Hollies Get Prickly for a Reason

With shiny evergreen leaves and bright red berries, holly trees are a naturally festive decoration seen throughout the Christmas season.

They're famously sharp. But not all holly leaves are prickly, even on the same tree. And scientists now think they know how the plants are able to make sharper leaves, seemingly at will. (Watch a video about how Christmas trees are made.)

A new study published in the Botanical Journal of the Linnean Society suggests leaf variations on a single tree are the combined result of animals browsing on them and the trees' swift molecular response to that sort of environmental pressure.

Carlos Herrera of the National Research Council of Spain led the study in southeastern Spain. He and his team investigated the European holly tree, Ilex aquifolium. Hollies, like other plants, can make different types of leaves at the same time. This is called heterophylly. Out of the 40 holly trees they studied, 39 trees displayed different kinds of leaves, both prickly and smooth.

Five holly leaves from the same tree.

Photographs by Emmanuel Lattes, Alamy

Some trees looked like they had been browsed upon by wild goats and deer. On those trees, the lower 8 feet (2.5 meters) had more prickly leaves, while higher up the leaves tended to be smooth. Scientists wanted to figure out how the holly trees could make the change in leaf shape so quickly.

All of the leaves on a tree are genetic twins and share exactly the same DNA sequence. By looking in the DNA for traces of a chemical process called methylation, which modifies DNA but doesn't alter the organism's genetic sequence, the team could determine whether leaf variation was a response to environmental or genetic changes. They found a relationship between recent browsing by animals, the growth of prickly leaves, and methylation.

"In holly, what we found is that the DNA of prickly leaves was significantly less methylated than prickless leaves, and from this we inferred that methylation changes are ultimately responsible for leaf shape changes," Herrera said. "The novelty of our study is that we show that these well-known changes in leaf type are associated with differences in DNA methylation patterns, that is, epigenetic changes that do not depend on variation in the sequence of DNA."

"Heterophylly is an obvious feature of a well-known species, and this has been ascribed to browsing. However, until now, no one has been able to come up with a mechanism for how this occurs," said Mike Fay, chief editor of the Botanical Journal of the Linnean Society and head of genetics at the Kew Royal Botanic Gardens. "With this new study, we are now one major step forward towards understanding how."

Epigenetic changes take place independently of variation in the genetic DNA sequence. (Read more about epigenetics in National Geographic magazine's "A Thing or Two About Twins.")

"This has clear and important implications for plant conservation," Herrera said. In natural populations that have their genetic variation depleted by habitat loss, the ability to respond quickly, without waiting for slower DNA changes, could help organisms survive accelerated environmental change. The plants' adaptability, he says, is an "optimistic note" amidst so many conservation concerns. (Related: "Wild Holly, Mistletoe, Spread With Warmer Winters.")

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NRA to Speak on Stopping Newtown Repeat

For the past week, leadership at the National Rifle Association has largely stayed away from the media, but this morning the group may weigh in on how to keep a deadly shooting massacre like last week's at a Newtown, Conn., elementary school from happening again.

The NRA will hold a news conference in Washington, D.C., just before 11 a.m.

Its leadership has held off on interviews this week after refusing to appear on Sunday morning public affairs shows this past weekend.

The group came under pressure after Adam Lanza, 20, killed 20 children and six adults before shooting himself at Sandy Hook Elementary School in Newtown last Friday.

"Out of respect for the families, and as a matter of common decency, we have given time for mourning, prayer and a full investigation of the facts before commenting," the group said in a press release Tuesday. "The NRA is prepared to offer meaningful contributions to help make sure this never happens again."

NRA News anchor Ginny Simone said Thursday that in the wake of the Sandy Hook shooting, membership surged "with an average of 8,000 new members a day."

New York City Mayor Michael Bloomberg has said the NRA is partially to blame for the tragedy.

"We're not trying to take away your right to advance the interests of gun owners, hunters, people who want to protect themselves," Bloomberg told "Nightline" anchor Cynthia McFadden in an interview Thursday. "But that's not an absolute right to encourage behavior which causes things like Connecticut. In fact, Connecticut is because of some of their actions."

