Comments on: UV-B Light Sensing Mechanism Discovered In Plant Roots

By: Abby Hicks 1st period

Abby Hicks 1st period — Tue, 19 Jan 2010 02:14:13 +0000

This article is about a UV-B light sensing mechanism discovered in plant roots. Researchers found that plant roots can sense UV-B light and have noted the existance of a certain gene that is important in UV-B signaling. A study shows that the gene RUSI measures UV-B light amounts and carries this data on to parts of the plant whose job relates to growth and development. UV-B light can be helpful to young plants, but sometimes harmful when there is too much UV-B light. It is strange that roots should have sensors for UV-B light, but the gene RUSI is important to young plants when the plant’s roots are on top of the ground. The discovery of RUSI helps scientists to be able to examine other genes that take in UV-B light and turn the light data into how the plant should grow.

By: Zach Bennett 1st period

Zach Bennett 1st period — Mon, 18 Jan 2010 13:59:54 +0000

1)Scientists have discovered that plant roots can sense UV-B light
2)Early Edition of PNAS reveals that the gene RUS1 measures UV-B light levels and passes this information on to other parts of the plant
3)The discovery of RUS1 provides scientists with a platform to examine other key genes that receive UV-B light
4)It’s unusual that roots, normally covered in soil
5)uv b helps young plants stay on the right track of development

By: tonya heathington 1st period

tonya heathington 1st period — Mon, 30 Nov 2009 22:08:32 +0000

1. Scientists have study that plants roots can sense UV-B light.
2. Scientists found that plants with a mutated UV-B light sensor gene become hypersensitive to UV-B light and even under low intensity levels of UV-B light, their root growth is stunted and they fail to grow leaves.
3.The discovery of RUS1 provides scientists with a platform to examine other key genes.
4.A low dosage of UV-B light, for example the levels found in shady conditions or under fluorescent lighting, can provide important signals to the rest of the plant
5. The RUS1 gene is responsible for ensuring that young seedlings develop normally.

By: Savannah Meagher

Savannah Meagher — Mon, 26 Oct 2009 23:53:49 +0000

1.Scientists have discoverd that plant root can sense UV-B light and have identified a specific gene that is a vital player UV-B signaling, the communication between cells.
2. A low dosage of UV-B light, for example the levels found in shady conditions or under fluorescent lighting, can provide important signals to the rest of the plant and therefore beneficail to normal plant growth.
3.It help young plants to stay on the right track of development and aids seedlings morphogenesis, but too much UV-B light can be toxic.
4.The study found with plants mutated UV-B sensor gene become hypersenseitive UV-B light even under low intenseity levels of UV-B light, their root growth stunted and they fail to grow leaves.
5. Later in a plant’s life, root can be exposed after rainwash, geological moments or animal activity.

By: TARRELL CLEMONS 1ST PERIOD

TARRELL CLEMONS 1ST PERIOD — Mon, 17 Aug 2009 23:57:02 +0000

DO PLANTES HAVE TO BE IN THE SUN LIGHT OR THEY CAN BE IN THE WINDON SHLED THEY NEED WATER AND SPACE.