pyrus/glutathione

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[Overexpression of the glutathione S-transferase gene from Pyrus pyrifolia fruit improves tolerance to abiotic stress in transgenic tobacco plants].

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Glutathione S-transferases (GSTs) are ubiquitous enzymes in animals and plants, and they are multifunctional proteins encoded by a large gene family. GSTs are involved in response to the oxidative stress including drought, salt, heavy metals, and so on. Under oxidative stress, the excessive reactive

Enhanced tolerance and accumulation of heavy metal ions by engineered Escherichia coli expressing Pyrus calleryana phytochelatin synthase.

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Contamination by heavy metals is a major environmental problem worldwide and microbial bioremediation is an efficient method for removing this type of pollution. The plant enzymephytochelatin synthase (PCS, also known as glutathione g-glutamylcysteinyltransferase, EC2.3.2.15) involved in the

Two pear glutathione S-transferases genes are regulated during fruit development and involved in response to salicylic acid, auxin, and glucose signaling.

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Two genes encoding putative glutathione S-transferase proteins were isolated from pear (Pyrus pyrifolia) and designated PpGST1 and PpGST2. The deduced PpGST1 and PpGST2 proteins contain conserved Glutathione S-transferase N-terminal domain (GST_N) and Glutathione S-transferase, C-terminal domain

Antioxidant content of fresh-cut pears stored in high-O2 active packages compared with conventional low-o2 active and passive modified atmosphere packaging.

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The antioxidant content of fresh-cut 'Flor de Invierno' ( Pyrus communis L.) pears dipped into a 0.75% w/v N-acetylcysteine + 0.75% w/v glutathione solution and packaged under 70 kPa of O2 atmospheres (HOA) was evaluated as an alternative to actively modified low-O2 atmosphere (LOA) and passively

Enhancement of spermidine content and antioxidant capacity in transgenic pear shoots overexpressing apple spermidine synthase in response to salinity and hyperosmosis.

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In our previous work, an apple spermidine synthase (SPDS)-overexpressing transgenic European pear (Pyrus communis L. 'Ballad'), line no. 32 (#32), demonstrated attenuated susceptibility to stress treatment. In the current paper, changes in enzymatic and non-enzymatic antioxidant capacity of the

Proteomic analysis of peel browning of 'Nanguo' pears after low-temperature storage.

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BACKGROUND Postharvest ripening of the 'Nanguo' pear (Pyrus ussuriensis Maxim.) can be impeded by low-temperature storage. However, pears after long-term refrigeration are prone to peel browning when returned to room temperature conditions. This study investigated the browning mechanism of 'Nanguo'

[Relationship between breaking of dormancy and reactive oxygen species metabolism in flower buds of pear].

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The metabolism of reactive oxygen species in pear (Pyrus bretschneideri Rehd.) flower buds changes greatly during their natural dormancy in winter. The O(-.)(2) production rate increases rapidly during the period of dormancy, but decreases when dormancy finishes (Fig. 5). H(2)O(2) content goes up

Use of UV-C treatment to inhibit the microbial growth and maintain the quality of Yali pear.

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The effects of UV-C radiation on microbial growth in vitro (Monilinia fruticola) and in inoculated Yali pears (Pyrus bretschneideri Rehd.) were investigated. Moreover, postharvest quality and the activities of defense and antioxidant enzymes were analyzed after the pears were exposed to UV-C

Spermidine levels are implicated in heavy metal tolerance in a spermidine synthase overexpressing transgenic European pear by exerting antioxidant activities.

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To verify whether spermidine synthase (SPDS) can confer long-term multi-heavy metal tolerance, in vitro shoots of a transgenic European pear (Pyrus communis L. 'Ballad') line #32 overexpressing apple SPDS (MdSPDS1), as well as a wild type (WT) line, were subjected to stress using either CdCl(2),

Exogenous Calcium Improved Resistance to Botryosphaeria dothidea by Increasing Autophagy Activity and Salicylic Acid Level in Pear

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Pear ring rot, caused by Botryosphaeria dothidea, is one of the most serious diseases in pear. Calcium (Ca²⁺) was reported to play a key role in the plant defense response. Here, we found that exogenous calcium could enhance resistance to B. dothidea in pear leaves. Less

Red 'Anjou' pear has a higher photoprotective capacity than green 'Anjou'.

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Photoprotective function of anthocyanins along with xanthophyll cycle and antioxidant system in fruit peel was investigated in red 'Anjou' vs green 'Anjou' pear (Pyrus communis) during fruit development and in response to short-term exposure to high light. The sun-exposed peel of red 'Anjou' had

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