Christian Gooden/St. Louis Post-Dispatch/AP Photo

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The guns used in the attack were legally purchased and owned by the shooter's mother, Nancy Lanza, who Adam Lanza shot to death before his assault on the school.

In the aftermath of the shooting, many, including Bloomberg, have called for stricter regulations on the type of weapons used in this and other instances of mass gun violence this year.

Sen. Dianne Feinstein, D-Calif., has said she intends to introduce a bill banning assault weapons on the first day of next year's Congress -- a step the president said he supports.

President Obama announced Wednesday that Vice President Joe Biden will head a task force of leaders from across the country that will evaluate the best solutions to reduce gun violence in the United States.

Obama said he will "use all the powers of this office to help advance efforts aimed at preventing more tragedies like this."

Mayors Against Illegal Guns, of which Mayor Bloomberg is co-chair, released a letter to President Obama signed by more than 750 mayors calling on him to produce a plan to "make it harder for dangerous people to possess guns."

The letter asked for mandatory background checks for gun buyers, a ban on high-capacity rifles and ammunition magazines, and a designation of gun trafficking as a federal crime.

ABC News' George Stephanopoulos looked at whether strict gun control laws like those that have worked for the United Kingdom and Japan could work for the U.S. on "Good Morning America" Thursday.

Others have argued that, rather than banning guns, the government should be arming teachers and administrators in schools so that they can defend students in the event of another school shooting.

While Michigan Gov. Rick Snyder vetoed a measure that would have let guns into schools on Tuesday, Texas Gov. Rick Perry and Virginia Gov. Bob McDonnell praised the idea.

Speaking on the NRA's daily news program Tuesday, Dave Koppel of the Independence Institute said the teachers at Sandy Hook should have had weapons.

"We'd certainly be talking about fewer innocent people and children dead," Koppel said.

While a national debate over the necessary solutions to prevent a tragedy of this nature from ever happening again wages on, Connecticut residents will have to wait "several months" before the final Connecticut State Police report on the Newtown shootings is complete.

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In the Loop’s presidential election contest winners

(Marlon Correa)
The presidential popular vote counting is just about over — although Cook Political Report guru David Wasserman, who has President Obama at 50.97 percent of the vote now, says there are still some yet to be counted.

But if we’re going to get t-shirts out to the winners of the In The Loop election contest (popular vote) in time for Christmas, we’ve got to stop the count now (kind of like the Supreme Court did in 2000).

So here are the winners — ties broken by time of entry.

1. Emil Marcus, a teacher from Matawan, N.J., who was .03 percent off, predicted on Sept. 11 that Obama would win 51 percent of the vote.

2. Matthew Thomas, a restaurateur from Fredericksburg, Va. predicted 51 percent the next afternoon.

3. Martha Steinbock, a retiree from Silver Spring, was the third person to enter with the same percentage.

4. Stuart Davis, a retired teacher from Arlington — and winner of the electoral vote portion of the contest — wins again with his entry of 51 percent.

Three people predicted a lower vote than Obama got, but only by .07 per cent:

5.William Bennett, not the former secretary of education but a Washington lawyer, predicted Obama would get 50.9 percent of the popular vote.

6. Frank W. Krogh, a lawyer from Arlington, entered the same calculation.

7. Walter Smith, of the District of Columbia, the executive director of a nonprofit advocacy organization. also was in that winning category.

8. Henry Resnikoff of Essex, Conn. was next, predicting Obama would garner 51.06 percent of the vote, so he was just .09 percent off.

A number of Loop Fans predicted Obama would win 51.1 percent of the vote — .14 percent too high.The first in with those guesses were:

9. Michael G. Pilot, a retired economist from Arlington; and,

10. Joe Foley of Potomac, who runs a lobbying and public affairs firm.

In addition to an official In the Loop t-shirt, the winners can also note that their predictions were closer than the formidable statistician and blogger Nate Silver’s 50.80 prediction.

