Measurement of viscoelastic properties of root cell walls affected by low pH in lateral roots of Pisum sativum L.

2001 ◽  
pp. 23-30
Author(s):  
Eiichi Tanimoto ◽  
Shuhei Fujii ◽  
Ryoichi Yamamoto ◽  
Shinobu Inanaga
Keyword(s):  
Pisum Sativum ◽  
Viscoelastic Properties ◽  
Cell Walls ◽  
Lateral Roots ◽  
Low Ph ◽  
Root Cell ◽  
Pisum Sativum L ◽  
Root Cell Walls

scholarly journals Silicon-Induced Changes in Viscoelastic Properties of Sorghum Root Cell Walls

2003 ◽  
Vol 44 (7) ◽  
pp. 743-749 ◽  
Author(s):  
Taiichiro Hattori ◽  
Shinobu Inanaga ◽  
Eiichi Tanimoto ◽  
Alexander Lux ◽  
Miroslava Luxová ◽  
...  
Keyword(s):  
Viscoelastic Properties ◽  
Cell Walls ◽  
Root Cell ◽  
Induced Changes ◽  
Root Cell Walls

scholarly journals Modification of antioxidant systems in cell walls of maize roots by different nitrogen sources

2016 ◽  
Vol 14 (4) ◽  
pp. e0808
Author(s):  
Vesna Hadži-Tašković Šukalović ◽  
Mirjana Vuletić ◽  
Ksenija Marković ◽  
Željko Vučinić ◽  
Natalija Kravić
Keyword(s):  
Cell Wall ◽  
Protein Content ◽  
Cell Walls ◽  
Phenolic Content ◽  
Lateral Roots ◽  
Nitrogen Sources ◽  
Root Cell ◽  
Antioxidant Systems ◽  
Enzymatic Antioxidant ◽  
Root Cell Walls

Antioxidant systems of maize root cell walls grown on different nitrogen sources were evaluated. Plants were grown on a medium containing only NO3- or the mixture of NO3-+NH4+, in a 2:1 ratio. Eleven-day old plants, two days after the initiation of lateral roots, were used for the experiments. Cell walls were isolated from lateral roots and primary root segments, 2-7 cm from tip to base, representing zones of intense or decreased growth rates, respectively. Protein content and the activity of enzymes peroxidase, malate dehydrogenase and ascorbate oxidase ionically or covalently bound to the walls, as well as cell wall phenolic content and antioxidant capacity, were determined. Cell walls of plants grown on mixed N possess more developed enzymatic antioxidant systems and lower non-enzymatic antioxidant defenses than cell walls grown on NO3-. Irrespective of N treatment, the activities of all studied enzymes and protein content were higher in cell walls of lateral compared to primary roots. Phenolic content of cell walls isolated from lateral roots was higher in NO3--grown than in mixed N grown plants. No significant differences could be observed in the isozyme patterns of cell wall peroxidases isolated from plants grown on different nutrient solution. Our results indicate that different N treatments modify the antioxidant systems of root cell walls. Treatment with NO3- resulted in an increase of constitutive phenolic content, while the combination of NO3-+NH4+ elevated the redox enzyme activities in root cell walls.

The effects of IBA on the composition of maize root cell walls

2019 ◽  
Vol 239 ◽  
pp. 10-17 ◽  
Author(s):  
Kristína Šípošová ◽  
Karin Kollárová ◽  
Desana Lišková ◽  
Zuzana Vivodová
Keyword(s):  
Cell Walls ◽  
Root Cell ◽  
Maize Root ◽  
Root Cell Walls

Distribution of Autofluorescence and Esterase and Peroxidase Activities in the Epidermis of Wheat Roots

1979 ◽  
Vol 6 (2) ◽  
pp. 201 ◽  
Author(s):  
MM Smith ◽  
TP O'brien
Keyword(s):  
Cell Walls ◽  
Outer Wall ◽  
Wheat Root ◽  
Root Cell ◽  
Gaeumannomyces Graminis ◽  
Wall Material ◽  
Wheat Roots ◽  
Pig Liver Esterase ◽  
Auto Fluorescence ◽  
Root Cell Walls

In the wheat root, peroxidases and esterases specific for a-naphthyl esters of acetate, propionate and butyrate are concentrated in cell walls, particularly the outer wall of epidermal cells undergoing extension. In contrast esterases specific for β-naphthyl esters of propionate and butyrate were intra- cellular and concentrated in epidermal and outer root-cap cells of the wheat root. Both α-naphthyl and β-naphthyl esters of longer-chain fatty acids proved to be poor substrates. The esterases and peroxidases associated with the outer epidermal wall may well be involved in turnover of phenolic acids cross-linked to polysaccharides. In this regard, ferulic acid and diferulate were shown to be constituents of wheat-root cell walls. The distribution of these substances can also be inferred from autofluorescence. Treatment with a commercial pig-liver esterase was without effect on the auto- fluorescence of the root cell-walls. Culture filtrates from Gaeumannomyces graminis did remove significant amounts of autofluorescent wall material. These preparations contained α-naphthyl acetate esterase as well as many polysaccharide hydrolase activities.

scholarly journals Investigation of Hemicellulose Alteration in Fabaceae Root Cell Walls During Flooding-Induced Aerenchyma Formation

2020 ◽  
Vol 26 (S2) ◽  
pp. 348-351
Author(s):  
Timothy Pegg ◽  
Daniel Gladish ◽  
Richard Edelmann ◽  
Robert Baker
Keyword(s):  
Cell Walls ◽  
Root Cell ◽  
Aerenchyma Formation ◽  
Root Cell Walls

Adsorption and exchange of Ca, Mg and K-ions on the root cell walls of clover and rye-grass

1984 ◽  
Vol 80 (2) ◽  
pp. 181-190 ◽  
Author(s):  
D. E. Amory ◽  
J. E. Dufey
Keyword(s):  
Cell Walls ◽  
Root Cell ◽  
Rye Grass ◽  
Root Cell Walls

Root cell walls and phytochelatins in low-cadmium cultivar of Brassica parachinensis

Pedosphere ◽  
2020 ◽  
Vol 30 (3) ◽  
pp. 426-432 ◽  
Author(s):  
Yan SUN ◽  
Hui YE ◽  
Zebin WEI ◽  
Xuhui KONG ◽  
Qitang WU
Keyword(s):  
Cell Walls ◽  
Root Cell ◽  
Root Cell Walls
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