Exposure to Artificial Light at Night and the Consequences for Flora, Fauna, and Ecosystems

Frontiers in Neuroscience, Год журнала: 2020, Номер 14

Опубликована: Ноя. 16, 2020

The present review draws together wide-ranging studies performed over the last decades that catalogue effects of artificial-light-at-night (ALAN) upon living species and their environment. We provide an overview tremendous variety light-detection strategies which have evolved in organisms - unicellular, plants animals, covering chloroplasts (plants), plethora ocular extra-ocular organs (animals). describe visual pigments permit photo-detection, paying attention to spectral characteristics, extend from ultraviolet into infrared. discuss how use light information a way crucial for development, growth survival: phototropism, phototaxis, photoperiodism, synchronization circadian clocks. These aspects are treated depth, as perturbation underlies much disruptive ALAN. goes detail on networks organisms, since these fundamental features critical importance regulating interface between environment body. Especially, hormonal synthesis secretion often under circannual control, hence clock will lead imbalance. addresses ubiquitous introduction light-emitting diode technology may exacerbate, or some cases reduce, generalized ever-increasing pollution. Numerous examples given widespread exposure ALAN is perturbing many plant animal behaviour foraging, orientation, migration, seasonal reproduction, colonization more. examine potential problems at level individual populations debate consequences ecosystems. stress, through few examples, synergistic harmful resulting impacts combined with other anthropogenic pressures, impact neuroendocrine loops vertebrates. article concludes by debating changes could be mitigated more reasonable available example restricting illumination essential areas hours, directing lighting avoid wasteful radiation selecting emissions, reduce end discussing society should take account potentially major has natural world repercussions ongoing human health welfare.

Язык: Английский

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Role of Circadian Rhythms in Major Plant Metabolic and Signaling Pathways

Frontiers in Plant Science, Год журнала: 2022, Номер 13

Опубликована: Апрель 6, 2022

Plants require an endogenous regulatory network and mechanism to cope with diurnal environmental changes compensate for their sessile nature. use the circadian clock anticipate changes. Circadian rhythm predicts a 24-h cycle 16 h of light 8 darkness in response abiotic biotic factors as well appropriate temperature. For plant’s fitness, proper growth, development, these rhythms synchronize photoperiodic Input pathway, central oscillator, output pathway are three components that make up clock. There also transcriptional translational feedback loops (TTFLs) clock, which dependent on results gene expression. Several physiological processes, such stress acclimatization, hormone signaling, morphogenesis, carbon metabolism, defense response, currently being investigated interactions using phenotypic, genomic, metabolic studies. This review examines role regulation plant pathways, photosynthesis developmental degenerative flowering senescence. Furthermore, we summarized signaling pathways related rhythms, pathways.

Язык: Английский

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Towards the Idea of Molecular Brains

International Journal of Molecular Sciences, Год журнала: 2021, Номер 22(21), С. 11868 - 11868

Опубликована: Ноя. 1, 2021

How can single cells without nervous systems perform complex behaviours such as habituation, associative learning and decision making, which are considered the hallmark of animals with a brain? Are there molecular that underlie cognitive properties equivalent to those This review follows development idea brains from Darwin’s “root brain hypothesis”, through bacterial chemotaxis, recent discovery neuron-like r-protein networks in ribosome. By combining structural biology view Bayesian approach, this explores evolutionary labyrinth information processing across scales. Ribosomal protein open window into what were probably earliest signalling emerge before radiation three kingdoms. While ribosomal characterised by long-lasting interactions between their nodes, cell essentially based on transient interactions. As corollary, while signals propagated persistent may be ephemeral, whose constrain diffusing cytoplasm durable time, post-translational modifications proteins or second messenger synthesis. The duration nature signals, turn, implies different mechanisms for integration multiple making. Evolution then reinvented metazoans. simple display architectural functional analogies comparison could suggest scale invariance processing. At level, significant complexification eukaryotic is associated burst acquisition new conserved aromatic amino acids. Knowing residues play critical role allosteric receptors channels, observation suggests general π charged acids signal We think these findings provide basis designing future computers organic processors.