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Singapore shares end 0.5% higher

SINGAPORE -- Singapore share prices ended 0.5% higher on Thursday, shrugging off negative cues from Wall Street.

The blue-chip Straits Times Index (STI) rose 16.95 points to end at 3,175.52, supported by the announcement of fresh easing measures by the Bank of Japan.

While the market opened lower amid fresh concerns over whether a US fiscal cliff deal will emerge before year-end, support came from the BOJ's moves to increase the size of its asset purchase programme and its plans to review its inflation target.

In the broader market, 2.03 billion shares changed hands, with gainers and losers nearly evenly matched. There were 198 gainers and 196 losers.

Among the gainers, Olam rose 1.3% to S$1.56. In two straight days of buying in the open market, Singapore's Temasek Holdings has raised its stake in the commodities trader to 18% from 16%.

- CNA/ir

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CWG case: Order on framing of charges against Kalmadi tomorrow

NEW DELHI: A Delhi court will pronounce tomorrow its order on framing of charges against former Commonwealth Games Organising Committee (OC) Chairman Suresh Kalmadi and 10 others in a games-related graft case.

Special CBI Judge Talwant Singh had on November 21 slated for tomorrow the pronouncement of order on charges in the case also involving former CWG OC Secretary General Lalit Bhanot as an accused in the case.

Besides Kalmadi and Bhanot, nine others have been charge-sheeted by the CBI for allegedly "illegally" awarding a contract to install Timing, Scoring and Results system for the 2010 CWG to Swiss Timing at an inflated rates causing a loss of over Rs 90 crore to the public exchequer.

They have been charge-sheeted under various provisions of the IPC, including those of criminal conspiracy under section 120(B), cheating (section 420), forgery (section 468 & 471) of the Indian Penal Code and the Prevention of Corruption Act.

The CBI had alleged Kalmadi and others had rejected Spanish firm MSL's much lower bid of Rs 62 crore and awarded the contract to Swiss Timing Omega, causing a loss of over Rs 90 crore to the exchequer.

The other nine accused in the case are OC's Director General V K Verma, Director General (Procurement) Surjit Lal, Joint Director General (Sports) A S V Prasad and Treasurer M Jayachandran. They are no more associated with the sporting body.

Promoters of two construction companies - P D Arya and A K Madan of Faridabad-based Gem International and A K Reddy of Hyderabad-based AKR Constructions are also accused in the case.

Besides the two firms, Swiss Timing Omega, the Swiss firm which was awarded the contract allegedly at exorbitant rates, is also an accused in the case.

During the arguments on charges, CBI counsel V K Sharma had argued that Kalmadi and others had decided to award the contract for installing the TSR system for the CWG to Swiss Timing even before the firm had bid for it.

Sharma had also said that for TSR installation, two bids had been received - one from Swiss Timing and other from MSL Spain, and the same were opened on November 4, 2009 but Kalmadi and Verma had announced in a meeting on October 12, 2009 itself that the contract would be given to Swiss Timing.

He had also said Kalmadi had made up his mind in advance to award the contract to the Swiss firm.

Kalmadi's counsel, however, had argued that the facts given in the CBI's charge sheet were contrary to the documents which the agency had filed in the court.

Kalmadi had told the court that he was only doing the work assigned to him as the OC chairman and nothing wrong was done by him in the entire process.

The counsel appearing for other accused had also opposed the allegations levelled against them by the CBI.

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Detecting Rabid Bats Before They Bite

A picture is worth a thousand words—or in the case of bats, a rabies diagnosis. A new study reveals that rabid bats have cooler faces compared to uninfected colony-mates. And researchers are hopeful that thermal scans of bat faces could improve rabies surveillance in wild colonies, preventing outbreaks that introduce infections into other animals—including humans.

Bats are a major reservoir for the rabies virus, according to the Centers for Disease Control and Prevention (CDC) in Atlanta. Previous research shows that bats can transmit their strains to other animals, potentially putting people at risk. (Popular Videos: Bats share the screen with creepy co-stars.)

