Platonova T A, Evsiunina A S, