PaWOX3 and PaWOX3B Regulate Flower Number and the Lip Symmetry of Phalaenopsis.

The standout characteristic of the orchid perianth is the transformation of the upper median petal into a distinctively formed lip, which gives orchid flowers their typically zygomorphic symmetry and makes them the most popular ornamental plants worldwide. To study orchid flower development, two WUSCHEL-related homeobox (WOX) genes, PaWOX3 and PaWOX3B, were identified in Phalaenopsis. PaWOX3 and PaWOX3B mRNAs accumulate abundantly during early reproductive development and perianths of young buds, significantly decreasing in mature flowers and absent in vegetative leaves and roots.

OAF is a DAF-like gene that controls ovule development in plants.

We previously found that the RING-type E3 ligase DEFECTIVE IN ANTHER DEHISCENCE1- (DAD1-) Activating Factor (DAF) controls anther dehiscence by activating the jasmonate biosynthetic pathway in Arabidopsis. Here, we show that in Arabidopsis, the DAF ancestor was duplicated into three genes (DAF, Ovule Activating Factor (OAF), DAFL2), which evolved divergent partial functions from their ancestor through subfunctionalization. In this case, DAF-DAD1-JA signaling regulates anther dehiscence, whereas OAF controls ovule development by negatively regulating cinnamyl alcohol dehydrogenase 9 (CAD9) activity and being negatively regulated by miR847 itself in Arabidopsis.

The relationship between vitamin D levels in umbilical cord blood and infantile eczema.

A total of 179 normal full-term pregnant women and their newborns were randomly selected. Umbilical venous blood was extracted after the delivery, and the serum level of 25(OH)D3 was measured. Forty 2 days, 3 months, 6 months, and one year after the birth to be asked about the occurrence and development of infant eczema.

Regulatory network for FOREVER YOUNG FLOWER-like genes in regulating Arabidopsis flower senescence and abscission.

FOREVER YOUNG FLOWER (FYF) has been reported to play an important role in regulating flower senescence/abscission. Here, we functionally analyzed five Arabidopsis FYF-like genes, two in the FYF subgroup (FYL1/AGL71 and FYL2/AGL72) and three in the SOC1 subgroup (SOC1/AGL20, AGL19, and AGL14/XAL2), and showed their involvement in the regulation of flower senescence and/or abscission. We demonstrated that in FYF subgroup, FYF has both functions in suppressing flower senescence and abscission, FYL1 only suppresses flower abscission and FYL2 has been converted as an activator to promote flower senescence.

[Ecological quality assessment and the impact of urbanization based on RSEI model for Nanjing, Jiangsu Province, China].

Using Landsat 5/TM and Landsat 8/OLI images in 2000 and 2017, based on remote sensing ecological index (RSEI) model, combined with meteorological observation data and socio-economic data in Nanjing from 2000 to 2017, we analyzed and evaluated the ecological environment changes and the characteristic ecological areas in Nanjing. The results showed that the average RSEI of Nanjing decreased from 0.626 to 0.

HIF‑1α promotes NLRP3 inflammasome activation in bleomycin‑induced acute lung injury.

The inflammatory response is one of the most important factors in the occurrence and development of acute lung injury (ALI). Hypoxia‑inducible factor‑1α (HIF‑1α) and the NOD‑like receptor 3 (NLRP3) inflammasome have been demonstrated to serve an important role in the pathogenesis of ALI. The objective of the present study was to investigate whether HIF‑1α could regulate activation of the NLRP3 inflammasome and its potential function and specific mechanism in bleomycin (BLM)‑induced ALI.

[Early identification of refractory Mycoplasma pneumoniae pneumonia in children].

Objective: To investigate the clinical indicators for early identification of refractory Mycoplasma pneumoniae pneumonia (RMPP) in children.

Methods: The clinical data of 142 children with Mycoplasma pneumoniae pneumonia (MPP) between January 2014 and June 2015 were retrospectively studied. Among the 142 children, there were 32 cases of RMPP and 110 cases of non-refractory MPP.