Rabies, typically transmitted in saliva, targets the brain and is almost always fatal in animals and people if left untreated. No current tests detect rabies in live animals—only brain tissue analysis is accurate.

Searching for a way to detect the virus in bats before the animals died, rabies specialist James Ellison and his colleagues at the CDC turned to a captive colony of big brown bats (Eptesicus fuscus). Previous studies had found temperature increases in the noses of rabid raccoons, so the team expected to see similar results with bats.

Researchers established normal temperature ranges for E. fuscus—the bat species most commonly sent for rabies testing—then injected 24 individuals with the virus. The 21-day study monitored facial temperatures with infrared cameras, and 13 of the 21 bats that developed rabies showed temperature drops of more than 4ºC.

"I was surprised to find the bats' faces were cooler because rabies causes inflammation—and that creates heat," said Ellison. "No one has done this before with bats," he added, and so researchers aren't sure what's causing the temperature changes they've discovered in the mammals. (Related: "Bats Have Superfast Muscles—A Mammal First.")

Although thermal scans didn't catch every instance of rabies in the colony, this method may be a way to detect the virus in bats before symptoms appear. The team plans to fine-tune their measurements of facial temperatures, and then Ellison hopes to try surveillance in the field.

This study was published online November 9 in Zoonoses and Public Health.

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Virginia Tech Survivor Fights Back Against Guns

Colin Goddard knows what it's like to be in a classroom when an armed man bursts through the door and starts randomly shooting people. Goddard was a student at Virginia Tech when a gunman shot him and killed 32 people in the deadliest mass shooting in U.S. history.

"It was the most terrifying nine minutes of my life," Goddard told Terry Moran of "Nightline" Wednesday.
"One moment you're conjugating French verbs, the next you're shot."

Four of Seung-Hui Cho's bullets hit Goddard April 16, 2007. Three of the bullets are still in him and serve as a constant reminder in his work with the Brady Campaign to Prevent Gun Violence.

Goddard does more than just lobby and appear in public-service announcements. He says he goes undercover to show how easy it is to buy guns without any background check. It's the subject of his documentary called "Living for 32," after the 32 people who died at Virginia Tech in Blacksburg.

"There is not one thing that will stop all shootings," Goddard said. "
There's not one policy that will save us all, but a background check is something that will make it more difficult for dangerous people to get their hands on a gun."

School Shooting Survivor Documents Gun Law Fight Watch Video

Virginia Tech Documentary Debuts at Sundance Watch Video

In "Living for 32," Goddard says he was able to buy, for example, an Egyptian Maadi AK-47, a TEC-9 and a MAC-11 machine pistol at gun shows across the United States.

"I bought the same gun that was used to shoot me," he said. "I bought it all, all without a background check and it was all legal. My question is, 'Why is that legal?'"

Only licensed dealers are required by law to perform background checks on the people to whom they sell guns while private sellers can make gun-show sales with no background checks.

This is known as the "gun-show loophole" and Goddard has made it his mission to close it.

In one instance, Goddard was able to buy the Maadi Egyptian for $660 and was told by the dealer "there's no tax and no paperwork."

The dealer requested to see Goddard's Ohio driver's license. When Goddard couldn't provide it, he was still able to purchase the gun by providing an Ohio address instead.

"I didn't think I was going to be able to do it at first," he said. "And then once I did it once, then twice, then three times. I was like, 'Wow, this is really easy.'

"Toward the end I wasn't even thinking about it. I tried to do it as quickly as I could, say as few words as I could."

Polls show that a majority of Americans favor closing the loophole.

Goddard says closing the loophole won't end all gun violence, but that the government can do better.

The Brady Campaign recently launched a YouTube series, "We Are Better than This," in the wake of last week's shooting at Sandy Hook Elementary School in Newtown, Conn. The videos feature celebrities and, perhaps more significantly, families of mass-shooting victims.

In the first three videos, Goddard appears, as do Lonnie and Sandy Phillips, whose daughter Jessica Redfield Ghawi, died in the Aurora, Colo., mass shooting in July.

