Pollen dating method

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Well, the outdoor allergy season is almost over and we will soon be finished doing collections and providing information to the public through our reports that we produce.

The pollen in the air is generally at low levels or even absent on many days now. It came as a surprise to me recently to realize how much is known about the immune responses of plants and, moreover, how much there is to know.

She has a master's degree in bioengineering from the University of Washington and a graduate certificate in science writing from the University of California Santa Cruz.

Aerobiology Research was first formed in 1994 to collect outdoor air samples and report on pollen and fungal spore levels.

The oldest DNA snippets (which tend to be shorter because DNA breaks down over time) are found in many places on the shroud, and come from genetic lineages typically found only in India, Barcaccia said.

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To truly determine where the cloth was manufactured, the researchers would need to analyze the DNA from the flax seeds used to make the linen shroud, which was not done, he added.Still, Farey said he's about 40 percent convinced the shroud is authentic and about 60 percent inclined to believe it is a forgery."There is a pretty substantial amount of evidence on both sides," Farey said.If researchers can one day figure out how to test the isotopes in the limestone dust found on the shroud, they could say with greater certainty whether the shroud was ever in Jerusalem, he said.Tia has interned at Science News, Wired.com, and the Milwaukee Journal Sentinel and has written for the Center for Investigative Reporting, Scientific American, and Science Now.

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