Язык: Английский

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The adaptive nature of the plant circadian clock in natural environments

PLANT PHYSIOLOGY, Год журнала: 2022, Номер 190(2), С. 968 - 980

Опубликована: Июль 27, 2022

Abstract The plant circadian clock coordinates developmental, physiological, and metabolic processes with diel changes in light temperature throughout the year. balance between persistence plasticity of response to predictable unpredictable environmental may be key clock’s adaptive nature across temporal spatial scales. Studies under controlled conditions have uncovered critical signaling pathways involved perception by clock; however, they don’t account for natural lag behind photoperiod. environments provide insights into advantage more complex settings. Here, we discuss role signaling, how integrates these signals a coordinated response, conferred time space environments.

Язык: Английский

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Rhythms and Clocks in Marine Organisms

Annual Review of Marine Science, Год журнала: 2022, Номер 15(1), С. 509 - 538

Опубликована: Авг. 27, 2022

The regular movements of waves and tides are obvious representations the oceans’ rhythmicity. But rhythms marine life span across ecological niches timescales, including short (in range hours) long days months) periods. These regulate physiology behavior individuals, as well their interactions with each other environment. This review highlights examples rhythmicity in animals algae that represent important groups different habitats. cover ecologically highly relevant species a growing number laboratory model systems used to disentangle key mechanistic principles. introduces fundamental concepts chronobiology, such distinction between rhythmic endogenous oscillator–driven processes. It also addresses relevance studying diverse oscillators, interconnection, for making better predictions how will respond environmental perturbations, climate change. As aims address scientists from fields biology, ecology, molecular all which have own scientific terms, we provide definitions terms throughout article.

Язык: Английский

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Circadian regulation of MGMT expression and promoter methylation underlies daily rhythms in TMZ sensitivity in glioblastoma

Journal of Neuro-Oncology, Год журнала: 2024, Номер 166(3), С. 419 - 430

Опубликована: Янв. 26, 2024

Язык: Английский

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Orchestration of Circadian Timing by Macromolecular Protein Assemblies

Journal of Molecular Biology, Год журнала: 2020, Номер 432(12), С. 3426 - 3448

Опубликована: Янв. 14, 2020

Язык: Английский

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Roles of clock genes in the pathogenesis of Parkinson's disease

Ageing Research Reviews, Год журнала: 2021, Номер 74, С. 101554 - 101554

Опубликована: Дек. 30, 2021

Язык: Английский

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Circadian Clock Regulates Inflammation and the Development of Neurodegeneration

Frontiers in Cellular and Infection Microbiology, Год журнала: 2021, Номер 11

Опубликована: Сен. 14, 2021

The circadian clock regulates numerous key physiological processes and maintains cellular, tissue, systemic homeostasis. Disruption of machinery influences activities involved in immune response brain function. Moreover, Immune activation has been closely linked to neurodegeneration. Here, we review the molecular diurnal variation activity. We summarize control immunity both central peripheral cells, as well regulation cells that are implicated explore important role inflammation on modulates cellular metabolism, which could be a mechanism underlying control. also discuss interventions Targeting clocks potential strategy for prevention treatment neurodegenerative diseases.

Язык: Английский

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Abiotic stress through time

New Phytologist, Год журнала: 2021, Номер 231(1), С. 40 - 46

Опубликована: Март 29, 2021

Throughout plant evolution the circadian clock has expanded into a complex signaling network, coordinating physiological and metabolic processes with environment. Early land plants faced new environmental pressures that required energy-demanding stress responses. Integrating abiotic response system provides control over daily energy expenditure. Here, we describe of in limited, yet compelling, evidence for conserved regulation stress. The need to introduce tolerance current crops research wild accessions revealed extensive variation parameters across monocot eudicot species. We argue ancestral links between will benefit crop improvement efforts.

Язык: Английский

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