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11 résultats
Micropropagation of pear (Pyrus sp.).
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Elements of micropropagation include establishment of shoot tip cultures, proliferation, rooting, and acclimatization of the resulting plantlets. The wide genetic variation in Pyrus makes micropropagation challenging for many genotypes. Initiation of shoots is most successful from forced dormant
Reciprocal regulation of Ca²+-activated outward K+ channels of Pyrus pyrifolia pollen by heme and carbon monoxide.
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• The regulation of plant potassium (K+) channels has been extensively studied in various systems. However, the mechanism of their regulation in the pollen tube is unclear. • In this study, the effects of heme and carbon monoxide (CO) on the outward K+ (K+(out)) channel in pear (Pyrus pyrifolia)
Potassium flux in the pollen tubes was essential in plant sexual reproduction.
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Potassium channels are controlling K (+) transport across plasma membrane and thus playing a central role in all aspects of osmolarity as well as numerous other functions in plants including in sexual reproduction. We have used whole-cell and single-channel patch-clamp recording techniques
Calcium content and its correlated distribution with skin browning spot in bagged Huangguan pear.
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Skin browning spot (SBS) is an important physiology disorder that often occurs in bagged fruit at the mature stage in the Huangguan (Pyrus bretschneideri × Pyrus pyrifolia) pear. Using atomic absorption spectrometry, X-ray microanalysis, and the potassium-pyroantimonate precipitation method, the
Involvement of hydrogen peroxide in the regulation of senescence in pear.
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Endogenous peroxide levels in pear fruit (Pyrus communis) were measured using a titanium assay method, and were found to increase during senescence in both Bartlett and Bosc varieties. Application of glycolic acid or xanthine, serving as substrates for the formation of H(2)O(2), increased the
Optimization of edible coating formulations for improving postharvest quality and shelf life of pear fruit using response surface methodology.
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The effect of composite edible films containing soy protein isolate (SPI) in combination with additives like hydroxypropyl methylcellulose (HPMC) and olive oil on 'Babughosha' pear (Pyrus communis L.) stored at ambient temperature (28 ± 5 °C and 60 ± 10% RH) was evaluated using Response surface
Improvement of post-harvest quality of pear fruit with optimized composite edible coating formulations.
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Application of edible coatings is a suitable method to maintain the quality and reduce post-harvest losses in fresh vegetables and fruits. Pear fruits being climacteric have a short shelf life, and coating is considered as one of the most popular techniques to prolong its shelf life.The present
Benzoate-CoA ligase contributes to the biosynthesis of biphenyl phytoalexins in elicitor-treated pear cell cultures.
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Benzoate-Coenzyme A ligase enzyme activity catalyzing the conversion of free benzoic acid to benzoyl-CoA was detected and biochemically characterized in the elicitor-treated pear cell cultures. Asian pear (Pyrus pyrifolia) is an economically and nutritionally important fruit-bearing tree of the
Identification of Shaker K+ channel family members in Rosaceae and a functional exploration of PbrKAT1.
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PbrKAT1, which is inhibited by external Na+ in Xenopus laevis oocytes, is characterized as encoding a typical inward rectifying channel that is mainly expressed in guard cells. Potassium (K+) is the most abundant cation in plant cells necessary for plant growth and development.
Genome-wide identification, evolution, and expression analysis of the KT/HAK/KUP family in pear.
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The K+ transporter/high-affinity K+/K+ uptake (KT/HAK/KUP) family, as one of the largest K+ transporter families in higher plants, plays an essential role in plant growth, mineral element absorption, salt stress tolerance, and other physiological processes. However, little is known about this family
Genome-wide identification of the HKT genes in five Rosaceae species and expression analysis of HKT genes in response to salt-stress in Fragaria vesca.
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BACKGROUND
The high-affinity potassium transporter (HKT) gene family is implicated in the regulation of response to salt stress in different plants. Yet, knowledge remains very limited for them in the Rosaceae species. The whole genome sequences of the five Rosaceae species, including Fragaria vesca
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