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Defence signals
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The bacterial pathogen Streptococcus pneumoniae colonizes the nasopharynx prior to causing disease, necessitating successful competition with the resident microflora. Cytokines of the IL-17 family are important in host defence against this pathogen but their effect on the nasopharyngeal microbiome is unknown. Here we analyse the influence of IL-17 on the composition and interactions of the nasopharyngeal microbiome before and after pneumococcal colonization.
20p
vilarryellison
29-10-2021
6
1
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Phytohormones are key regulators of plant growth, development, and signalling networks involved in responses to diverse biotic and abiotic stresses. Transcriptional reference maps of hormone responses have been reported for several model plant species such as Arabidopsis thaliana, Oryza sativa, and Brachypodium distachyon.
13p
visilicon2711
20-08-2021
12
1
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Rose is an important economic crop in horticulture. However, its field growth and postharvest quality are negatively affected by grey mould disease caused by Botrytis c. However, it is unclear how rose plants defend themselves against this fungal pathogen.
17p
vijichea2711
28-05-2021
8
1
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Jasmonates play an important role in plant stress and defence responses and are also involved in the regulation of anthocyanin synthesis in response to sucrose availability. Here we explore the signalling interactions between sucrose and jasmonates in response to cold stress in Arabidopsis.
13p
vijichea2711
28-05-2021
11
1
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A study on effect of jasmonate on disease progression as well as induction of defensin gene (PDF1.2) was carry out to explore the effectiveness of Jasmonic acid in triggering defence within the host tissues. The disease severity and expression of PDF1.2 gene was examined after treatment containing Jasmonic acid and pathogen to two ecotypes of Arabidopsis at different time intervals. Methyl jasmonate treatment was found to be effective in decreasing the disease incidence by lowering the disease index in both susceptible (WS) and tolerant ecotype (Col). Transcripts of PDF1.
9p
chauchaungayxua8
03-10-2020
14
2
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Present investigation envisage to explore the defense potential of this pathogen and to maximize the Jasmonic acid production by altering the nutrition and other growth conditions.
5p
trinhthamhodang1215
23-09-2020
24
0
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The plant hormone salicylic acid (SA) plays an essential role in the regulation of diverse biological processes throughout the entire lifespan of the plant. SA first emerged as an endogenous signal capable of inducing plant defence responses both at the site of infection and in the systemic tissue of the plant. For more than 200 years, the plant hormone salicylic acid (SA) has been studied for its medicinal use in humans.
15p
nguaconbaynhay7
15-08-2020
9
1
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We all know that Plants are sessile organisms they cannot go and talk like us, but plants continuously interact with each other and share their environment by different ways of communication. One of the important ways of interplant communication is belowground communication through Common Mycorrhizal Network, Plants are so kind they care and share each other, they use Common Mycorrhizal Network for sharing the nutrients and defence signals.
15p
trinhthamhodang1213
02-06-2020
7
1
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Plant perception of conserved microbe-derived or damage-derived molecules (so-called microbe- or damage-associated molecular patterns, MAMPs or DAMPs, respectively) triggers cellular signaling cascades to initiate counteracting defence responses.
15p
viminato2711
22-05-2020
8
1
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An important signal transduction pathway in plant defence depends on the accumulation of salicylic acid (SA). SA is produced in chloroplasts and the multidrug and toxin extrusion transporter ENHANCED DISEASE SUSCEPTIBILITY5 (EDS5; At4g39030) is necessary for the accumulation of SA after pathogen and abiotic stress.
10p
vihashirama2711
21-05-2020
16
1
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Plant cell walls are mainly composed of polysaccharides such as cellulose and callose. Callose exists at a very low level in the cell wall; however, it plays critical roles at different stages of plant development as well as in defence against unfavorable conditions.
17p
vishikamaru2711
29-04-2020
7
0
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Fruit cracking occurs easily under unsuitable environmental conditions and is one of the main types of damage that occurs in fruit production. It is widely accepted that plants have developed defence mechanisms and regulatory networks that respond to abiotic stress, which involves perceiving, integrating and responding to stress signals by modulating the expression of related genes.
15p
viuchiha2711
21-04-2020
3
1
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Mr. Adams is descended from one of the first families which founded the colony of the Massachusets Bay in 1630. He applied himself early to the study of the laws of his country; and no sooner entered upon the practice thereof, but he drew the attention, admiration, and esteem of his countrymen, on account of his eminent abilities and probity of character.
49p
nhokheo2
15-04-2013
38
4
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2-Cys peroxiredoxins are peroxidases devoid of prosthetic groups that mediate in the defence against oxidative stress and the peroxide activation of signaling pathways. This dual capacity relies on the high reactivity of the conserved peroxidatic and resolving cysteines, whose modification embraces not only the usual thiol–disulfide exchange but also higher oxida-tion states of the sulfur atom.
16p
viettel02
22-02-2013
32
2
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The signal transducers and activators of transcription (STATs) convey sig-nals from the membrane to the nucleus in response to cytokines or growth factors. STAT3 is activated in response to cytokines involved mostly in cell proliferation; STAT1 is activated by cytokines, including interferon-c, involved in defence against pathogens and the inhibition of cell prolifera-tion.
11p
viettel02
22-02-2013
34
2
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