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GLOBAL: Climate-proof food plants are
coming
A scientist at the Norwich-based John
Innes Centre claims to have created a food plant that defies
all doomsday scenarios in which extreme temperatures take us
all to oblivion, and instead keeps growing and bearing fruit
regardless of climate conditions. He says this can become a
reality within the next 10 to 15 years as they have isolated
a "thermometer" gene that helps plants sense temperature, and
this could provide a shortcut to creating plants that fruit
in any temperature.
Scientists across the world have been
working to create food crops tolerant to extreme temperatures,
some of which are already being grown in Asia. They are
evolved from a long of process of subjecting grain plants to
stresses such as drought conditions, and then isolating genes
from those that survived to create new variants. This
discovery could potentially push agricultural microbiology
forward by leaps and bounds in much the same way that early
medicine, which depended on empirical methods to treat
diseases, was revolutionized by an increased understanding of
bacteria.
The impact of extreme temperatures
and water stress on food production, brought on by climate
change, could be felt in the next 10 years and food production
in Africa could be
severely compromised by 2020. This discovery would cut
down the time it takes to find varieties that are more
tolerant to extreme temperatures, and will lead to precision
breeding as one won't have to tamper with all the genes.
Water
proof rice set to make waves in South Asia
Waterproof versions of popular varieties of rice, which can
withstand two weeks of complete submergence, have passed tests
in farmers’ fields. Several of these varieties are now close
to official release by national and state seed certification
agencies in Bangladesh and India, where farmers suffer major
crop losses because of flooding of up to 4 million tons of
rice per year which is enough to feed 30 million people. The
flood-tolerant versions of the mega-varieties and
high-yielding varieties that are popular with both farmers and
consumers grown over huge areas across Asia are effectively
identical to their susceptible counterparts but recover after
severe flooding to yield well.
The new varieties were made possible following the
identification of a single gene that is responsible for most
of the submergence tolerance. Thirteen years ago, the gene in
a low-yielding traditional Indian rice variety known to
withstand flooding was identified. The researchers isolated
the specific gene—called Sub1A—and demonstrated that
it confers tolerance to normally intolerant rice plants.
Sub1A gene effectively makes the plant dormant during
submergence, allowing it to conserve energy until the
floodwaters recede. Typically, rice plants will extend the
length of their leaves and stem in an attempt to escape
submergence. The Sub1A gene is an evolutionarily new
gene in rice found in only a small proportion of the rice
varieties originating from eastern India and Sri Lanka. The
activation of this gene under submergence counteracts the
escape strategy.

DuPont Proceeds
with Modified Soybean amid court loss
DuPont Co., the world’s second-biggest seed producer, will
continue creating modified soybeans in spite of a court
ruling that this is in violation of a licencing areement with
Monsanto because it expects its view to prevail in other
claims in the case. DuPont plans to begin selling Optimum GAT
soybean seeds that include Monsanto’s Roundup Ready gene as
early as 2013. DuPont, said that such a combination.
Monsanto, the world’s largest seed producer, is also
facing a US Department of Justice probe into competition in
the genetically modified crop industry as the judge upheld
Monsanto’s effort to block the release of Optimum GAT
soybeans. DuPont’s claims that Monsanto is using its dominance
in biotech seeds to stifle competition and that its Roundup
Ready patent is invalid.
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