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Всеобъемлющий анализ two Китайские геномы огурцов и мутантов как ресурсы для точного размножения.

Cumuis sativus L., известный как огурец, является важным овощным растениеводством во всем мире, крупнейшим производителем которого является Китай, в особенности северный и южно-китайский типы. В то время как обширные геномные исследования были сосредоточены на Северном Китае, особенно на китайском Лонге. 9930, исследования по Южно-Китайскому типу остаются ограниченными. В этом исследовании мы собрали высококачественные геномы two широко культивируемые и репрезентативные родные разновидности: S36 (тип Северной Китая) и H19 (тип Южной Китая) и провели анализ мутагенезов. Сравнительный анализ ген

Совпадение в аннотации оригинала
Cucumis sativus L., commonly known as cucumber, is an important vegetable crop worldwide, with China as the largest producer, particularly of the North and South China types. While extensive genomic research has focused on the North China type, especially the Chinese Long 9930, studies on the South China type remain limited. In this study, we assembled high-…

Hydrolysis of riboflavins in root exudates under iron deficiency and alkaline stress.

Riboflavins are secreted under iron deficiency as a part of the iron acquisition Strategy I, mainly when the external pH is acidic. In plants growing under Fe-deficiency and alkaline conditions, riboflavins have been reported to accumulate inside the roots, with very low or negligible secretion. However, the fact that riboflavins may undergo hydrolysis under alkaline conditions has been so far disregarded. In this paper, we report the presence of riboflavin derivatives and products of their alkaline hydrolysis (lumichrome, lumiflavin and carboxymethylflavin) in nutrient solutions of Cucumis sa…

Concurrent Temperature and Light Intensity Fluctuations Promote Stomatal Opening and Non-Steady State Photosynthesis.

In nature, fluctuations in light intensity (FL) are tightly coupled to rapid changes in leaf temperature (Tleaf), yet the short-term physiological effects of these concurrent drivers remain largely unresolved. Here, we combined rapid infrared induced Tleaf fluctuations with controlled step changes in light intensity for leaf gas exchange measurements to disentangle how each factor, and their interaction, affects stomatal conductance (gs) and net CO2 assimilation (A) in cucumber plants grown under constant light or FL. Modest but rapid increases in Tleaf (~3°C) alone triggered a pronounced wron

Discovery of Novel Coumarin Derivatives as Potential Eco-Friendly Antivirals against Cucumber Mosaic Virus.

Coumarins are widely distributed natural products with diverse biological activities. In this study, 54 novel coumarin derivatives bearing benzyl chloride and dithioacetal moieties were designed, synthesized, and evaluated for antiviral activity against cucumber mosaic virus (CMV). Several compounds exhibited superior efficacy compared to the commercial agent ningnanmycin. Notably, compound E27 showed the strongest in vivo protective activity, outperforming both ningnanmycin and chitosan oligosaccharide (COS). Mechanistic studies revealed that E27 enhanced defense-related enzyme activities, in

Epoxy tetrahydrophthalimides as potential bioactive agents: synthesis and computational study.

BACKGROUND: Due to the growing resistance of weeds to known herbicides, the search for new bioactive substances has been increasing in recen … s had their phytotoxicity evaluated using germination tests in Petri dishes against Lactuca sativa, Cucumis sativus, Sorghum bicolor and Bidens pilosa. At concentrations of 500 and 300 μm substance 16a presented inhibition of 70% and 66%, respectively, of the aerial parts of sorghum plants, which is higher than that observed for the commercial herbicide S …

Farm-to-consumer quantitative microbial risk assessment model for Listeria monocytogenes on fresh-cut cantaloupe.

Cantaloupe contamination with the foodborne pathogen Listeria monocytogenes (LM) may occur along the supply chain. We developed a quantitative microbial risk assessment (QMRA) model for LM on cantaloupe along the fresh-cut supply chain and evaluated potential risk reduction strategies. The developed model starts at harvest and includes conditions during transportation from field to intermediate facility (packinghouse or cooling facility), handling at the intermediate facility, transportation to the fresh-cut facility, storage preprocessing at the fresh-cut facility, processing and handling at

Mitigation of salinity stress in cucumber seedlings by exogenous hydrogen sulfide.

