Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Query: EC:2.1.1.37 (
DNA methyltransferase
)
4,983
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
The economic value of fruit is reduced by having a short shelf life. Whangkeumbae is a type of sand pear (
Pyrus pyrifolia
) considered a climacteric fruit. The pear is famous for its smooth surface and good flavor. However, its shelf life is very short because of senescence and disease after harvest and a burst of ethylene (ET) production prompting the onset of fruit ripening. In plants, ETHYLENE INSENSITIVE3 (EIN3) and EIN3like (EIL), located in the nucleus, are important components of the ET signaling pathway and act as transcription factors.
EIN3
s and
EIL
s belong to a small family involved in regulating the expression of ethylene response factor gene (
ERF
), whose encoding protein is the final component in the ET signaling pathway. The mutation of these components will cause defects in the ethylene pathway. In this study, one gene encoding an EIN3 was cloned and identified from Whangkeumbae and designated
PpEIN3b
. The deduced PpEIN3b contained a conserved EIN3 domain, a bipartite nuclear localization signal profile (NLS_BP), and an N-6 adenine-specific
DNA methylase
signature (N6_MTASE). PpEIN3b belongs to the EIN3 super-family by phylogenetic analysis. Quantitative RT-PCR (qRT-PCR) analysis revealed that
PpEIN3b
was preferentially expressed in fruit. Additionally, its expression was developmentally regulated during fruit ripening and senescence. Furthermore,
PpEIN3b
transcripts were obviously repressed by
salicylic acid
(SA) and glucose treatment in pear fruit and in diseased fruit, while it was significantly induced by 1-aminocyclopropane-1-carboxylic acid (ACC) treatment. Taken together, our results reveal the expression and regulation profiles of
PpEIN3b
and suggest that
PpEIN3b
might integrate SA, glucose, and ACC signaling to regulate fruit ripening and senescence in pear, which would provide a candidate gene for this regulation to obtain fruit with a long shelf life and improved economic value.
...
PMID:Expression and Regulation of
PpEIN3b
during Fruit Ripening and Senescence via Integrating SA, Glucose, and ACC Signaling in Pear (
Pyrus pyrifolia
Nakai. Whangkeumbae). 3123 62
