Antiproliferative and Pro-apoptotic Activities of vent. Leaves on the Human Breast Adenocarcinoma Cell Line (MCF-7).

Background: Breast cancer is the most common cancer among women worldwide, impacting not only the patients but also their families and communities. vent. is a plant endemic to Mexico, traditionally used in Zapotec medicine for the treatment of cancer.

Evidence for Peroxisomal Redundancy among the Glucose-6-phosphate Dehydrogenase Isoforms of Arabidopsis thaliana.

The oxidative pentose phosphate pathway (OPPP) plays an important role for the generation of reducing power in all eukaryotes. In plant cells the OPPP operates in several cellular compartments, but as full cycle only in the plastid stroma where it is essential. As suggested by our recent results, OPPP reactions are also mandatory inside peroxisomes, at least during fertilisation.

Trees First Inhibit Then Promote Litter Decomposition in the Subarctic.

Trees affect organic matter decomposition through allocation of recently fixed carbon belowground, but the magnitude and direction of this effect may depend on substrate type and decomposition stage. Here, we followed mass loss, chemical composition and fungal colonisation of leaf and root litters incubated in mountain birch forests over 4 years, in plots where belowground carbon allocation was severed by tree girdling or in control plots. Initially, girdling stimulated leaf and root litter mass loss by 12% and 22%, respectively, suggesting competitive release of saprotrophic decomposition when tree-mediated competition by ectomycorrhizal fungi was eliminated (Gadgil effect).

Weaker Plant-Frugivore Trait Matching Towards the Tropics and on Islands.

Biotic interactions play an important role in species diversification and maintenance and, thus, are regarded as the architecture of biodiversity. Since Darwin and Wallace, biologists have debated whether biotic interactions are stronger towards the tropics and on continents, when compared to temperate regions and islands. Here, based on 354 avian frugivory networks accounting for 22,199 interactions between 1247 bird species and 2126 plant species, we quantified trait matching strength, which reflects interaction strength and specificity, across gradients of latitude and insularity globally.

Species-habitat networks reveal conservation implications that other community analyses do not detect.

Grassland restoration is an important conservation intervention supporting declining insect pollinators in threatened calcareous grassland landscapes. While the success of restoration is often quantified using simple measures of diversity or similarity to target communities, these measures do not capture all fundamental aspects of community reconstruction. Here, we develop species-habitat networks that aim to define habitat-level foraging dependencies of pollinators across restored grassland landscapes and compare their value to these more conventional measures of community restoration.

Monitoring CO as a plant signaling molecule under heavy metal stress using carbon nanodots.

Carbon monoxide (CO) is widely recognized as a significant environmental pollutant and is associated with numerous instances of accidental poisoning in humans. However, it also serves a pivotal role as a signaling molecule in plants, exhibiting functions analogous to those of other gaseous signaling molecules, including nitric oxide (NO) and hydrogen sulfide (HS). In plant physiology, CO is synthesized as an integral component of the defense mechanism against oxidative damage, particularly under abiotic stress conditions such as drought, salinity, and exposure to heavy metals.

A combined recombinase polymerase amplification CRISPR/Cas12a assay for detection of Fusarium oxysporum f. sp. cubense tropical race 4.

The soilborne pathogen Fusarium oxysporum f. sp. cubense tropical race 4 (Foc TR4) is currently devastating banana production worldwide.

β-Aminobutyric acid activates SA-signalling systemic acquired resistance in peach fruit by suppressing the circadian clock associated protein1.

Circadian clock regulates plant development and physiology by anticipating daily environmental changes. Here we studied the core clock protein involved in β-aminobutyric acid (BABA)-inducible SAR resistance to Rhizopus stolonifer in peach fruit. BABA elicitation barely primed the accumulation of jasmonate or ethylene, whose regulation was associated with morning-loop gene expression.

L-histidine makes Ni 'visible' for plant signalling systems: Shading the light on Ni-induced Ca and redox signalling in plants.

Nickel is both an important nutrient and an ecotoxicant for plants. Organic ligands, such as L-histidine (His), play a key role in Ni detoxification. Here, we show that His (added together with 0.

A wheat phytohormone atlas spanning major tissues across the entire life cycle provides novel insights into cytokinin and jasmonic acid interplay.

Although numerous studies have focused on the specific organs or tissues at different development stages or under various abiotic and biotic stress, our understanding of the distribution and relative abundance of phytohormones throughout the entire life cycle of plant organs and tissues remains insufficient. Here, we present a phytohormone atlas resource covering the quantitative analysis of eight major classes of phytohormones, comprising a total of 40 hormone-related compounds, throughout the complete life cycle of wheat. In combination with transcriptome analysis, we established a Wheat Phytohormone Metabolic Regulatory Network (WPMRN).

Maize2035: A decadal vision for intelligent maize breeding.

Maize, a cornerstone of global food security, has undergone remarkable transformations through breeding, yet it faces mounting challenges in a changing world. In this review, we trace the historical successes of maize breeding which laid the foundation for present opportunities. We examine both the specific and shared breeding goals related to diverse geographies and end-use demands.

Anti-inflammatory and antioxidant properties of Camellia sinensis L. extract as a potential therapeutic for atopic dermatitis through NF-κB pathway inhibition.

