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Tag: "fruit" at biology news

Paleontologists learn how not to become a fossil

...ve paleontologists the way geneticists use mice or fruit flies as model systems. Jablonski called the clam "a real bellweather" for understanding many long-term changes in biodiversity. Said Kidwell: "This group is hughly important out there in the modern seas, constituting a big fraction of animal divers...

Resveratrol prolongs lifespan and delays onset of aging-related traits in a short-lived vertebrate

...anisms such as yeast, the worm C. elegans, and the fruit fly Drosophila. However, until now, life-long pharmacological trials were performed in the worm or fly model organisms because of their very small size, very short natural lifespan, and affordable cultivation costs. Laboratory mice, on the other hand...

Fruit fly reveals a potential connection between dementia and cancer

...iated with Alzheimer's disease in the brain of the fruit fly, researchers have demonstrated an intriguing link between neuronal death and proteins previously associated with cancer. The findings are reported by Vik Khurana, Mel Feany, and colleagues from Brigham and Women's Hospital, Harvard Medical Schoo...

Confidence in memory performance helps older adults remember

...a list of 30 categorizable words, such as types of fruit and flowers. Middle-aged and older adults who perceived greater control over cognitive functioning were more likely to categorize the words and had better recall performance, Lachman notes. "It's no surprise that age-related losses or lapses in memo...

Gene thwarts some pathogens, gives access to others, could save crops

... people and in the laboratory research insect, the fruit fly. As Botrytis cinerea, a pathogen that makes strawberries gray and fuzzy, tries to invade a plant, the gene BIK1 recognizes the pathogen and sets off a defensive reaction. Botrytis is a type of pathogen that can infect and obtain nutrients from d...

More evidence mammals, fruit flies share make-up on function of biological clocks

...London offers additional evidence that mammals and fruit flies share a common genetic makeup that determine...tanewsky of the University of London. Drosophila fruit flies are commonly used for research on biological, or circadian, clocks because of the relative eas...

UCR researchers design chip that can improve citrus varieties

...improvement of citrus agriculture and post-harvest fruit handling, as well as to understand mechanisms unde...entually to better methods of storage that improve fruit flavor." Manufactured by Affymetrix, Inc., the GeneChip® Citrus Genome Array is made up of a glass...

Discovery may speed forest biotechnology

...or to important advances in intensive forestry and fruit tree improvement. Information of this type, resea...enefits, such as earlier or more heavily flowering fruit tree varieties. Especially in situations where conventional approaches are ineffective, the gene cou...

UC San Diego biologists solve plant growth hormone enigma

...gricultural problems, such as how to make seedless fruit or plants with stronger stems." Applying auxin t...an promote root development in cuttings, stimulate fruit development in the absence of fertilization or, in excess, kill weeds. However, this study is the f...

New fruit fly protein illuminates circadian response to light

...in required for the circadian response to light in fruit flies. The discovery of this protein ?named JET ?b...l, namely from one time zone to another. A mutant fruit fly that possesses jetlag-like behaviors enabled senior author Amita Sehgal, PhD, Professor of Neuro...

Chimpanzees can transmit cultural behavior to multiple 'generations'

... either by sliding or lifting the door Ð to reveal fruit inside. Chimpanzees in a third social group, used as the control group, were allowed to explore the testing box but were given no instruction or training to open the testing box. Once each individual animal from the first two social groups proved suc...

Study finds how organs monitor themselves during early development

...n many genetics labs: Drosophila melanogaster, the fruit fly. Dr. Lehmann and post-doctoral fellow Lilach G...lboa, Ph.D., decoded the process in the developing fruit fly ovary that allows the ovary to monitor the number of germ cells it contains and to correct that ...

UT Southwestern researchers find gene mutation that leads to 'broken hearts'

...hwestern Medical Center have identified a group of fruit fly gene mutations responsible for "broken hearts"...that cause human heart defects. "We engineered a fruit fly so that the heart would glow in the dark and found a new type of malformation, completely unexpe...

Seeing the serpent

...cts and other small prey, or to handle and examine fruit and other foods. Isbell suggests instead that primates developed good close-up eyesight to avoid a dangerous predator -- the snake. "A snake is the only predator you really need to see close up. If it's a long way away it's not dangerous," Isbell...

FSU biologists uncover mechanisms that shape cells for better or worse

... to a cell's proper functioning. Their findings in fruit fly eggs may help to clarify how muscular dystroph... cell polarity in Drosophila oocytes (unfertilized fruit fly eggs) also are known players in the pathogenesis of those diseases. The research performed by ...

Heal thyself: Systems biology model reveals how cells avoid becoming cancerous

...ng in everything from yeasts to humans and mice to fruit flies." Researchers have previously identified hundreds of genes involved in repairing MMS damage. However, they have been mystified by another group of genes whose expression is sharply affected by DNA damage, but which appear to play no role in re...

Primates take weather into account when searching for fruits

...kely to revisit fig trees (in which they had found fruit before) after a period of warm and sunny days than...ure and solar radiation and the maturation rate of fruit and insect larvae. The findings are also consistent with the idea that the evolution of primate cogn...

Molecular DNA switch found to be the same for all life

..., and in a eukaryote, Drosophila melanogaster, the fruit fly. Taken with earlier research that identified ...ogales and Botchan and their collaborators studied fruit fly ORC using single-particle electron microscopy. Their images revealed for the first time how the...

Agriculture and tropical conservation: rethinking old ideas

... areas are traditional "agroforests"---farms where fruit and timber trees share space with other crops, Vandermeer said. "That's the kind of agriculture that's friendly to biodiversity, and that's the kind of agriculture that peasant farmers actually do." Vandermeer and Perfecto, a professor of natural r...

The brain's executive is an 'event planner'

...keys were asked to manipulate computer cursors for fruit juice rewards have revealed that the brain's "executive" center plans behaviors not by specifying movements required for given actions, but rather the events that will result from those actions. The distinction is significant, said the researchers, ...

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