Abstract The critical developmental switch from heterotrophic to autotrophic growth of plants involves light signaling transduction and the production reactive oxygen species (ROS). ROS function as molecules that regulate multiple processes, including cell death. However, relationship between remains unclear. Here, we identify transcriptional modules composed basic helix-loop-helix bZIP transcription factors PHYTOCHROME-INTERACTING FACTOR1 (PIF1), PIF3, ELONGATED HYPOCOTYL5 (HY5), HY5...

Light signaling plays an essential role in controlling higher plants' early developmental process termed as photomorphogenesis. Transcriptional regulation is a vital mechanism that orchestrated by transcription factors and other regulatory proteins working concert to finely tune gene expression. Although many factors/regulators have been characterized the light-signaling pathway, their interregulation remains largely unknown. Here, we show PHYTOCHROME-INTERACTING FACTOR3 (PIF3) PIF1 directly...

Abstract Photomorphogenesis is a critical plant developmental process that involves light-mediated transcriptome changes, histone modifications, and inhibition of hypocotyl growth. However, the chromatin-based regulatory mechanism underlying this remains largely unknown. Here, we identify ENHANCED PHOTOMORPHOGENIC1 (EPP1), previously known as PICKLE (PKL), an ATP-dependent chromatin remodeling factor chromodomain/helicase/DNA binding family, repressor photomorphogenesis in Arabidopsis...

Abstract Seeds maintain a dormant state to withstand adverse conditions and germinate when become favourable give rise new generation of flowering plants. Seed dormancy germination are tightly controlled by internal external signals. Although phytochrome photoreceptors proposed regulate primary seed dormancy, the underlying molecular mechanism remains elusive. Here we show that REVEILLE1 (RVE1) RVE2 transcription factors promote repress red/far-red-light-reversible downstream B (phyB) in...

miRNAs are small, non-coding RNA that negatively regulate gene expression at post-transcriptional level, which play crucial roles in various physiological and pathological processes, such as development tumorigenesis. Although deep sequencing technologies have been applied to investigate small transcriptomes, their computational methods far away from maturation compared microarray-based approaches. In this study, a comprehensive web server mirTools was developed allow researchers...

Abstract Gas exchange and chlorophyll a fluorescence transient were examined in leaves of sorghum under salt stress high temperature. During treatment with 50 150 m NaCl, photosynthetic rate (Pn) decreased, which could be ascribed to stomatal limitation. Salt had no effect on photosystem II (PSII) activity. At temperatures, PSII function was inhibited sorghum, indicated by the decrease performance index absorption base maximal photochemistry efficiency (Fv/Fm); however, lower salt‐treated...

Seedling deetiolation, a critical process in early plant development, is regulated by an intricate transcriptional network. Here, we identified VQ MOTIF-CONTAINING PROTEIN29 (VQ29) as novel regulator of the photomorphogenic response Arabidopsis (Arabidopsis thaliana). We showed that 29 34 proteins present exhibit activity cells and mutations motif affect VQ29. then functionally characterized VQ29 hypocotyl growth plants overexpressing hyposensitive to far-red low-intensity white light,...

In the southeast of Qinghai‐Tibetan Plateau China, sea buckthorn ( Hippophae rhamnoides L.), which is a thorny nitrogen‐fixing deciduously perennial shrub, has been widely used in forest restoration as pioneer species. our study, two contrasting populations from low and high altitudinal regions were employed to investigate effects drought, ultraviolet‐B (UV‐B) their combination on buckthorn. The experimental design included watering regimes (well watered drought stressed) levels UV‐B (with...

Jerusalem aritichoke (Helianthus tuberosus) is an Angiosperm plant species of the Compositae family, and a C-3 warm-season sunflower. This herbaceous shows significant ecological commercial importance for its strong stress tolerance, very high yield potential more application areas such as chemicals, pharmaceuticals industrial applications. The morphologic, bio-ecological characteristics, utilization applied values H. tuberosus are introduced in present review put forward problems that need...

Abstract Background Homegardens are ecologically and culturally important systems for cultivating medicinal plants wellbeing by healers farmers in Naxi communities of the Sino Himalayan region. The cultivation associated ethnomedical knowledge base maintaining utilizing these resources is at risk with expanded commercialization natural resources, development policies rapid socio-economic change China. Research needed to understand plant species maintained homegardens, their use contribution...

Abstract Light and temperature are two important environmental signals to plants. After dawn, photo-activated phytochromes translocate into the nucleus interact with a family of negative basic helix-loop-helix PIF regulators. Subsequent phosphorylation degradation PIFs triggers series photomorphogenic responses. However, excess light can damage photosynthetic apparatus leads photoinhibition. Plants acclimate balanced state photomorphogenesis avoid photodamage. Here, we show that upregulation...

Temperature is a major signal that governs plant distribution and shapes growth. High ambient temperature promotes thermomorphogenesis without significant induction of heat-stress responses. Although much progress warm temperature-mediated growth has been made during recent years, the thermomorphogenic signalling pathway not well understood. We previously revealed PICKLE (PKL), an ATP-dependent chromatin remodelling factor, negatively controls photomorphogenesis in Arabidopsis thaliana....

Background Jatropha curcas is thought to be a promising biofuel material, but its yield restricted by low ratio of instaminate / staminate flowers (1/10-1/30). Furthermore, valuable information about flower sex differentiation in this plant scarce. To explore the mechanism process J. curcas, transcriptome profiling development was carried out, and certain genes related with were obtained through digital gene expression analysis buds from different phases floral development. Results After...

Blue light triggers the opening of stomata in morning to allow CO2 uptake and water loss through transpiration. During day, plants may experience periodic drought accumulate abscisic acid (ABA). ABA antagonizes blue signalling phosphatidic reduces stomatal aperture. This study reveals a molecular mechanism by which two proteins interact repress control A hypersensitive red 2 (hrb2) mutant has defective ATP-dependent chromatin-remodelling factor, PKL, chromodomain/helicase/DNA binding family....

Seed size is an important agronomic trait determining the yield potential of crops that controlled by growth and development endosperm, embryo, seed coat. The coat endosperm have been proposed to play primary roles in size. Extensive research has carried out on regulation coat, whereas molecular mechanism underlying poorly understood. Recent studies emphasized central role development. proliferation syncytial nuclei cell division during early determine number cells, which plays a fundamental...

The current fitting function of the basic magnetization curve does not provide exact fit necessary for simulation modeling electromechanical devices containing conductive materials, including polymers. Therefore, an odd polynomial based on spectral analysis results under sinusoidal excitation is proposed, and effect studied by comparative analysis. show that provides a better has simple expression, method obtaining new idea selection function.

Jasmonate (JA), as an important signal, plays a key role in multiple processes of plant growth, development and stress response. Nicotine related pyridine alkaloids tobacco (Nicotiana tabacum L.) are essential secondary metabolites. Whether environmental factors control nicotine biosynthesis the underlying mechanism remains previously unreported. Here, we applied physiological biochemical approaches to investigate how salt affects tobacco. We found that induced JA, which subsequently...