scholarly journals Alert! Alert! Stress‐induced systemic signals unraveled

2021 ◽  
Vol 107 (1) ◽  
pp. 5-6
Author(s):  
Leonie Verhage
Keyword(s):  
Systemic Signals

The relative importance of luminal and systemic signals in the control of intestinal iron absorption

2001 ◽  
Vol 120 (5) ◽  
pp. A678-A679
Author(s):  
G ANDERSON ◽  
S WILKINS ◽  
T MURPHY ◽  
G CLEGHORN ◽  
D FRAZER
Keyword(s):  
Iron Absorption ◽  
Relative Importance ◽  
Intestinal Iron Absorption ◽  
Systemic Signals

scholarly journals Dodder-transmitted mobile signals prime host plants for enhanced salt tolerance

2019 ◽  
Vol 71 (3) ◽  
pp. 1171-1184 ◽  
Author(s):  
Shalan Li ◽  
Jingxiong Zhang ◽  
Hui Liu ◽  
Nian Liu ◽  
Guojing Shen ◽  
...  
Keyword(s):  
Salt Stress ◽  
Host Plants ◽  
Physiological Function ◽  
The Other ◽  
Physiological Changes ◽  
Plant Signaling ◽  
Plant Interactions ◽  
Salt Treatment ◽  
Systemic Signals

Abstract The dodders (Cuscuta spp.) are a genus of shoot parasites. In nature, a dodder often simultaneously parasitizes two or more neighboring hosts. Salt stress is a common abiotic stress for plants. It is unclear whether dodder transmits physiologically relevant salt stress-induced systemic signals among its hosts and whether these systemic signals affect the hosts’ tolerance to salt stress. Here, we simultaneously parasitized two or more cucumber plants with dodder. We found that salt treatment of one host highly primed the connected host, which showed strong decreases in the extent of leaf withering and cell death in response to subsequent salt stress. Transcriptomic analysis indicated that 24 h after salt treatment of one cucumber, the transcriptome of the other dodder-connected cucumber largely resembled that of the salt-treated one, indicating that inter-plant systemic signals primed these dodder-connected cucumbers at least partly through transcriptomic reconfiguration. Furthermore, salt treatment of one of the cucumbers induced physiological changes, including altered proline contents, stomatal conductance, and photosynthetic rates, in both of the dodder-connected cucumbers. This study reveals a role of dodder in mediating salt-induced inter-plant signaling among dodder-connected hosts and highlights the physiological function of these mobile signals in plant–plant interactions under salt stress.

scholarly journals Retraction Note: Systemic signals regulate ageing and rejuvenation of blood stem cell niches

Nature ◽  
2010 ◽  
Vol 467 (7317) ◽  
pp. 872-872 ◽  
Author(s):  
Shane R. Mayack ◽  
Jennifer L. Shadrach ◽  
Francis S. Kim ◽  
Amy J. Wagers
Keyword(s):  
Stem Cell ◽  
Blood Stem Cell ◽  
Stem Cell Niches ◽  
Systemic Signals

scholarly journals mastermind regulates niche ageing independently of the Notch pathway in the Drosophila ovary

Open Biology ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 190127
Author(s):  
María Lobo-Pecellín ◽  
Miriam Marín-Menguiano ◽  
Acaimo González-Reyes
Keyword(s):  
Stem Cell ◽  
Cell Activity ◽  
Notch Pathway ◽  
Tissue Homeostasis ◽  
Germline Stem Cells ◽  
Proliferation And Differentiation ◽  
Stem Cell Activity ◽  
Stem Cell Populations ◽  
Drosophila Ovary ◽  
Systemic Signals

Proper stem cell activity in tissues ensures the correct balance between proliferation and differentiation, thus allowing tissue homeostasis and repair. The Drosophila ovary develops well-defined niches that contain on average 2–4 germline stem cells (GSCs), whose maintenance depends on systemic signals and local factors. A known player in the decline of tissue homeostasis is ageing, which correlates with the waning of resident stem cell populations. In Drosophila , ovaries from old females contain fewer GSCs than those from young flies. We isolated niche cells of aged ovaries, performed a transcriptomic analysis and identified mastermind (mam) as a factor for Drosophila ovarian niche functionality during ageing. We show that mam is upregulated in aged niche cells and that we can induce premature GSC loss by overexpressing mam in otherwise young niche cells. High mam levels in niche cells induce reduced Hedgehog amounts, a decrease in cadherin levels and a likely increase in reactive oxygen species, three scenarios known to provoke GSC loss. Mam is a canonical co-activator of the Notch pathway in many Drosophila tissues. However, we present evidence to support a Notch-independent role for mam in the ovarian germline niche.

