The yugu velvet felt alcohol": The paint Koizumi research team found a new type of male infertility control mechanism in rice.

The study group of Yu Koizumi, a researcher at the Institute of Plant Studies of the Chinese Academy of Sciences, has discovered a new type of male infertility system in rice and revealed its reproductive regulation mechanism.
's findings were published online February 9 in the journal Nature Letters.
the infertility system is completely different from the light/temperature-sensitive male infertility system found in the past, its fertility is only affected by the environmental humidity during the blooming period, and the relevant regulatory mechanism is widespread in the undergraduate crop, which is of great significance to the hybrid breeding and hybrid advantage utilization of the two-line crop.
researchers have found that the tintoluenzyme in rice can catalyze the production of a two-ring triamcinolone compound, the tingrained felt alcohol.
the pollen grains produced by rice plants that are missing the enzyme, the composition of the pollen package is significantly reduced, and the pollen grains are not effectively protected and the water is lost rapidly.
the mutants exhibit infertility in environments with humidity below 60%, while in environments with humidity above 80%, they are completely fertile. Further studies
showed that the pollen pack of mutants was significantly reduced in the content of palmic acid and linoleic acid compared with normal plants, and was completely lacking steaic acid;
researchers said that the enzyme is widely found in the plant, has been found in corn, wheat and barley flower medicine, and detected the presence of "granud felt alcohol", indicating the presence of similar molecular mechanisms in the plant, for the cultivation of wet-sensitive male infertility materials in the undergraduate crop sage. the fertility of the rice light/temperature-sensitive male infertility system found in the early
needs to strictly control the temperature or light, greatly limiting its application range, and the fertility of the new sterile system is only affected by the environmental humidity of the blooming period, and the hybrids can be formulated in the dry and rainy areas of summer, thus breaking through the geographical limitations of the current advantages of rice hybrids.
it is understood that the pollen grains of higher plants have a hard outer wall of pollen, consisting of an outer layer and an inner layer, and the substance filled between the two layers is called a pollen pack.
pollen packs play an important role in preventing hay grain drying, protecting pollen grains from mechanical damage and pathogen infection, and plants with poor pollen wall development and lack of pollen packs show a significant decrease in fertility.
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