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catalase/картофель

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Effect of hydrogen peroxide on catalase gene expression, isoform activities and levels in leaves of potato sprayed with homobrassinolide and ultrastructural changes in mesophyll cells

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The effect of hydrogen peroxide (H2O2) on catalase (CAT) isoform activities and amounts and on mRNA levels was studied in leaves from potato plants untreated and treated with homobrassinolide (HBR). Northern blot analysis revealed that 100 mm H2O2 supplied

Expression of a cloned sweet potato catalase SPCAT1 alleviates ethephon-mediated leaf senescence and H₂O₂ elevation.

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In this report a full-length cDNA, SPCAT1, was isolated from ethephon-treated mature L3 leaves of sweet potato. SPCAT1 contained 1479 nucleotides (492 amino acids) in its open reading frame, and exhibited high amino acid sequence identities (ca. 71.2-80.9%) with several plant catalases, including

Three-phase partitioning as a rapid and easy method for the purification and recovery of catalase from sweet potato tubers (Solanum tuberosum).

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Three-phase partitioning (TPP) was used to purify and recover catalase from potato crude extract. The method consists of ammonium sulfate saturation, t-butanol addition, and adjustment of pH, respectively. The best catalase recovery (262 %) and 14.1-fold purification were seen in the interfacial

Ascorbate peroxidase and catalase cooperate for protection against hydrogen peroxide generated in potato tubers during low-temperature storage.

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We investigated the behavior of the antioxidant enzymes, superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APx), in potato tubers during storage at low temperature. SOD activity increased temporarily within 3 weeks and was higher at 1 degree C than at 20 degrees C. APx activity

Molecular cloning and nucleotide sequence of full-length cDNA for sweet potato catalase mRNA.

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A nearly full-length cDNA clone for catalase (pCAS01) was obtained through immunological screening of cDNA expression library constructed from size-fractionated poly(A)-rich RNA of wounded sweet potato tuberous roots by Escherichia coli expression vector-primed cDNA synthesis. Two additional

Expression of tobacco class II catalase gene activates the endogenous homologous gene and is associated with disease resistance in transgenic potato plants.

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We have previously shown that healthy potato plants respond poorly to salicylic acid (SA) for activating disease resistance against the late blight fungal pathogen Phytophthora infestans. However, SA is essential for the establishment of potato systemic acquired resistance (SAR) against P. infestans

Catalase and alternative oxidase cooperatively regulate programmed cell death induced by beta-glucan elicitor in potato suspension cultures.

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In potato (Solanum tuberosum L.) suspension cells, the expression of the gene encoding alternative oxidase (AOX) and H2O2 accumulation were induced by treatment with beta-glucan elicitor. The inhibition of catalase activity enhanced both AOX mRNA expression and the production of H2O2, whereas the

Characterization of a pathogen-induced potato catalase and its systemic expression upon nematode and bacterial infection.

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We have isolated a cDNA encoding a catalase (Cat2St) by differential screening of a cDNA library constructed from potato roots infected with the cyst nematode Globodera pallida. Expression analysis confirmed the local induction of Cat2St and showed that it was highest at the adult stage of the

Superoxide Dismutase, Catalase, and alpha-Tocopherol Content of Stored Potato Tubers.

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Activated oxygen or oxygen free radical mediated damage to plants has been established or implicated in many plant stress situations. The extent of activated oxygen damage to potato (Solanum tuberosum L.) tubers during low temperature storage and long-term storage is not known. Quantitation of

Catalase activity is modulated by calcium and calmodulin in detached mature leaves of sweet potato.

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Catalase (CAT) functions as one of the key enzymes in the scavenging of reactive oxygen species and affects the H2O2 homeostasis in plants. In sweet potato, a major catalase isoform was detected, and total catalase activity showed the highest level in mature leaves (L3) compared to immature (L1) and

Changes in catalase activity in potato tubers, induced by immunoregulators.

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Inhibition of activity of catalase from potato tubers by salicylic and succinic acids.

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Antioxidative system in sweet potato root is activated by low-temperature storage.

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Sweet potato is susceptible to chilling injury during low-temperature storage. To explore the correlation between chilling injury and reactive oxygen species (ROS) metabolism, the content of ROS and the activities and gene expression of antioxidant enzymes were analyzed in the typical

Bacillus solani sp. nov., isolated from rhizosphere soil of a potato field.

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A novel Gram-stain-positive, endospore-forming bacterium, designated strain FJAT-18043T, was isolated from a soil sample of a potato field in Xinjiang Autonomous Region, China. Cells were rods that were catalase-positive and motile by peritrichous flagella. The strain grew at 20-45 °C (optimum 35

Dynamic proteomic profile of potato tuber during its in vitro development.

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Potato tuberization is a complicated biochemical process, which is dependent on external environmental factors. Tuber development in potato consists of a series of biochemical and morphological processes at the stolon tip. Signal transduction proteins are involved in the source-sink transition
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