High Temperature-Induced Expression of Rice α-Amylases in Developing Endosperm Produces Chalky Grains

• Published in: Frontiers in plant science Vol. 8; p. 2089
• Main Authors: Nakata, Masaru, Fukamatsu, Yosuke, Miyashita, Tomomi, Hakata, Makoto, Kimura, Rieko, Nakata, Yuriko, Kuroda, Masaharu, Yamaguchi, Takeshi, Yamakawa, Hiromoto
• Format: Journal Article
• Language: English
• Published: Switzerland Frontiers Media S.A 06.12.2017
• Subjects: chalky grain; developing seed; endosperm; grain quality; high temperature; Plant Science; α-amylase; chalky grain; grain quality; rice (Oryza sativa); α-amylase; developing seed; starch; endosperm; high temperature

Global warming impairs grain filling in rice and reduces starch accumulation in the endosperm, leading to chalky-appearing grains, which damages their market value. We found previously that high temperature-induced expression of starch-lytic α-amylases during ripening is crucial for grain chalkiness...