Os08g0523000
Contents
Annotated Information
gene overview
name and function
this gene is OsDIL and the rice OsDIL gene plays a role in drought tolerance at vegetative and reproductive stages.
evolution
OsDIL is a stress-responsive gene.OsDIL enhances drought tolerance at the vegetative stage.Overexpression of OsDIL in rice improves drought-tolerance at the reproductive stage.Expression of stress-responsive and flower developmental genes in transgenic plants.
Drought treatment at the
vegetative stage. a The
phenotype of transgenic rice
under drought. Bar = 10 cm.
b The survival rate (the numbers
of survival plants after
rewatering to these of total
plants) of transgenic rice and
their leaves under drought.
Drought treatment at the
reproductive stage. a The
phenotype of transgenic rice
under drought. b The rolling
leaf rate (the number of rolling
leaves to that of total leaves) of
rice under drought
Pollen fertility of rice
plants under drought. a The
analysis of pollen fertility using
I2-KI staining. b The percentage
of pollen fertility under drought
discussion
Plants are sessile and have evolved an array of distinct mechanisms to respond and adapt to abiotic stresses. Increasingly frequent occurrences of drought are the major challenges for rice production (Zhang 2007). We showed here that decreased or elevated expression of OsDIL in rice reduced or enhanced, respectively, the tolerance to drought at the vegetative and reproductive stages.
summary
In summary, OsDIL is a positive regulator for improving drought tolerance. OsDIL might transfer lipid molecules to synthesize cuticle in leaves to reduce water loss under drought and to facilitate sufficient pollen exine synthesis for microspores against drought. OsDIL could improve the plant cellular environment and promote ROS elimination to protect tapetal cells and other tissues.