This research hypothesized that tolerance of cucumber seedlings to salinity stress could be increased by hydrogen sulfide (H2S) treatments. In pot experiments, the cucumber seedlings were exposed to three levels of salt stress (0, 50 and 100 mM NaCl), and NaHS as H2S donor was foliar applied to the cucumber seedlings at five different doses (0, 25, 50, 75 and 100 µM). The effects of the treatments on cucumber seedlings were tested with plant growth properties as well as physiological and biochemical analyses. As the salinity level increased, plant growth properties and chlorophyll reading valu

Control of the bacterial soft rot pathogen, Pectobacterium carotovorum by Bacillus velezensis CE 100 in cucumber.

Pectobacterium carotovorum is a problematic bacterial pathogen causing soft rot in different vegetable crops, resulting in yield losses during pre- and post-harvest periods. In this study, Bacillus velezensis CE 100 showed antibacterial activity against P. carotovorum. Co-inoculation experiment indicated that B. velezensis CE 100 reduced the proliferation rate of P. carotovorum at the early incubation period and that a long incubation time induced a loss of viability of the bacterial pathogen. Agar well diffusion assay revealed that the culture filtrate of strain CE 100 affected the growth of

Dissipation and dietary risk assessment of tristyrylphenol ethoxylate homologues in cucumber after field application.

The potential for tristyrylphenol ethoxylates (TSPEOs) residues to contaminate crops or be released into the environment is of increasing concern, as they are toxic to living organisms. This study determined the dissipation of TSPEO homologues in cucumber under field conditions. TSPEOn (n = 6-29) dissipated more rapidly in cucumber than in soil samples, with half-lives of 1.80-4.30 d and 3.73-6.52 d, respectively. Short-chain TSPEOn (n = 6-11) persisted for longer than other oligomers in soil. Concentrations of the final residues (∑TSPEOs) in cucumber and soil were 24.3-1349 μg/kg and 47.3-133

Investigation on the Antifungal Ingredients of Saccharothrix Yanglingensis Hhs.015, an Antagonistic Endophytic Actinomycete Isolated from Cucumber Plant.

Abstract: Apple tree canker infected by Valsa mali var. mali is a serious and widely distributed disease in China. Saccharothrix yanglingensis Hhs.015 is an endophytic actinomycete isolated from cucumber roots, and it has been proven that this strain is a promising biocontrol agent on apple tree canker in previous studies. The aim of this study was to elucidate the active ingredients in its metabolites. Two pentaene macrolides, WH01 and WH02, were isolated from strain Hhs.015, and their structures were elucidated based on the extensive spectroscopic analysis. WH01 and WH02 were identified as f

Efficacy evaluation of fungus Syncephalastrum racemosum and nematicide avermectin against the root-knot nematode Meloidogyne incognita on cucumber.

The root-knot nematode (RKN) is one of the most damaging agricultural pests.Effective biological control is need for controlling this destructive pathogen in organic farming system. During October 2010 to 2011, the nematicidal effects of the Syncephalastrum racemosum fungus and the nematicide, avermectin, alone or combined were tested against the RKN (Meloidogyne incognita) on cucumber under pot and field condition in China. Under pot conditions, the application of S. racemosum alone or combined with avermectin significantly increased the plant vigor index by 31.4% and 10.9%, respectively comp

Assessing abundance and distribution of an invasive thrips Frankliniella schultzei (Thysanoptera: Thripidae) in south Florida.

Within-plant and within-field distribution of larvae and adults of an invasive thrips species, Frankliniella schultzei (Trybom) on cucumber, Cucumis sativus L. was studied in 2008 and 2009 in Homestead, Florida. The majority of thrips were found inhabiting flowers of cucumber plants and little or none was found on the other parts of the plant. Thrips were aggregated in the field, as indicated by the two regression models, Taylor's power and Iwao's patchiness regression. Iwao's patchiness regression provided a better fit than Taylor's power law. The distribution was clumped during the initial s…

CmGT9 represses salt tolerance in grafted melon via CmRAP2.6L coordinating ion and redox homeostasis.

