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Latest Meristem Stories

2013-02-04 14:49:22

A team of plant geneticists at Cold Spring Harbor Laboratory (CSHL) has successfully demonstrated what it describes as a "simple hypothesis" for making significant increases in yields for the maize plant. Called corn by most people in North America, modern variants of the Zea mays plant are among the indispensable food crops that feed billions of the planet's people. As global population soars beyond 6 billion and heads for an estimated 8 to 9 billion by mid-century, efforts to boost...

New Way In Which Plants Control Flower Production Discovered
2012-11-12 11:22:57

Cold Spring Harbor Laboratory Flowers don't just catch our eyes, they catch those of pollinators like bees as well. They have to, in order to reproduce. Because plants need to maximize the opportunity for pollinators to gain access to their seeds, variations in the timing of flowering can have profound effects on flower, fruit, and seed production, and consequently agricultural yields. We know that the major driving forces of flowering are external factors such as light and temperature....

2011-12-27 08:36:54

Manipulating the clock might provide agricultural benefits, as a slower clock increases branching, thereby increasing flower number and fruit yield The secret to pushing tomato plants to produce more fruit might not lie in an extra dose of Miracle-Gro. Instead, new research from Cold Spring Harbor Laboratory (CSHL) suggests that an increase in fruit yield might be achieved by manipulating a molecular timer or so-called "maturation clock" that determines the number of branches that make...

2011-05-16 17:37:19

Research on controlling the stem cells of plants could eventually lead to learning how to make them produce more fruit, seed and leaves, according to Dr. Xiuren Zhang, Texas AgriLife Research scientist and professor with the Texas A&M University department of biochemistry and biophysics. Results of a nearly three-year project led by an AgriLife Research team headed by Zhang was published in Cell, one of the most cited scientific peer-review journals in the world. "Working with the shoot...

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2010-03-01 07:31:24

Power struggle between genetic master switches decides stem cell fate, growth orientation in plants The first order of business for any fledgling plant embryo is to determine which end grows the shoot and which end puts down roots. Now, researchers at the Salk Institute expose the turf wars between two groups of antagonistic genetic master switches that set up a plant's polar axis with a root on one end and a shoot on the other. "In what is arguably the most important decision for a plant,...

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2009-07-07 14:55:00

Plant roots provide the crops we eat with water, nutrients and anchorage. Understanding how roots grow and how hormones control that growth is crucial to improving crop yields, which will be necessary to address food security and produce better biofuels. Now an international group of scientists, led by the Center for Plant Integrative Biology at The University of Nottingham, has shed light on how a plant hormone is crucial in controlling the growth of plant roots.Plant growth is driven by an...

2009-02-25 11:47:56

Discovery can help researchers develop improved crop plants Plant stem-cells are master cells located at the tip of the stem and are part of a structure called the shoot apical meristem (SAM). Here, the stem cells"”all clumped together"”divide throughout the life of the plant to give rise to other cells, resulting in the formation of above-ground organs such as leaves, flowers, branches and stem.But despite the important role the stem cells play in plant development, their...

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2008-06-26 11:14:16

Walking through a tropical or temperate forest immediately impresses us with the myriad forms and soaring structures of the plant world, but our knowledge of how plants are actually built, cell by cell, is still incomplete. Now, with data emerging from many genome sequencing projects, scientists have begun to unravel the details of plant architecture at the molecular level. This knowledge has implications for crop yield improvement, biofuel production, and materials science. Dr. Sarah Hake...


Word of the Day
barghest
  • A goblin in English folklore, often appearing in the shape of a large dog and believed to portend imminent death or misfortune.
  • A ghost, wraith, hobgoblin, elf, or spirit.
The origin of 'barghest' is not known, but it may be from perhaps burh-ghest, town-ghost, or German Berg-geist (mountain spirit) or Bär-geist (bear-spirit).
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