Determination of Phototropism and Polarotropism in Fern Protonemal Cells
Determination of Phototropism and Polarotropism in Fern Protonemal Cells
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蕨类植物原细胞向光性和极向性的测定
DOI：
10.1007/978-1-4939-9015-3_3
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发表时间：
2019
影响因子：
--
通讯作者：
Wada Masamitsu
中科院分区：
文献类型：
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作者：
Yamaguchi;Y.;Suzuki;R.;Cabrera J.;Nakagami;S.;Sagara;T.;Ejima C.;Sano;R.;Aoki;Y.;Olmo;R.;Kurata;T.;Obayashi T.;Demura;T.;Ishida;T.;Escobar;C.;and Sawa;S;澤 進一郎;Wada Masamitsu
蕨类植物的原质细胞在其顶端生长为长的、不分裂的丝状细胞，朝向红光（或弱白光），如果光方向改变（即向光性），它们的生长方向也会改变。当在琼脂表面和盖玻片之间生长的原丝体通过原丝侧的玻璃用偏振红光照射时，它们在偏振光的振动平面的方向和平行于细胞顶端部分的质膜的光感受器的跃迁力矩相等的点开始生长（即极向性）。本文描述了如何诱导和观察这种质子向光性和极向性的方法。
Fern protonemal cells grow at their apices as long, undivided filamentous cells toward red (or weak white) light and change their growth direction if the light direction is changed (i.e., phototropism). When protonemata growing between an agar surface and cover glass are irradiated with polarized red light through the glass on the protonemal side, they start growing at the point where the direction of the vibration plane of polarized light and the transition moment of the photoreceptor, which is parallel to the plasma membrane of the cell’s apical part, are equal (i.e., polarotropism). Herein, the methods on how to induce and observe this protonemal phototropism and polarotropism are described.