scholarly journals Involvement of the brain region containing pigment-dispersing factor-immunoreactive neurons in the photoperiodic response of the bean bug, Riptortus pedestris

2013 ◽  
Vol 217 (3) ◽  
pp. 453-462 ◽  
Author(s):  
T. Ikeno ◽  
H. Numata ◽  
S. G. Goto ◽  
S. Shiga
Keyword(s):  
Brain Region ◽  
Photoperiodic Response ◽  
Pigment Dispersing Factor ◽  
Riptortus Pedestris ◽  
Bean Bug ◽  
The Brain

scholarly journals Chromosome‐level genome assembly of the bean bug Riptortus pedestris

2021 ◽  
Author(s):  
Hai‐Jian Huang ◽  
Yu‐Xuan Ye ◽  
Zhuang‐Xin Ye ◽  
Xiao‐Tian Yan ◽  
Xin Wang ◽  
...  
Keyword(s):  
Genome Assembly ◽  
Riptortus Pedestris ◽  
Bean Bug ◽  
Chromosome Level

Abstract 306: Alamandine but not angiotensin-(1-7) produces cardiovascular effects in the Insular Cortex

Hypertension ◽  
2014 ◽  
Vol 64 (suppl_1) ◽  
Author(s):  
Fernanda R Marins ◽  
Aline C Oliveira ◽  
Fatimunnisa Qadri ◽  
Natalia Alenina ◽  
Michael Bader ◽  
...  
Keyword(s):  
Brain Region ◽  
Insular Cortex ◽  
Cardiovascular Effects ◽  
Endogenous Ligand ◽  
Renal Nerve ◽  
Renal Sympathetic Nerve Activity ◽  
Equimolar Dose ◽  
The Brain ◽  
Renal Sympathetic ◽  
Made In

In the course of experiments aimed to evaluate the immunofluorescence distribution of MrgD receptors we observed the presence of immunoreactivity for the MrgD protein in the Insular Cortex. In order to evaluate the functional significance of this finding, we investigated the cardiovascular effects produced by the endogenous ligand of MrgD, alamandine, in this brain region. Urethane (1.4g/kg) anesthetized rats were instrumented for measurement of MAP, HR and renal sympathetic nerve activity (RSNA). Unilateral microinjection of alamandine (40 pmol/100nl), Angiotensin-(1-7) (40pmol/100nl), Mas/MrgD antagonista D-Pro7-Ang-1-7 (50pmol/100nl), Mas agonist A779 (100 pmol/100nl) or vehicle (0,9% NaCl) were made in different rats (N=4-6 per group) into posterior insular cortex (+1.5mm rostral to the bregma). Microinjection of alamandine in this region produced a long-lasting (> 18 min) increase in MAP (Δ saline= -2±1 vs. alamandine= 12±2 mmHg, p< 0.05) associated to increases in HR (Δ saline= 2±2 vs. alamandine= 35±5 bpm; p< 0.05) and in the amplitude of renal nerve discharges (Δ saline = -2±1 vs. alamandine= 35±5.5 % of the baseline; p< 0.05). Strikingly, an equimolar dose of angiotensin-(1-7) did not produce any change in MAP or HR (Δ MAP=-0.5±0.3 mmHg and +2.7±1.2 bpm, respectively; p> 0.05) and only a slight increase in RSNA (Δ =7.3±3.2 %) . In keeping with this observation the effects of alamandine were not significantly influenced by A-779 (Δ MAP=+13± 2.5 mmHg, Δ HR= +26±3.6 bpm; Δ RSNA = 25± 3.4%) but completely blocked by the Mas/MrgD antagonist D-Pro7-Ang-(1-7) (Δ MAP=+0 ± 1 mmHg Δ HR= +4±2.6 bpm; Δ RSNA = 0.5± 2.2 %). Therefore, we have identified a brain region in which alamandine/MrgD receptors but not Ang-(1-7)/Mas could be involved in the modulation of cardiovascular-related neuronal activity. This observation also suggests that alamandine might possess unique effects unrelated to Ang-(1-7) in the brain.

