High-throughput identification of Prunus mume freezing-tolerance genes based on yeast screening system and functional verification of PmRCI2-3 in Arabidopsis.

Prunus mume tops the ten most famous flowers of China with high ornamental value, and low temperature is the main factor limiting its northward migration. Cold resistance improvement is one of the important breeding directions of Rosaceae ornamental plants, especially the Prunus mume. Here, 29 genes from P.

Genetic diversity assessment of clonal plant Rosa persica in China.

Rosa persica is considered a clonal plant because it is mainly propagated by clonal growth. Due to environmental degradation and habitat devastation, R. persica has been listed as a national second-class protected plant in China.

Whether niche changes promote the evolution of species: a case study of in Asia and North America.

Ecological changes have been observed to promote rates of lineage diversification, yet the precise roles of ecological factors, species evolution, and environmental variability in driving species diversity remain research hot spots. The association between ecological change and lineage diversification, particularly with regard to the size of the time scale, remains poorly understood. To explore whether ecological change facilitates species evolution, we focused on the unique family Paeoniaceae, which encompasses both herbaceous and woody taxa, to investigate the evolutionary rates.

Chromosome-level genome assembly of banaba (Lagerstroemia speciosa L.).

Lagerstroemia speciosa is a famous medicinal and ornamental plant of the Lagerstroemia genus, with large and gorgeous flowers and a flowering period of 3 to 5 months. L. speciosa extracts have been used for many years in folk medicine to treat diabetes.

Floral Elegance Meets Medicinal Marvels: Traditional Uses, Phytochemistry, and Pharmacology of the Genus L.

The genus L. (Lythraceae), known for its exquisite flowers and prolonged flowering period, is commonly employed in traditional medicinal systems across Asian countries, where it has always been consumed as tea or employed to address ailments such as diabetes, urinary disorders, coughs, fevers, inflammation, pain, and anesthesia. Its diverse uses may be attributed to its rich active ingredients.

Targeted metabolite and molecular profiling of carotenoids in rose petals: A step forward towards functional food applications.

Given the increasing consumer demand for natural and functional foods, rose petals offer a promising novel ingredient for food innovation, especially yellow and orange rose petals rich in carotenoids, making them ideal for food processing and color retention. Despite their potential, the metabolic profile of carotenoids in roses has not yet been fully explored. Therefore, the present study aimed to provide a comprehensive analysis of carotenoid metabolism in rose petals during three developmental stages.

CfSGR1 and CfSGR2 from Cryptomeria fortunei exhibit contrasting responses to hormones and abiotic stress in transgenic Arabidopsis.

Stay-green (SGR) genes are pivotal regulatory genes in the context of plant chlorophyll metabolism, but few studies on SGR homologues in Cryptomeria fortunei have been previously reported. We cloned two CfSGR genes and overexpressed them in Arabidopsis to explore their functions. Full-length CfSGR1 and CfSGR2 are 1265 and 1197 bp, encompassing open reading frames (ORFs) encoding 274 and 276 amino acids, respectively.

Floral volatile benzenoids/phenylpropanoids: biosynthetic pathway, regulation and ecological value.

Benzenoids/phenylpropanoids, the second most diverse group of plant volatiles, exhibit significant structural diversity and play crucial roles in attracting pollinators and protecting against pathogens, insects, and herbivores. This review summarizes their complex biosynthetic pathways and regulatory mechanisms, highlighting their links to plant growth, development, hormone levels, circadian rhythms, and flower coloration. External factors like light, humidity, and temperature also influence their biosynthesis.

Genome-wide analysis of glutathione S-transferase genes in four Prunus species and the function of PmGSTF2, activated by PmMYBa1, in regulating anthocyanin accumulation in Prunus mume.

Glutathione S-transferases (GSTs) are proteases with multiple physiological functions and play an important role in plant responses to abiotic stresses. Nevertheless, there is a paucity of systematic research on GST genes in Prunus genus. Here, 330 GST genes in four Prunus species were identified for the first time and classified into eight subgroups based on protein sequence and conserved structure, among which Tau subfamily genes had the largest number.

Multi-omics analyzes of Rosa gigantea illuminate tea scent biosynthesis and release mechanisms.

Rose is an important ornamental crop cultivated globally for perfume production. However, our understanding of the mechanisms underlying scent production and molecular breeding for fragrance is hindered by the lack of a reference genome for tea roses. We present the first complete telomere-to-telomere (T2T) genome of Rosa gigantea, with high quality (QV > 60), including detailed characterization of the structural features of repetitive regions.

Effects of calcium ions and cell wall deposition on the pollen viability of Paeonia lactiflora after cryopreservation.

