Silicon induces metallochaperone‐driven Cd binding to the cell wall and restores redox status through elevated glutathione in Cd‐toxic sugar beet

2021 ◽  
Author(s):  
Ahmad Humayan Kabir ◽  
Urmi Das ◽  
Md Atikur Rahman ◽  
Ki‐Won Lee
Keyword(s):  
Cell Wall ◽  
Sugar Beet ◽  
Redox Status

Developmental changes in cell-wall ferulate and dehydrodiferulates in sugar beet

1999 ◽  
Vol 52 (5) ◽  
pp. 819-827 ◽  
Author(s):  
Gundolf Wende ◽  
Keith W Waldron ◽  
Andrew C Smith ◽  
Christopher T Brett
Keyword(s):  
Cell Wall ◽  
Sugar Beet ◽  
Developmental Changes

Secondary Metabolite- and Endochitinase-Dependent Antagonism toward Plant-Pathogenic Microfungi of Pseudomonas fluorescens Isolates from Sugar Beet Rhizosphere

1998 ◽  
Vol 64 (10) ◽  
pp. 3563-3569 ◽  
Author(s):  
Mette Neiendam Nielsen ◽  
Jan Sørensen ◽  
Johannes Fels ◽  
Hans Christian Pedersen
Keyword(s):  
Biological Control ◽  
Cell Wall ◽  
Sugar Beet ◽  
Pseudomonas Fluorescens ◽  
Secondary Metabolite ◽  
Pythium Ultimum ◽  
Medium Composition ◽  
Fungal Antagonism ◽  
Lipopeptide Antibiotic

ABSTRACT Forty-seven isolates representing all biovars of Pseudomonas fluorescens (biovars I to VI) were collected from the rhizosphere of field-grown sugar beet plants to select candidate strains for biological control of preemergence damping-off disease. The isolates were tested for in vitro antagonism toward the plant-pathogenic microfungi Pythium ultimum and Rhizoctonia solani in three different plate test media. Mechanisms of fungal inhibition were elucidated by tracing secondary-metabolite production and cell wall-degrading enzyme activity in the same media. Most biovars expressed a specific mechanism of antagonism, as represented by a unique antibiotic or enzyme production in the media. A lipopeptide antibiotic, viscosinamide, was produced independently of medium composition by P. fluorescens bv. I, whereas the antibiotic 2,4-diacetylphloroglucinol was observed only in glucose-rich medium and only in P. fluorescens bv. II/IV. Both pathogens were inhibited by the two antibiotics. Finally, in low-glucose medium, a cell wall-degrading endochitinase activity in P. fluorescens bv. I, III, and VI was the apparent mechanism of antagonism toward R. solani. The viscosinamide-producing DR54 isolate (bv. I) was shown to be an effective candidate for biological control, as tested in a pot experiment with sugar beet seedlings infested with Pythium ultimum. The assignment of different patterns of fungal antagonism to the biovars of P. fluorescens is discussed in relation to an improved selection protocol for candidate strains to be used in biological control.

Pectolytic enzyme production by Phoma betae

1972 ◽  
Vol 50 (8) ◽  
pp. 1705-1709 ◽  
Author(s):  
William M. Bugbee
Keyword(s):  
Cell Wall ◽  
Sugar Beet ◽  
Carbon Sources ◽  
Nitrogen Sources ◽  
Culture Cell ◽  
Susceptible Variety ◽  
Wall Material ◽  
Cell Wall Material ◽  
Storage Roots ◽  
Phoma Betae

Phoma betae from decayed sugar beet storage root tissue grew most rapidly in culture at 15C but produced more polygalacturonase (PG) at 20C. When the fungus was supplied with six different nitrogen sources, it produced the most PG on (NH4)2SO4.Assays of dialyzed culture filtrates using sodium polypectate and pectin or cell wall material from storage roots as the carbon sources showed the production of exopolygalacturonase (exo-PG) and endopolygalacturonate trans-eliminase (endo-PGTE). No pectin methyl esterase was detected. Exo-PG and endo-PGTE also were present in decayed sugar beet tissue. Only endo-PGTE was detected within 3 mm of tissue surrounding the rotted area.In culture, cell wall material from the susceptible variety A58 induced more endo-PGTE formation than the resistant 2B. But 2B induced more exo-PG formation than A58. It is suggested that endo-PGTE plays a major role in cell wall degradation because pH 7.5 was optimum for tissue maceration and pH 8.5 for enzyme activity and the advancing margins of rotted tissue contained only endo-PGTE.

scholarly journals Cell Wall Proteins from Sugar Beet Cells in Suspension Culture

1989 ◽  
Vol 89 (2) ◽  
pp. 712-716 ◽  
Author(s):  
Hiroshi Masuda ◽  
Seiichi Komiyama ◽  
Shiro Sugawara
Keyword(s):  
Cell Wall ◽  
Sugar Beet ◽  
Suspension Culture ◽  
Cell Wall Proteins

scholarly journals Sugar Beet (Beta vulgaris) Guard Cells Responses to Salinity Stress: A Proteomic Analysis

2020 ◽  
Vol 21 (7) ◽  
pp. 2331
Author(s):  
Fatemeh Rasouli ◽  
Ali Kiani-Pouya ◽  
Leiting Li ◽  
Heng Zhang ◽  
Zhonghua Chen ◽  
...  
Keyword(s):  
Cell Wall ◽  
Sugar Beet ◽  
Molecular Mechanisms ◽  
Stress Proteins ◽  
Lipid Transfer Protein ◽  
Guard Cells ◽  
Ascorbate Oxidase ◽  
Carbon Gain ◽  
Inorganic Pyrophosphatase ◽  
Cell Wall Modification

Soil salinity is a major environmental constraint affecting crop growth and threatening global food security. Plants adapt to salinity by optimizing the performance of stomata. Stomata are formed by two guard cells (GCs) that are morphologically and functionally distinct from the other leaf cells. These microscopic sphincters inserted into the wax-covered epidermis of the shoot balance CO2 intake for photosynthetic carbon gain and concomitant water loss. In order to better understand the molecular mechanisms underlying stomatal function under saline conditions, we used proteomics approach to study isolated GCs from the salt-tolerant sugar beet species. Of the 2088 proteins identified in sugar beet GCs, 82 were differentially regulated by salt treatment. According to bioinformatics analysis (GO enrichment analysis and protein classification), these proteins were involved in lipid metabolism, cell wall modification, ATP biosynthesis, and signaling. Among the significant differentially abundant proteins, several proteins classified as “stress proteins” were upregulated, including non-specific lipid transfer protein, chaperone proteins, heat shock proteins, inorganic pyrophosphatase 2, responsible for energized vacuole membrane for ion transportation. Moreover, several antioxidant enzymes (peroxide, superoxidase dismutase) were highly upregulated. Furthermore, cell wall proteins detected in GCs provided some evidence that GC walls were more flexible in response to salt stress. Proteins such as L-ascorbate oxidase that were constitutively high under both control and high salinity conditions may contribute to the ability of sugar beet GCs to adapt to salinity by mitigating salinity-induced oxidative stress.

scholarly journals Sugar beet (Beta vulgaris) pectins are covalently cross-linked through diferulic bridges in the cell wall

2005 ◽  
Vol 66 (24) ◽  
pp. 2800-2814 ◽  
Author(s):  
Marie-Christine Ralet ◽  
Gwénaëlle André-Leroux ◽  
Bernard Quéméner ◽  
Jean-François Thibault
Keyword(s):  
Cell Wall ◽  
Sugar Beet ◽  
Beta Vulgaris
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