Abstract：
:Many planktonic organisms produce 'resting' stages when the environmental conditions deteriorate. Like seeds, resting stages can survive unfavourable conditions. The crustacean Daphnia normally reproduces by means of parthenogenetically produced normal, not resting, eggs-but occasionally switches to bisexual reproduction, which results in two resting eggs encased in a robust structure carried on the back of the female. This 'ephippium' is shed with the next moult, and can survive dormant for many years. The induction of resting-egg production requires multiple environmental stimuli, one of them being photoperiod. The switch from production of parthenogenetic eggs to resting eggs in Daphnia has recently been shown to be influenced by a maternal food effect. Here we present evidence that female Daphnia transmit information not only about food but also on photoperiod to their offspring, and influence the production of resting eggs in the next generation. The combined maternal effects can be relevant for the correct timing of resting-egg production-for example, in discriminating between spring and autumn conditions.
journal_name
Naturejournal_title
Natureauthors
Alekseev V,Lampert Wdoi
10.1038/414899akeywords:
subject
Has Abstractpub_date
2001-12-20 00:00:00pages
899-901issue
6866eissn
0028-0836issn
1476-4687pii
414899ajournal_volume
414pub_type
杂志文章相关文献
NATURE文献大全abstract：:Microtubule-based ATPases of the kinesin superfamily provide the motile force for many animated features of living cells. Kinesin motors differ in their direction of movement along microtubules. Kinesin and ncd, a kinesin-related motor involved in formation and maintenance of mitotic and meiotic spindles, move in oppo...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/380555a0
更新日期：1996-04-11 00:00:00
abstract：: ...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/d41586-018-07781-4
更新日期：2018-12-01 00:00:00
abstract：:Microsomes prepared from rabbit or pig aortas transformed endoperoxides (PGG2 or PGH2) to an unstable substance (PGX) that inhibited human platelet aggregation. PGX was 30 times more potent in this respect than prostaglandin E1. PGX contracted some gastrointestinal smooth muscle and relaxed certain isolated blood vess...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/263663a0
更新日期：1976-10-21 00:00:00
abstract：:The uranyl ion (UO22+; U(VI) oxidation state) is the most common form of uranium found in terrestrial and aquatic environments and is a central component in nuclear fuel processing and waste remediation efforts. Uranyl capture from either seawater or nuclear waste has been well studied and typically relies on extremel...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/s41586-019-1926-4
更新日期：2020-01-01 00:00:00
abstract：:Haematopoiesis is a developmental cascade that generates all blood cell lineages in health and disease. This process relies on quiescent haematopoietic stem cells capable of differentiating, self renewing and expanding upon physiological demand. However, the mechanisms that regulate haematopoietic stem cell homeostasi...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/nature13498
更新日期：2014-10-02 00:00:00
abstract：:Three interleukin-1 inhibitors have been purified to homogeneity from medium conditioned by human monocytes. Partial sequence analysis and digestion with N-glycanase indicate that these are glycosylation forms of a single protein. The protein binds to the interleukin-1 receptor but has no interleukin-1-like activity, ...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/343336a0
更新日期：1990-01-25 00:00:00
abstract：:The factors shaping cometary nuclei are still largely unknown, but could be the result of concurrent effects of evolutionary and primordial processes. The peculiar bilobed shape of comet 67P/Churyumov-Gerasimenko may be the result of the fusion of two objects that were once separate or the result of a localized excava...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/nature15511
更新日期：2015-10-15 00:00:00
abstract：:Neurons in the developing rodent cortex are generated from radial glial cells that function as neural stem cells. These epithelial cells line the cerebral ventricles and generate intermediate progenitor cells that migrate into the subventricular zone (SVZ) and proliferate to increase neuronal number. The developing hu...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/nature08845
更新日期：2010-03-25 00:00:00
abstract：:Diatoms dominate the biomass of phytoplankton in nutrient-rich conditions and form the basis of some of the world's most productive marine food webs. The diatom nuclear genome contains genes with bacterial and plastid origins as well as genes of the secondary endosymbiotic host (the exosymbiont), yet little is known a...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/nature10074
更新日期：2011-05-12 00:00:00
abstract：:The resemblance of the orbitally filtered isotope signal from the past 340 kyr in Antarctic ice cores to Northern Hemisphere summer insolation intensity has been used to suggest that the northern hemisphere may drive orbital-scale global climate changes. A recent Letter by Laepple et al. suggests that, contrary to thi...