Atopic dermatitis (AD) is a chronic inflammatory skin disease characterized by immune dysregulation and excessive cytokine production. This study aimed to explore the potential of Camellia sinensis L. water extract (CSE) as a treatment for AD by the impact of CSE on inflammatory responses in keratinocytes, particularly concerning the production of inflammatory cytokines and the modulation of signaling pathways relevant to AD pathogenesis.

Several Seiridium species (Sporocadaceae: Xylariales) cause cypress canker in South Africa.

Cypress canker is an important fungal disease caused by at least seven different Seiridium species. The disease has been known on Cupressaceae trees in South Africa since the 1980's, but its relevance was recently accentuated with an outbreak on native Widdringtonia nodiflora trees in the Western Cape. The causal agent, S.

Secondary metabolites and extracellular proteases contribute to the antagonistic action of indigenous Trichoderma strains against Botrytis cinerea.

The aim of this work is to evaluate different molecular strategies deployed by indigenous isolates of Trichoderma in their interaction with the phytopathogen Botrytis cinerea. In vitro antagonism assays, determination of volatile and diffusible compounds, and the relative expression of the prb1 gene, which codes for an extracellular protease, before and during the stage of direct contact between the two fungi, were carried out; the characterization of this protease was also performed. All 17 Trichoderma strains tested showed high levels of inhibition against B.

Polarized pectin accumulation regulates differential hypocotyl elongation at the dark-to-light transition.

As one of the most influential environmental factors, light fundamentally shapes plant physiology and growth traits. The hypocotyl is critical for the morphological establishment of the seedling, and its length displays remarkable plasticity upon perception of changes in the light conditions. Although remodeling of the primary cell walls is well-documented to play an important role in hypocotyl growth, how the hypocotyl elongation rate is swiftly repressed at the dark-to-light transition remains elusive.

Physiological and multi-omics analysis revealed the mechanism of arbuscular mycorrhizal fungi to cadmium toxicity in green onion.

Cadmium (Cd) is a highly toxic agricultural pollutant that inhibits the growth and development of plants. Arbuscular mycorrhizal fungi (AMF) can enhance plant tolerance to Cd, but the regulatory mechanisms in Allium fistulosum (green onion) are unclear. This study used a Cd treatment concentration of 1.

Dietary phytoestrogens recalibrate socioemotional behavior in C57Bl/6J mice in a sex- and timing-dependent manner.

Estrogens are potent regulators of socioemotional behavior across species. Ubiquitous in human and animal diets, plant-derived phytoestrogens (PE) bind estrogen receptors. While prior work has examined the impact of PE exposure on socioemotional behavior, findings are inconsistent across studies.

Elevated temperature has more pronounced effect on anthesis tomato plant than cadmium stress and reduced nitrogen supply.

Plants are often exposed to combined stress, e.g. heat and cadmium (Cd) stress under natural conditions.

Within-host evolution of a transcriptional regulator contributes to the establishment of chronic Pseudomonas aeruginosa infection.

As an opportunistic pathogen, Pseudomonas aeruginosa can cause both acute and chronic infections that are notoriously difficult to treat. However, the mechanism underlying acute or chronic P. aeruginosa infection remains unclear.

Two TAL Effectors of Xanthomonas citri pv. malvacearum Induce Water Soaking by Activating GhSWEET14 Genes in Cotton.

Bacterial blight of cotton (BBC) caused by Xanthomonas citri pv. malvacearum (Xcm) is an important and destructive disease affecting cotton plants. Transcription activator-like effectors (TALEs) released by the pathogen regulate cotton resistance to the susceptibility.

Leaf Photosynthetic and Respiratory Thermal Acclimation in Terrestrial Plants in Response to Warming: A Global Synthesis.

Leaf photosynthesis and respiration are two of the largest carbon fluxes between the atmosphere and biosphere. Although experiments examining the warming effects on photosynthetic and respiratory thermal acclimation have been widely conducted, the sensitivity of various ecosystem and vegetation types to warming remains uncertain. Here we conducted a meta-analysis on experimental observations of thermal acclimation worldwide.

Influence of drought stress on phosphorus dynamics and maize growth in tropical ecosystems.

Drought has a significant impact on ecosystem functions, especially on the biogeochemical cycling of phosphorus (P), which is a crucial nutrient for plant growth and productivity. Despite its importance, the effects of different drought scenarios on soil P cycling and availability remain poorly understood in previous studies. This study simulated drought conditions in tropical soils using maize as a test crop under varying field capacity (FC) levels (100%, 80%, 60%, 40%, and 20%) over a 60-day pot experiment.

Transcriptome, miRNA, and degradome sequencing reveal the leaf stripe (Pyrenophora graminea) resistance genes in Tibetan hulless barley.

Barley leaf stripe, a disease mainly caused by Pyrenophora graminea (P. graminea) infection, severely affects barley yield and quality and is one of the most widespread diseases in barley production. However, little is known about the underlying molecular mechanisms of leaf stripe resistance.

Exogenous diethyl aminoethyl hexanoate alleviates the damage caused by low-temperature stress in Phaseolus vulgaris L. seedlings through photosynthetic and antioxidant systems.

Background: Phaseolus vulgaris is a warm-season crop sensitive to low temperatures, which can adversely affect its growth, yield, and market value. Exogenous growth regulators, such as diethyl aminoethyl hexanoate (DA-6), have shown potential in alleviating stress caused by adverse environmental conditions. However, the effects that DA-6 has on P.