Transcriptomic and Metabolomic Analyses Reveals That Exogenous Methyl Jasmonate Regulates Galanthamine Biosynthesis in Seedlings.

The Amaryllidaceae alkaloid galanthamine (Gal) in is a secondary metabolite that has been used to treat Alzheimer's disease. Plant secondary metabolism is affected by methyl jasmonate (MeJA) exposure, although the regulatory mechanisms of MeJA on seedlings remains largely unknown. In the present study, 75, 150, and 300 μM MeJA were used as treatments on seedlings for 7, 14, 21, and 28 days, while 0 μM MeJA was used as the control (MJ-0).

Effect of Exogenous Gibberellin, Paclobutrazol, Abscisic Acid, and Ethrel Application on Bulblet Development in .

species have great ornamental and medicinal values; however, their low regeneration efficiency significantly restricts their commercial production. Exogenous hormone application is an effective way to promote bulblet development, but their effect on has not been verified to date. In the present study, we examined the effect of different exogenous hormones on bulblet development in , and found that gibberellic acid (GA) significantly inhibited, whereas paclobutrazol (PBZ), abscisic acid (ABA), and ethrel promoted bulblet development, especially PBZ, a GA biosynthesis inhibitor.

Transcriptome Analysis of Different Tissues Reveals Key Genes Associated With Galanthamine Biosynthesis in .

is a traditional medicinal plant containing the bioactive compound galanthamine (Gal), a type of Amaryllidaceae alkaloid and can be used to treat Alzheimer's disease. However, research on its genome or transcriptome and associated genes in the biosynthetic pathway is incomplete. In this study, we estimated the nuclear genome size of this species to be 29.

Changes in carbohydrate metabolism and endogenous hormone regulation during bulblet initiation and development in Lycoris radiata.

Background: Lycoris species have great ornamental and medicinal values; however, their low regeneration efficiency seriously restricts their commercial production. Understanding the mechanism of bulblet propagation in this genus, which has remained underexplored to date, could provide a theoretical basis for improving the reproductive efficiency. Therefore, we studied the bulblet initiation and developmental processes in Lycoris radiata.

[Prognostic value of microRNA-122 combined with APACHE II score in patient with acute respiratory distress syndrome].

Objective: To investigate the prognostic value of microRNA-122 (miR-122) combined with acute physiology and chronic health evaluation II (APACHE II) score in patient with acute respiratory distress syndrome (ARDS), and to provide evidence for the diagnosis and treatment of ARDS.

Methods: ARDS patients admitted to the Third People's Hospital of Haikou City from January 2016 to December 2018 were enrolled. The general data, serum miR-122 expression level and APACHE II score within 24 hours were collected.

The analyses of risk factors for COPD in the Li ethnic group in Hainan, People's Republic of China.

Objective: To study the risk factors for chronic obstructive pulmonary disease (COPD) in Li population in Hainan province, People's Republic of China.

Methods: Li people above 40 years of age from Hainan were chosen by stratified random cluster sampling between 2012 and 2014. All participants were interviewed with a home-visiting questionnaire, and spirometry was performed on all eligible participants.

Variants in multiple genes polymorphism association analysis of COPD in the Chinese Li population.

Background: It is known that the contribution of risk alleles to chronic obstructive pulmonary disease (COPD) may vary between populations. Further, previous studies involving various ethnic groups have revealed associations between COPD and genetic polymorphisms in families with sequence similarity 13, member A (FAM13A), micro-RNA 2054 (MIR2054), SET domain containing protein 7 (SETD7), ring finger protein 150 (RNF150), hedgehog interacting protein (HHIP), and vascular endothelial growth factor A (VEGFA). Our objective was to explore the association between these gene polymorphism and COPD in members of Chinese Li minority population.

The interaction between nitrogen availability and auxin, cytokinin, and strigolactone in the control of shoot branching in rice (Oryza sativa L.).

Nitrogen availability and cytokinin could promote shoot branching in rice, whereas auxin and strigolactone inhibited it. The interaction between nitrogen availability and the three hormones is discussed. Rice shoot branching is strongly affected by nitrogen availability and the plant hormones auxin, cytokinin, and strigolactone; however, the interaction of them in the regulation of rice shoot branching remains a subject of debate.

Differential regulation of proteins in rice (Oryza sativa L.) under iron deficiency.

Sixty-three proteins were identified to be differentially accumulated due to iron deficiency in shoot and root. The importance of these proteins alterations on shoot physiology is discussed. Iron (Fe) is an essential micronutrient for plant growth and its accumulation affects the quality of edible plant organs.