Four cultivars of Paeonia lactiflora pollen have a different viability after cryopreservation, and that the difference of pollen viability is related to calcium ions and cell wall deposition. Cryopreservation is a vital technique for preserving germplasm resources, offering extensive application prospects. Understanding the factors influencing pollen viability after cryopreservation is crucial for the permanent preservation and exchange of pollen resources.

Functional Study on the Key Gene Related to the Lily Bulblets Formation.

Oriental hybrid lilies, known for their vibrant colors, diverse flower shapes, and long blooming seasons, require annual bulb propagation in horticultural production. This necessity can lead to higher production costs and limit their use in landscaping. The LA hybrid lily 'Aladdin' has shown strong self-reproduction capabilities in optimal cultivation environments, producing numerous high-quality underground stem bulblets.

Identification and functional analysis of terpene synthases revealing the secrets of aroma formation in Chrysanthemum aromaticum.

C. aromaticum is widely cultivated for its aromatic, medicinal, and tea-applicable properties, earning the nickname 'lavender in composite'. Terpenoids are the major compounds of C.

[Population structure and fruiting ability of ].

We analyzed age structure and dynamics, spatial distribution patterns, and reproductive capabilities of four populations in Xinjiang, to evaluate the survival status of the species and explore the reasons behind its endangerment. The results showed that the populations had fewer individuals in the youngest (Ⅰ) and oldest (Ⅵ-Ⅷ) age classes, with a predominance of middle-aged individuals, resulting in an irregular pyramid-shaped distribution, described as "high in the middle, low on both sides". The populations were generally growing, but were susceptible to external environmental disturbances (＞0, ＞0).

Response of spontaneous plant communities to microhabitats in a riparian corridor in Beijing, China.

With the increasing urban environmental problems, spontaneous vegetation has been gradually emphasized for high ecological value, whose distribution has been reported as strongly influenced by fine-scale environmental factors. As one of the major zones for urban spontaneous vegetation distribution, urban riparian corridors are well suited for research on the response of spontaneous plants to microhabitats. Taking the Wenyu River-North Canal in Beijing as the study site, we measured six microhabitat factors, including the level of maintenance and visitor activity, canopy density, litter thickness, and distance to water and road, to investigate their effects on spontaneous plant assemblages.

Heat-induced modulation of flavonoid biosynthesis via a LhMYBC2-Mediated regulatory network in oriental hybrid lily.

Global warming significantly threatens crop production, and adversely affects plant physiology due to rising temperatures. Oriental hybrid lily, an ornamental plant of economic importance, experiences flower color changes in response to elevated temperatures. Anthocyanins belong to a subgroup of flavonoids and are the primary pigments responsible for the coloration of oriental hybrid lily petals.

Comparative metabolomics profiling reveals the unique bioactive compounds and astringent taste formation of rosehips.

Rosehips are a prominent source of numerous bioactive compounds. However, despite their extensive potential, the metabolic profiles among different rosehip species have not been fully elucidated. In this study, 523 secondary metabolites from rosehips of 12 Rosa species were identified using ultra-high-performance liquid chromatography-tandem mass spectrometry.

Auxin regulates bulbil initiation by mediating sucrose metabolism in .

Lily bulbils, which serve as advantageous axillary organs for vegetative propagation, have not been extensively studied in terms of the mechanism of bulbil initiation. The functions of auxin and sucrose metabolism have been implicated in axillary organ development, but their relationship in regulating bulbil initiation remains unclear. In this study, exogenous indole-3-acetic acid (IAA) treatment increased the endogenous auxin levels at leaf axils and significantly decreased bulbil number, whereas treatment with the auxin polar transport inhibitor -1-naphthylphthalamic acid (NPA), which resulted in a low auxin concentration at leaf axils, stimulated bulbil initiation and increased bulbil number.

The Marssonina rosae effector MrSEP43 suppresses immunity in rose by targeting the orphan protein RcBROG.

Rose black spot disease, caused by Marssonina rosae (syn. Diplocarpon rosae), is one of the most widespread diseases of field-grown roses worldwide. Pathogens have been found to interfere with or stimulate plant immune responses by secreting effectors.

Microbial perspective on restoration of degraded urban soil using ornamental plants.

The urban soil where abandoned buildings are demolished is barren and structurally poor, and this degraded soil requires restoration. Ornamental plants enhance the urban environment, increase biodiversity, and affect soil physicochemical properties, microbial diversity; however, their effects remain unclear. Thus, in this study, a mixed-planting meadow consisting of 14 perennial ornamental flower species, including Iris tectorum, Iris lacteal, and Patrinia scabiosaefolia, etc.