Institute of General Botany, University of Athens, Panepistimiopolis, 621, Athens, Greece.
Planta. 1979 Sep;146(4):415-7. doi: 10.1007/BF00380854.
Maize caryopses sown in water germinate equally well either in darkness or under any light regime. However, when they are imbibed in mannitol solutions, continuous far-red light proves to be strongly inhibitory on the final germination as compared to darkness. Similar but less pronounced inhibition is also exhibited by continuous red or blue light. Intermittent far-red light can partially substitute for continuous far-red light in inhibiting maize caryopsis germination, and its effect is reversed to the intermittent red light level when red light is given immediately after each far-red illumination. These results are interpreted as a proof of existence and involvement of phytochrome in the germination control of maize caryopses, though its manifestation is realized only under osmotic stress.
播种在水中的玉米颖果，无论在黑暗中还是在任何光照条件下，萌发情况都一样良好。然而，当它们在甘露醇溶液中吸水时，与黑暗相比，连续的远红光对最终萌发有很强的抑制作用。连续的红光或蓝光也表现出类似但不那么明显的抑制作用。间歇的远红光可以部分替代连续的远红光来抑制玉米颖果的萌发，而当远红光照射后立即给予红光时，其效果会反转到间歇红光的水平。这些结果被解释为存在并证实光敏色素参与了玉米颖果萌发的控制，尽管只有在渗透胁迫下才能表现出来。
