazing animals leads to fructan mobilisation via an increase of fructan exohydrolase (FEH) activity. To highlight the regulation of fructan metabolism in perennial ryegrass, the role of sugars as signalling molecules for regulation of FEH activity after defoliation was evaluated.
Jérémy Lothier, Bertrand Lasseur, Marie-Pascale Prud’homme, Annette Morvan-Bertrand   +3 more
openaire   +1 more source

Expression and purification of plant fructan exohydrolases and their potential applications in fructose production

International Journal of Biological Macromolecules, 2018
Inulinases from microorganisms have been extensively studied for their role in the production of fructose from fructan. Fructan can also be hydrolyzed by plant fructan exohydrolases (FEHs), but these enzymes have not been used to produce fructose commercially.
Wenyue, Zhan, Lijin, Jin, Jiao, Jiao, Xi, Zhang, Yan, Zhang, Haiyan, Zhao, Mingxiang, Liang   +6 more
openaire   +2 more sources

Crystallization and preliminary X-ray diffraction study of fructan 1-exohydrolase IIa fromCichorium intybus

Acta Crystallographica Section D Biological Crystallography, 2004
Fructan 1-exohydrolase IIa (1-FEH IIa), a plant enzyme involved in fructan breakdown, has been crystallized using the hanging-drop vapour-diffusion method at 277 K. The crystals are tetragonal, belonging to space group P4(1)2(1)2 or P4(3)2(1)2, with unit-cell parameters a = 139.83, b = 139.83, c = 181.94 A.
Maureen, Verhaest, Wim, Van den Ende, Midori, Yoshida, Katrien, Le Roy, Yves, Peeraer, Stefaan, Sansen, Camiel J, De Ranter, André, Van Laere, Anja, Rabijns   +8 more
openaire   +2 more sources

Structures of fructan and galactan from Polygonatum cyrtonema and their utilization by probiotic bacteria

Carbohydrate Polymers, 2021
Mingyi Wu
exaly