journal_title：Nature
pub_type： 评论,杂志文章
doi：10.1038/nature10613
更新日期：2011-11-09 00:00:00
abstract：:It is generally accepted that the oscillatory beating characteristic of sperm flagella is the result of an ATP-induced sliding between the doublet microtubules of the flagellar axoneme, with these longitudinal forces being converted into a lateral bending moment by resistive components of the structure that limit the ...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/325351a0
更新日期：1987-01-22 00:00:00
abstract：:The hippocampus is an important part of the limbic system in the human brain that has essential roles in spatial navigation and the consolidation of information from short-term memory to long-term memory1,2. Here we use single-cell RNA sequencing and assay for transposase-accessible chromatin using sequencing (ATAC-se...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/s41586-019-1917-5
更新日期：2020-01-01 00:00:00
abstract：:Activity in the motor cortex predicts movements, seconds before they are initiated. This preparatory activity has been observed across cortical layers, including in descending pyramidal tract neurons in layer 5. A key question is how preparatory activity is maintained without causing movement, and is ultimately conver...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/s41586-018-0642-9
更新日期：2018-11-01 00:00:00
abstract：:The enzyme isopenicillin N synthetase (IPS) catalyses the oxidative condensation of delta-(L-alpha-aminoadipyl)-L-cysteinyl-D-valine (LLD-ACV) to isopenicillin N, which is a central reaction in the pathway to clinically important penicillins and cephalosporins. Here we report the cloning, characterization and expressi...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/318191a0
更新日期：1985-11-14 00:00:00
abstract：:Highly efficient neutron detectors are critical in many sectors, including national security1,2, medicine3, crystallography4 and astronomy5. The main neutron detection technologies currently used involve 3He-gas-filled proportional counters6 and light scintillators7 for thermalized neutrons. Semiconductors could provi...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/s41586-019-1886-8
更新日期：2020-01-01 00:00:00
abstract：:Cryptochromes are blue/ultraviolet-A light receptors that mediate various light responses in plants and animals. But the initial photochemical reaction of cryptochrome is still unclear. For example, although most photoreceptors are known to undergo light-dependent protein modification such as phosphorylation, no blue-...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/nature00815
更新日期：2002-06-13 00:00:00
abstract：:Magnetic interactions and magnetic impurities are destructive to superconductivity in conventional superconductors. By contrast, in some unconventional macroscopic quantum systems (such as superfluid 3He and superconducting UGe2), the superconductivity (or superfluidity) is actually mediated by magnetic interactions. ...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/35082019
更新日期：2001-06-21 00:00:00
abstract：:Excitation-contraction coupling in skeletal muscle involves a voltage sensor in the plasma membrane which, in response to depolarization, causes an intracellular calcium-release channel to open. The skeletal isoform of the ryanodine receptor (RyR-1) functions as the Ca2+-release channel and the dihydropyridine recepto...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/380072a0
更新日期：1996-03-07 00:00:00
abstract：:Quantum criticality is associated with a system composed of a nearly infinite number of interacting quantum degrees of freedom at zero temperature, and it implies that the system looks on average the same regardless of the time- and length scale on which it is observed. Electrons on the atomic scale do not exhibit suc...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/nature01978
更新日期：2003-09-18 00:00:00
abstract：:It is widely accepted that obesity and associated metabolic diseases, including type 2 diabetes, are intimately linked to diet. However, the gut microbiota has also become a focus for research at the intersection of diet and metabolic health. Mechanisms that link the gut microbiota with obesity are coming to light thr...
journal_title：Nature
pub_type： 杂志文章,评审
doi：10.1038/nature18846
更新日期：2016-07-07 00:00:00
abstract：:The double helix of DNA epitomizes this molecule's ability to self-assemble in aqueous solutions into a complex chiral structure using hydrogen bonding and hydrophobic interactions. Non-covalently interacting molecules in organic solvents are used to design systems that similarly form controlled architectures. Periphe...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/35025027
更新日期：2000-09-14 00:00:00
abstract：:The first zygotic genes to be expressed during early Drosophila development are the gap genes. Their role is to read and interpret coarse positional information deposited in the egg by the mother and to refine it by cross-regulatory interactions and by controlling a class of pair-rule genes. Little is known about the ...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/341335a0
更新日期：1989-09-28 00:00:00
abstract：:Dengue disease is caused by four different flavivirus serotypes, which infect 390 million people yearly with 25% symptomatic cases and for which no licensed vaccine is available. Recent phase III vaccine trials showed partial protection, and in particular no protection for dengue virus serotype 2 (refs 3, 4). Structur...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/nature14130
更新日期：2015-04-02 00:00:00
abstract：:Light absorption by the visual pigment rhodopsin triggers, through G-protein coupling, a cascade of events in the outer segment of the rod cell of the vertebrate retina that results in membrane hyperpolarization and nerve excitation. Rhodopsin, which contains 348 amino acids, has seven helices that cross the disk memb...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/362770a0
更新日期：1993-04-22 00:00:00
abstract：:When present in single-stranded DNA, palindromic or quasi-palindromic sequences have the potential to form complex secondary structures, including hairpins, which may facilitate interstrand misalignment of direct repeats and be responsible for diverse types of replication-based mutations, including deletions, addition...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/352544a0
更新日期：1991-08-08 00:00:00
abstract：:Humans have engaged in endurance running for millions of years, but the modern running shoe was not invented until the 1970s. For most of human evolutionary history, runners were either barefoot or wore minimal footwear such as sandals or moccasins with smaller heels and little cushioning relative to modern running sh...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/nature08723
更新日期：2010-01-28 00:00:00
abstract：:Chromatin is traditionally viewed as a nuclear entity that regulates gene expression and silencing. However, we recently discovered the presence of cytoplasmic chromatin fragments that pinch off from intact nuclei of primary cells during senescence, a form of terminal cell-cycle arrest associated with pro-inflammatory...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/nature24050
更新日期：2017-10-19 00:00:00
abstract：:Haemophilia B, or Christmas disease, is an inherited X-chromosome-linked bleeding disorder caused by a defect in clotting factor IX and occurs in about 1 in 30,000 males in the United Kingdom. Injection of factor IX concentrate obtained from blood donors allows most patients to be successfully managed. However, becaus...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/315683a0
更新日期：1985-06-20 00:00:00
abstract：:During development, sympathetic neurons extend axons along a myriad of distinct trajectories, often consisting of arteries, to innervate one of a large variety of distinct final target tissues. Whether or not subsets of neurons within complex sympathetic ganglia are predetermined to innervate select end-organs is unkn...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/nature06859
更新日期：2008-04-10 00:00:00
abstract：:The imaginal discs of Drosophila, which give rise to the adult appendages, are patterned during a period of intense cell proliferation. The specification of differing regions occurs in some cases by subdividing the disc epithelium into lineage compartments. However, in most cases precise boundaries are formed between ...
journal_title：Nature
pub_type： 杂志文章
doi：10.1038/384072a0
更新日期：1996-11-07 00:00:00
