science project. HELP!!!!

sky · Post by **sky** » Sun Jan 21, 2007 5:41 pm

i need help on my research report.Its how different lighting effects a plants growth, one is going to be in sunlight, one i neon lighting, one in lamp lighting, and one in the dark. I really need help. thanks

sky · Post by **sky** » Sun Jan 21, 2007 5:45 pm

can any one help?

MelissaB · Post by **MelissaB** » Sun Jan 21, 2007 6:05 pm

Sky,

This is a web-forum, not a chat room. People typically respond to students within 24 hours, not minutes.

What is it that you need help with? Without more information, I'm afraid we can't give you any advice.

sky · Post by **sky** » Sun Jan 21, 2007 6:31 pm

im not sure what to look up for the background report.

MelissaB · Post by **MelissaB** » Mon Jan 22, 2007 7:14 am

Sky,

What sources are you allowed to use? Can you use the internet? I'm sure there will be many hits if you type in 'how does lighting affect plants' or something similar to google or ask.com. If you can't use internet sources, I suggest you go to your local library and ask a librarian for help.

What grade are you in?

sky · Post by **sky** » Mon Jan 22, 2007 7:27 pm

i can use basically anything for a refrence. Im in 8th grade why?

MelissaB · Post by **MelissaB** » Tue Jan 23, 2007 7:40 am

I wanted to know what grade you were in because I wouldn't want to point, say, someone in elementary school toward a resource they wouldn't understand.

If you are allowed to use anything, then I would start by looking up some of your keywords (type of light, plant growth) on google or ask.com.

Here is a really interesting review about the genetics of light-dependent plant growth, though it might be a little advanced for an eighth-grader:

Annual Review of Cell and Developmental Biology
Vol. 13: 203-229 (Volume publication date November 1997)
(doi:10.1146/annurev.cellbio.13.1.203)

LIGHT CONTROL OF PLANT DEVELOPMENT

Christian Fankhauser and Â Joanne Chory Â
Plant Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, California 92037; e-mail: [email protected]

ABSTRACT

To grow and develop optimally, all organisms need to perceive and process information from both their biotic and abiotic surroundings. A particularly important environmental cue is light, to which organisms respond in many different ways. Because they are photosynthetic and non-motile, plants need to be especially plastic in response to their light environment. The diverse responses of plants to light require sophisticated sensing of its intensity, direction, duration, and wavelength. The action spectra of light responses provided assays to identify three photoreceptor systems absorbing in the red/far-red, blue/near-ultraviolet, and ultraviolet spectral ranges. Following absorption of light, photoreceptors interact with other signal transduction elements, which eventually leads to many molecular and morphological responses. While a complete signal transduction cascade is not known yet, molecular genetic studies using the model plant Arabidopsis have led to substantial progress in dissecting the signal transduction network. Important gains have been made in determining the function of the photoreceptors, the terminal response pathways, and the intervening signal transduction components.