X

Download Viruses and Algae PowerPoint Presentation

SlidesFinder-Advertising-Design.jpg

Login   OR  Register
X


Iframe embed code :



Presentation url :

Home / Health & Wellness / Health & Wellness Presentations / Viruses and Algae PowerPoint Presentation

Viruses and Algae PowerPoint Presentation

Ppt Presentation Embed Code   Zoom Ppt Presentation

PowerPoint is the world's most popular presentation software which can let you create professional Viruses and Algae powerpoint presentation easily and in no time. This helps you give your presentation on Viruses and Algae in a conference, a school lecture, a business proposal, in a webinar and business and professional representations.

The uploader spent his/her valuable time to create this Viruses and Algae powerpoint presentation slides, to share his/her useful content with the world. This ppt presentation uploaded by worldwideweb in Health & Wellness ppt presentation category is available for free download,and can be used according to your industries like finance, marketing, education, health and many more.

About This Presentation

Slide 1 - Viruses and Algae By Stephanie Boone
Slide 2 - Virus Facts Most abundant life form in aquatic systems. In the ocean the total number exceeds 1029. Marine viruses high concentrations up to 10 8 in ml-1 Play a significant role in the transfer of matter and energy in aquatic microbial food webs. Infect at least some members of all the major classes of freshwater and marine algae. Reported in at least 44 taxa of eukaryotic algae Includes members 10 of 14 classes of algae Virus Interactions range from true parasitism (chronic infection/cellular release without death) to predation (lytic infection resulting in cell death).
Slide 3 - Ecological Significance Play a significant role in the transfer of matter and energy in aquatic microbial food webs. Viral lysis of algae effects carbon nutrient flow. Carbon stored in dissolved organic matter released into system. May influence carbon cycling and climate. Significant role in transfer of information through DNA. Important role in algae blooms. effect marine community structure.
Slide 4 - Algal Viruses Despite the established ecological importance of marine viruses there have been few studies which extensively investigate and characterize viruses of algae. The viruses studied extensively fall into two catagories. Large ds DNA viruses. PBCV-1, Fsv, EsV Small viruses. HaRNA, HaNIV
Slide 5 - Large dsDNA Viruses Family Phycodnaviridae Paramecium bursaria chorella virus (PBCV-1) infect eukaryotic unicellular-like green algae. Ectocarpus virus (EsV) Feldmannnia virus (FsV) infect marine brown alga. Common characteristics Found on five continents tropical, subtropical seawater, and freshwater large icosahedral particles 130-190 nm diameter large dsDNA genomes 160-380 kb Viral capsid assembly and DNA packaging occurs in the cytoplasm
Slide 6 - PBVC-1/ Chlorella virus PBVC-1 infects chlorella algae strain NC64A or Pbi. Chlorella algae are small, spherical, unicellular, nonmotile, asexual reproducing green algae. Hereditary endosymbionts in protozoan P. bursaria - resistant to viral infection when in symbiotic relationship. PBCV-1 - linear nonintegrated genome 16 classes of virus Virus attaches to agal cell wall with hexagonal vertices, digests the wall releases viral DNA into cell. Packaging and assembly of virions takes place in cytoplasm virus released by localized cell wall lysis
Slide 7 - EsV & FsV- Brown algal viruses Ectocarpus virus (EsV) and Feldmannia virus (FsV) infect brown algae densely packed polyhedral viral particles do not infect vegetative cells viral particles displace normal reproductive cells producing sterility Viral capsid assembly and DNA packaging occur in the cytoplasm after nuclear membrane degeneration.
Slide 8 - Small Viruses Heterosigma akashiwo nuclear inclusion virus (HaNIV) and Heterosigma akashiwo RNA virus (HaRNAV) infect the algae Heterosigma akashiwo (Raphidophyceae) a toxic bloom-forming microalgae Host specific - simultaneous coinfection. HaRNAV 25 nm diameter polyhedral symmetry HaNIV 30 nm diameter replicates to high copy number (105) before host lysis nonenveloped and hexagonal implying icosahedral symmetry. Each virus forms a crystalline array Arrays located in different parts of cell.
Slide 9 - References: Van Etten J L, & Meints R H. Giant viruses infecting algae. Annual Review of Microbiology 1999;53:447-494. Weinbauer M G, & Rassoulzadegan F. Are viruses driving microbial diversification and diversity. Envirnmental Microbiology 2004; 6: 1-11. Lawrence J E. & Chan A M. A novel virus (HaNIV) causes lysis of the toxic bloom-forming alga Heterosigma akashiwo (Raphidophyceae). Journal of Phycology 2001; 37:216-222. Tai V, Lawerence J E, Lang A S, Chan A M, Culley A I, Suttle C A. Characetrization of HaRNAV, a single stranded RNA virus causing lysis of Heterosigma akashiwo (Raphidophyceae). Journal of Phycology 2003; 39: 343-352. Conclusion: Need more research. We know very very little about the viruses that infect algae.
 

