New work shows how grass could have developed its distinctive sheath
Picture a clump of grass—a spray of flat green blades that converge into sturdy tubes near the ground. These tubes are formed by the curled lower portion of the grass leaf, called the sheath, which represents something of an evolutionary triumph. It allows grass to grow from the base by protecting new growth and holding mature blades upright so they can compete for sunlight.
Richardson and her colleagues started by taking 3-D images of corn seedlings as they matured, then re-creating the plant’s development using a computer model. The researchers honed their model further by comparing it with experimental observations, such as where certain genes activate in plants and how genetic mutations affect leaf shape. Then they turned to the sheath.
Indonesia Berita Terbaru, Indonesia Berita utama
Similar News:Anda juga dapat membaca berita serupa dengan ini yang kami kumpulkan dari sumber berita lain.
“Separating”“I know if I sit here long enough he will say the thing he forgets he always says: You’re a planet. I never want you to leave. I know I am not the only woman he keeps wrapped in the same story.” A poem by BambrickTaneum.
Baca lebih lajut »
'I am a white western woman—I converted from Christianity to Islam'I met a man from Brahmin family of Hindus. He was also interested in searching for answers outside of his cultural upbringing. In 2014 I discovered he had already converted to Islam. A year later—in 2015—I finally felt ready to take my declaration of faith and to marry him.
Baca lebih lajut »
Simon Cowell on Wedding With Lauren Silverman: 'I Am Planning It All'Why Simon Cowell is taking the lead on planning his wedding with Lauren Silverman.
Baca lebih lajut »
Jimmy Malone to take over Geraldo’s time slot on WTAMWTAM 1100 has hired a familiar voice to take over the morning time slot recently vacated by Geraldo Rivera.
Baca lebih lajut »
Simon Cowell explains why he’s planning ‘all’ of his wedding to Lauren Silverman“I am planning it all, otherwise I know what will happen — there will be 600 people and it’ll get out of control,” the former “American Idol” judge told The Sun.
Baca lebih lajut »
Moral victory: Tiger Woods thankful to finish Masters, commits to British Open“I keep saying it, but I am (thankful),” Woods told reporters. “I really am. I truly am. Just to get to this point.”
Baca lebih lajut »