Dietary Houttuynia cordata leaf extract and meal enhances the immunity and expression of immune genes in Labeo rohita (Hamilton, 1822)

2020 ◽  
Vol 52 (1) ◽  
pp. 381-394
Author(s):  
Chetan K. Garg ◽  
Narottam P. Sahu ◽  
Manas K. Maiti ◽  
N. Shamna ◽  
Ashutosh D. Deo ◽  
...  
Keyword(s):  
Leaf Extract ◽  
Labeo Rohita ◽  
Houttuynia Cordata ◽  
Immune Genes

Effect of dietary Houttuynia cordata leaf meal and leaf extract on the growth performance, nutrient utilization and expression of IGF‐I gene in Labeo rohita

2019 ◽  
Vol 25 (3) ◽  
pp. 702-711 ◽  
Author(s):  
Chetan K. Garg ◽  
Narottam P. Sahu ◽  
N. Shamna ◽  
Ashutosh D. Deo ◽  
Femi J. Fawole ◽  
...  
Keyword(s):  
Growth Performance ◽  
Leaf Extract ◽  
Labeo Rohita ◽  
Nutrient Utilization ◽  
Houttuynia Cordata ◽  
Leaf Meal ◽  
Igf I ◽  
I Gene

Biogenic Gold Nanoparticles and its Antibacterial Activities: Houttuynia Cordata Leaf Extract

2014 ◽  
Vol 1051 ◽  
pp. 392-397
Author(s):  
T.V.M. Sreekanth ◽  
In Yong Eom
Keyword(s):  
Gold Nanoparticles ◽  
Leaf Extract ◽  
Antibacterial Activities ◽  
Gram Negative Bacteria ◽  
Gram Positive ◽  
Houttuynia Cordata ◽  
Gram Negative ◽  
Gram Positive Bacteria ◽  
Visible Spectra ◽  
Uv Visible

Gold nanoparticles (AuNPs) can be prepared in a number of chemical techniques, which are not environmentally friendly. Biosynthesis of nanoparticles by plant extracts is currently under exploitation. In this work, we describe an eco-friendly technique for green synthesis of AuNPs from AuCl4 solution using the Houttuynia cordata leaf extract as reducing agent. The AuNPs were characterized using UV-Visible spectroscopy, SEM, TEM, FTIR and AFM. The UV-Visible spectra indicate a strong plasma resonance that is located at 535 nm. The antibacterial activity of AuNPs was performed on various gram positive and gram negative bacteria. The AuNPs showed more inhibitory activity on gram negative than gram positive bacteria.

scholarly journals Impact of dietary leaf extracts of Black pepper Piper nigrum L. on the growth, hematological and immunological parameters of Labeo rohita (Hamilton, 1822) cultured in glass aquaria

2023 ◽  
Vol 83 ◽  
Author(s):  
A. Ullah ◽  
H. Azmat ◽  
Z. Masood ◽  
F. Arooj ◽  
S. M. Hussain ◽  
...  
Keyword(s):  
Immune Response ◽  
Growth Performance ◽  
Proximate Composition ◽  
Leaf Extract ◽  
Labeo Rohita ◽  
Hematological Parameters ◽  
Black Pepper ◽  
Piper Nigrum ◽  
Total Hardness ◽  
Average Weight

Abstract A study was conducted to evaluate the effect of Piper nigrum (black pepper) leaf extract on on the growth performance, proximate composition, hematological parameters, and immune response of Labeo rohita fingerlings with an average weight of 22.14 ± 0.98g. Aftrer acclimation for two weeks, fish (n=25) were randomly selected and placed in four glass aquaria (T0, T1, T2 and T3) at constant water temperature (30.0 ± 1.0 °C), pH (7.50 ± 0.5) and total hardness (200 ± 2.0 mgL,-1) for a period of 12 weeks, with three replicates each. Fish were fed with P. nigrum leaf extract supplemented feed @ 0.0%, 1.0%, 2.0% and 3.0% in T0, T1,T2 and T3, respectively. At the end of experiment, five fish were randomly selected from each aquaria for proximate composition, gut and skin microbial load, hematological parameters. Total proteins, albumins, and globulins were also recorded to evaluate immunological memory. The result revealed that fish in T2 showed better growth performance with an average weight gain of 56.11 ± 0.51 g. Thus, it had been concluded that Piper nigrum, a medicinal plant, can also be used to enhance the growth performance and immune response of Labeo rohita as attractive alternatives against antibiotics and vaccines and has shown no negative side effects on fish health as well as on its environment.

scholarly journals Molecular insights into the mechanisms of susceptibility of Labeo rohita against oomycete Aphanomyces invadans

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
P. K. Pradhan ◽  
Dev Kumar Verma ◽  
Luca Peruzza ◽  
Shubham Gupta ◽  
Syed Assim Haq ◽  
...  
Keyword(s):  
Antigen Processing ◽  
Time Course ◽  
Labeo Rohita ◽  
Management Strategies ◽  
Head Kidney ◽  
Receptor Signaling ◽  
Susceptible Host ◽  
Immune Genes ◽  
Lectin Receptor ◽  
Indian Major Carps

Abstract Aphanomyces invadans, the causative agent of epizootic ulcerative syndrome, is one of the most destructive pathogens of freshwater fishes. To date, the disease has been reported from over 160 fish species in 20 countries and notably, this is the first non-salmonid disease that has resulted in major impacts globally. In particular, Indian major carps (IMCs) are highly susceptible to this disease. To increase our knowledge particularly with regards to host immune response against A. invadans infection in a susceptible host, the gene expression profile in head kidney of A. invadans-infected and control rohu, Labeo rohita was investigated using RNA sequencing. Time course analysis of RNA-Seq data revealed 5608 differentially expressed genes, involved among others in Antigen processing and presentation, Leukocyte transendothelial migration, IL-17 signaling, Chemokine signaling, C-type lectin receptor signaling and Toll-like receptor signaling pathways. In the affected pathways, a number of immune genes were found to be downregulated, suggesting an immune evasion strategy of A. invadans in establishing the infection. The information generated in this study offers first systematic mechanistic understanding of the host–pathogen interaction that might underpin the development of new management strategies for this economically devastating fish-pathogenic oomycete A. invadans.

Combined experimental and computational studies on corrosion inhibition of Houttuynia cordata leaf extract for steel in HCl medium

2020 ◽  
Vol 315 ◽  
pp. 113787 ◽  
Author(s):  
Le Thanh Thanh ◽  
Nguyen Si Hoai Vu ◽  
Phan Minh Quoc Binh ◽  
Vinh Ai Dao ◽  
Vu Thi Hanh Thu ◽  
...  
Keyword(s):  
Corrosion Inhibition ◽  
Leaf Extract ◽  
Computational Studies ◽  
Houttuynia Cordata ◽  
Hcl Medium
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