scholarly journals Neural clocks and Neuropeptide F/Y regulate circadian gene expression in a peripheral metabolic tissue

eLife ◽  
2016 ◽  
Vol 5 ◽  
Author(s):  
Renske Erion ◽  
Anna N King ◽  
Gang Wu ◽  
John B Hogenesch ◽  
Amita Sehgal
Keyword(s):  
Cytochrome P450 ◽  
Fat Body ◽  
Circadian Gene ◽  
Specific Enzyme ◽  
Rhythmic Expression ◽  
Cytochrome P450 Genes ◽  
Mammalian Liver ◽  
Free Running ◽  
Neuropeptide F ◽  
Systemic Signals

Metabolic homeostasis requires coordination between circadian clocks in different tissues. Also, systemic signals appear to be required for some transcriptional rhythms in the mammalian liver and the Drosophila fat body. Here we show that free-running oscillations of the fat body clock require clock function in the PDF-positive cells of the fly brain. Interestingly, rhythmic expression of the cytochrome P450 transcripts, sex-specific enzyme 1 (sxe1) and Cyp6a21, which cycle in the fat body independently of the local clock, depends upon clocks in neurons expressing neuropeptide F (NPF). NPF signaling itself is required to drive cycling of sxe1 and Cyp6a21 in the fat body, and its mammalian ortholog, Npy, functions similarly to regulate cycling of cytochrome P450 genes in the mouse liver. These data highlight the importance of neuronal clocks for peripheral rhythms, particularly in a specific detoxification pathway, and identify a novel and conserved role for NPF/Npy in circadian rhythms.

Isolation and characterization of PbCS2 gene regulated by iron deficiency and auxin-based systemic signals in Pyrus betulifolia

2016 ◽  
Vol 205 ◽  
pp. 25-31
Author(s):  
Xiaoguang Li ◽  
Ying Gao ◽  
Yingli Li ◽  
Shuai Yan ◽  
Wenzhi Li ◽  
...  
Keyword(s):  
Iron Deficiency ◽  
Isolation And Characterization ◽  
Systemic Signals

scholarly journals Systemic signals in aged males exert potent rejuvenating effects on the ovarian follicle reserve in mammalian females

Aging ◽  
2010 ◽  
Vol 2 (12) ◽  
pp. 999-1003 ◽  
Author(s):  
Yuichi Niikura ◽  
Teruko Niikura ◽  
Ning Wang ◽  
Chonthicha Satirapod ◽  
Jonathan L. Tilly
Keyword(s):  
Ovarian Follicle ◽  
Systemic Signals

Systemic signals regulate ageing and rejuvenation of blood stem cell niches

Nature ◽  
2010 ◽  
Vol 463 (7280) ◽  
pp. 495-500 ◽  
Author(s):  
Shane R. Mayack ◽  
Jennifer L. Shadrach ◽  
Francis S. Kim ◽  
Amy J. Wagers
Keyword(s):  
Stem Cell ◽  
Blood Stem Cell ◽  
Stem Cell Niches ◽  
Systemic Signals

scholarly journals Chronic graft-versus-host disease: clinical presentation of multiple lesions of lichenoid and atrophic pattern

2013 ◽  
Vol 88 (5) ◽  
pp. 799-802
Author(s):  
Luiza Vasconcelos ◽  
Erica Cristina Vieira ◽  
Eliana Maria Minicucci ◽  
Ana Gabriela Salvio ◽  
Mair Pedro de Souza ◽  
...  
Keyword(s):  
Graft Versus Host Disease ◽  
Hematopoietic Cell Transplantation ◽  
Clinical Manifestations ◽  
Hematopoietic Cell ◽  
Host Disease ◽  
Graft Versus Host ◽  
Multiple Lesions ◽  
Systemic Signals ◽  
Atrophic Pattern

Graft-versus-host disease is observed mainly in recipients of hematopoietic cell transplantation and is expressed by cutaneous or systemic signals and symptoms. Graft-versus-host disease is clinically classified as acute or chronic. Chronic Graft-versus-host disease occurs in up to 70% of hematopoietic cell transplanted patients and its clinical manifestations have important impact on morbidity and quality of life. The authors report an expressive cutaneous, oral and adnexal involvement in a patient with chronic Graft-versus-host disease with multiple lesions of lichenoid and atrophic pattern.

Sign in / Sign up

Export Citation Format

Share Document