Frequently Asked Questions

> About SlidesFinder?

Slidesfinder is a website that allows users to upload and share their PowerPoint presentations online. It provides a platform for individuals and businesses to share their ideas and knowledge through presentations, and for others to view and download these presentations for educational or professional purposes.
Slidesfinder offers a wide range of presentation topics and categories, including business, education, science, technology, health, and more. Users can also search for presentations using keywords, tags, or by category. The website provides tools to create professional presentations with rich media, animations, and graphics.



One of the key features of Slidesfinder is its user-friendly interface, which allows users to easily upload, view, and share presentations. Users can also embed their presentations in their websites or blogs using the website's embed code feature.
Slidesfinder also offers premium services, such as the ability to create private presentations and to download presentations in high-quality formats. However, the basic features of Slidesfinder are free to use, making it accessible to anyone who wants to share their ideas and knowledge through presentations.

> How do I register with SlidesFinder?

Go to registration page (you can see signup link on top of website page) https://www.slidesfinder.com/signup . If you have facebook/gmail account them just click on SIGN IN WITH FACEBOOK OR SIGN IN WITH GOOGLE button, by this you will be a registered member of slidesfinder without filling any form, required detail automatically will be fatch from your account. If you do not a Facebook account, then click on "Signup". Fill all required fields and you will be a registered member of slidesfinder.

> Is slidesfinder account confirmation is mandatory?

Yes it is mandetory to active your account to login.

> Do I need to signup/login on SlidesFinder before uploading a PowerPoint presentation?

Yes, you need to login with your account before uploading presentation. Your username will be displayed on your uploaded presentation. Your registered email id is needed for sending your stats of uploaded presentation.

Slidesfinder is a sharing website for PowerPoint presentations search and share. Find your interest in the form of powerpoint presentations on slidesfinder and save your valuable time . On Slidesfinder you get presentations from our huge library of professional ppt presentations. We believe in making your search INFORMATIVE and FUN. Find your best ppt presentation from a pool of PowerPoint presentations stacked under important industry categories like business & management, heath & Wellness,eduction & training etc. We provide unique informative PowerPoint presentation for marketers, presenters and educationists. These professional PowerPoint presentations are uploaded by professionals from across numerous industry segments.These ppt presentations are available for FREE download.

Not just finding your interest, but facilitate you broadcast your interest. We have created this platform for easy sharing of PowerPoint presentations, ensuring that these presentations get maximum exposure. Create your slidesfinder account and upload PowerPoint presentations for free, share on social media platforms and BUILD YOUR CROWD WITH PRESENTATION !!

The Great Buddha says, "Share your knowledge.It’s a way to achieve immortality"! So, start sharing knowledge and we are here to make that immortal !!

© 2013-2024 SlidesFinder. All rights reserved.

Re-productivity of content are not allowed. Without prior written permission from author, commercial use of any content is illegal.