Home / Fun Facts / A promising technique that makes maize more productive even in droughts has now been unpicked and looks set to do the same for a range of other crops, including wheat and rice. — ScienceDaily

A promising technique that makes maize more productive even in droughts has now been unpicked and looks set to do the same for a range of other crops, including wheat and rice. — ScienceDaily

Three years in the past, biotechnologists demonstrated in area trials that they may improve the productiveness of maize by introducing a rice gene into the plant that regulated the accumulation of sucrose in kernels and led to more kernels per maize plant.

They knew that the rice gene affected the efficiency of a pure chemical in maize, trehalose 6-phosphate (T6P), which influences the distribution of sucrose in the plant. But they had been eager to uncover more intimate particulars of the relationships governing the elevated productiveness.

“Now we know far more about how this yield effect has been achieved,” says Matthew Paul, who led the anglo-american group from Rothamsted Research and Syngenta, a biotechnology firm that additionally funded the work. The group’s findings are revealed right now in Plant Physiology.

The transgenic maize depressed ranges of T6P in the phloem, a main element of the plant’s transportation community, permitting more sucrose to transfer to growing kernels and, serendipitously, growing charges of photosynthesis, thereby producing even more sucrose for more kernels.

The group additionally selected to goal the phloem inside the plant’s reproductive constructions. “These structures are particularly sensitive to drought — female kernels will abort,” says Paul, a plant biochemist at Rothamsted. “Keeping sucrose flowing within the structures prevents this abortion.”

He provides: “This is a first-in-its-kind study that shows the technology operating effectively both in the field and in the laboratory. We also think that this could be transferred to other cereals, such as wheat and rice.”

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Materials supplied by Rothamsted Research. Note: Content could also be edited for model and size.

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