Neurons important for the photoperiodic control of diapause in the bean bug, Riptortus pedestris

2008 ◽  
Vol 194 (8) ◽  
pp. 751-762 ◽  
Author(s):  
Kayo Shimokawa ◽  
Hideharu Numata ◽  
Sakiko Shiga
Keyword(s):  
Photoperiodic Control ◽  
Riptortus Pedestris ◽  
Bean Bug

Causal involvement of mammalian-type cryptochrome in the circadian cuticle deposition rhythm in the bean bug Riptortus pedestris

2011 ◽  
Vol 20 (3) ◽  
pp. 409-415 ◽  
Author(s):  
T. Ikeno ◽  
C. Katagiri ◽  
H. Numata ◽  
S.G. Goto
Keyword(s):  
Riptortus Pedestris ◽  
Bean Bug

Recent advancements in the field of nanotechnology for the delivery of anti-Alzheimer drug in the brain region

2018 ◽  
Vol 15 (6) ◽  
pp. 589-617 ◽  
Author(s):  
Mukta Agrawal ◽  
Swarnlata Saraf ◽  
Shailendra Saraf ◽  
Sophia G. Antimisiaris ◽  
Nobuhito Hamano ◽  
...  
Keyword(s):  
Brain Region ◽  
The Brain

scholarly journals Comparative cytology, physiology and transcriptomics of Burkholderia insecticola in symbiosis with the bean bug Riptortus pedestris and in culture

2019 ◽  
Vol 13 (6) ◽  
pp. 1469-1483 ◽  
Author(s):  
Tsubasa Ohbayashi ◽  
Ryo Futahashi ◽  
Mia Terashima ◽  
Quentin Barrière ◽  
Florian Lamouche ◽  
...  
Keyword(s):  
Riptortus Pedestris ◽  
Bean Bug

Cold acclimation increases cold tolerance independently of diapause programing in the bean bug, Riptortus pedestris

2017 ◽  
Vol 108 (4) ◽  
pp. 487-493 ◽  
Author(s):  
J. Rozsypal ◽  
M. Moos ◽  
S.G. Goto
Keyword(s):  
Cold Acclimation ◽  
Cold Tolerance ◽  
Negative Impact ◽  
Riptortus Pedestris ◽  
Short Day ◽  
Cold Tolerant ◽  
Bean Bug ◽  
The Difference ◽  
Pass Through ◽  
Short Days

AbstractThe bean bug (Riptortus pedestris) is a pest of soybeans and other legumes in Japan and other Asian countries. It enters a facultative adult diapause on exposure to short days. While photoperiodism and diapause are well understood in R. pedestris, knowledge of cold tolerance is very limited, as is information on the effect of diapause on cold tolerance. We examined the effect of photoperiod, cold acclimation, and feeding status on cold tolerance in R. pedestris. We found that cold acclimation significantly increased survival at −10°C in both long- and short-day adult R. pedestris. Since the difference in cold survival between long- and short-day cold-acclimated groups was only marginal, we conclude that entering diapause is not crucial for R. pedestris to successfully pass through cold acclimation and become cold tolerant. We observed similar effects in 5th instar nymphs, with both long- and short-day cold-acclimated groups surviving longer cold exposures compared with non-acclimated groups. Starvation, which was tested only in adult bugs, had only a negligible and negative impact on cold survival. Although cold tolerance significantly increased with cold acclimation in adult bugs, supercooling capacity unexpectedly decreased. Our results suggest that changes in supercooling capacity as well as in water content are unrelated to cold tolerance in R. pedestris. An analysis of metabolites revealed differences between the treatments, and while several metabolites markedly increased with cold acclimation, their concentrations were too low to have a significant effect on cold tolerance.

Sign in / Sign up

Export Citation Format

Share Document