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EPA administrator eyes ivory tower

(Kevin Wolf - AP)
We’ve known that Environmental Protection Agency Administrator Lisa Jackson
has been planning her exit from the Cabinet, and now we hear she’s exploring that well-worn path from government officialdom to academia.

Jackson is talking to some university officials, we’re told, and her name is among those being floated as possible candidates for the presidency of Princeton, the institution where she got a graduate engineering degree.

Princeton University President Shirley Tilghman (the school’s first female chief) plans to step down at the end of this academic year; a search committee is still in the midst of its work and is expected to make a recommendation to the university’s trustees this spring, the Princetonian reports.

We hear the head-hunting panel is still in the the “building-a-big-list phase,” so Jackson’s likely in illustrious — and copious — company. (Hey, at least one candidate she won’t have to beat out for the job is former CIA director David Petraeus, who was in the running before his sex scandal.)

An EPA spokeswoman, unsurprisingly, had no comment.

And the ivory tower may not be Jackson’s final destination in her post-Cabinet career — it’s also thought that she has a bright future in New Jersey politics. She’s been mentioned as a possible candidate to run for the seat now held by Sen. Frank Lautenberg (D-N.J.), if he were to retire. One likely successor at the helm of EPA is Bob Perciasepe, the agency’s current deputy administrator, who headed EPA’s air and radiation office under President Bill Clinton.

And speaking of possible Cabinet moves: Everyone in enviroland believes Interior Secretary Ken Salazar is leaving. The question is when.

It’s not that they don’t like Salazar — they do.It’s that they fear the dreaded lame duck is going to quack in the not too distant future, and if the enviros are going to get new legislation and regulations approved, it would be best to start now rather than, say, a year from now with a new secretary.

The front-runners for the job still appear to be Washington Gov. Christine Gregoire (D) and retiring Rep. Norm Dicks (D-Wash.), who says he doesn’t want it (but if he’s offered, it might be tough to refuse).

Meanwhile, Deputy Energy Eecretary David Hayes, though mentioned as possibly moving up (and he’s always mentioned as a possible candidate — he’s “the Susan Lucci of the Cabinet,” according to one observer), is said to be on the short list to replace White House Council on Environmental Quality chair Nancy Sutley, who’s getting ready to decamp.

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S. Korea's Park to win presidential vote: TV

 

SEOUL: South Korea has elected its first woman president, TV channels said Wednesday, predicting a clear victory for conservative Park Geun-Hye, daughter of the country's former dictator.

The KBS, SBS and MBC national broadcasters all declared Park "certain" to secure victory over her liberal rival Moon Jae-In with nearly 40 per cent of the nationwide vote counted.

- AFP/ck

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Charges framed against Malkhan Singh Bishnoi in Bhanwari murder case

JODHPUR: A local court, hearing the Bhanwari Devi murder case, today finally framed charges against one of the key accused Malkhan Singh Bishnoi.

Bishnoi, who has not been appearing in the ACJM (SC/ST Cases) court on health grounds, was brought from Ajmer Central Jail this morning in an ambulance to the court.

"He has been charged with murder (302), Criminal Conspiracy (120- B), abduction with an intent of murder (364) and causing disappearance of evidence of offence (201) of IPC besides sections of SC/ST Act," Senior Special Counsel for CBI, Ashok Joshi said.

It may be recalled that the ACJM (SC/ST Cases) Court had framed the charges against all the accused on October 4, but both Bishnoi and Mahipal Maderna were not present in the court on that day on grounds of ill-health and mother's death respectively.

However, Maderna had appeared in the court in its next hearing on October 15 to hear the charges.

36-year-old Bhanwari, who was an auxiliary nurse, had gone missing from Jodhpur's Bilara area on September 1.

During the CBI probe, it was found that she was allegedly abducted and killed and her body burnt at Jaloda. Her remains and belongings were later dumped in the Rajiv Gandhi Lift Canal, which were recovered by the CBI.

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