Salt stress severely restricts melon (Cucumis melo L.) production, and grafting is widely used to improve salt tolerance; however, the underlying regulatory mechanisms remain unclear. In this study, we identified the trihelix transcription factor CmGT9 as a key negative regulator of salt tolerance in grafted melon using contrasting rootstock combinations. Root-specific manipulation of CmGT9 demonstrated that it suppressed salt tolerance by impairing Na⁺/K⁺ homeostasis. Integrated RNA-seq and DAP-seq analyses identified ion transporter genes CmNHX6, CmKUP11, and CmKUP3, and the ERF transcriptio…

The CmMAPK6-CmbHLH100 module regulates melon senescence by modulating iron homeostasis.

Leaf senescence is a finely regulated cellular process orchestrated by developmental programs and environmental factors. While mitogen-activated protein kinase (MAPK) cascades have been documented to participate in the regulation of leaf senescence, their functional involvement in this process in melon (Cucumis melo L.) remains largely uncharacterized. Here, we identified that CmMAPK6 acts as a positive regulator of leaf senescence in melon. Overexpression of CmMAPK6 led to a typical premature senescence phenotype, including leaf yellowing, decreased chlorophyll content, and chloroplast disint…

CsZAT10-Mediated Nitric Oxide Signalling Pathway Is Involved in Melatonin-Induced Chilling Tolerance in Cucumber.

Chilling is an important abiotic stressor that significantly affects cucumber production. Melatonin (MT) modulates chilling responses by int … ve oxygen species (ROS) accumulation. Moreover, we identified a transcription factor zinc finger of Cucumis sativus 10 (CsZAT10), and found CsZAT10 could directly bind to the promoter of CsGSNOR. Furthermore, we found CsZAT10 overexpression enhanced cucumber chilling resistance by directly activating CsGSNOR expression to mediate NO homoeostasis, whereas …

A DUF21 domain-containing protein regulates plant dwarfing in watermelon.

Dwarf or semidwarf plant structures are well suited for intensive farming, maximizing yield, and minimizing labor costs. Watermelon (Citrull … ly, we employed CRISPR/Cas9 technology to precisely modify the homologous gene CsDUF21 in cucumber (Cucumis sativus) and performed protein interaction validation between CsDUF21 and CsDWF1, thereby demonstrating that the CsDUF21 gene also exhibits analogous functionality in plant dwarfing. These findings demonstrate that ClDUF21 governs plant dwarfism by …

Allergenic Ingredients in Facial Wet Wipes.

BACKGROUND: Allergic contact dermatitis commonly occurs on the face. Facial cleansing wipes may be an underrecognized source of allergens. … tanical origin included Aloe barbadensis (41.0%), chamomile extracts (27.0%), tea extracts (21.3%), Cucumis sativus (20.2%), and Hamamelis virginiana (10.7%). CONCLUSIONS: Many potential allergens are present in facial wet wipes, including fragrances, preservatives, botanicals, glucosides, and propylene glycol.

Natural variants of CsSHN1 orchestrate a temporal regulatory cascade driving fruit skin netting in cucumber.

Fruit skin netting (russeting, Rs) forms when epidermal microcracks are sealed by a suberized periderm, reducing marketability. We previously identified the Rs locus (CsSHN1), which encodes an AP2/ERF transcription factor, as a major determinant of cucumber skin netting, but how fruit growth is temporally coupled to periderm formation remains unclear. Here, we integrated population genomics, time-series multiomics, DNA affinity purification sequencing (DAP-seq), and transgenic assays to decode the CsSHN1-mediated regulatory network. Six functionally relevant CsSHN1 variants were identified acr

Fusarium solani from decomposing cucumber root litter degrades autotoxic phenolics and promotes plant growth.

AIMS: Autotoxic phenolic compounds are released from decomposing plant litter and can accumulate in the soil. This study investigates the dynamics of the fungal community during root litter decomposition and the potential of fungal communities in root litter for degrading phenolic compounds. METHODS AND RESULTS: The root litter decomposition experiment showed fungal communities in cucumber root litter differed between 15 and 60 days after decomposition. In particular, Fusarium sp. was enriched in root litter. Then, we isolated a strain of interest, coded F60, from the root litter and identifi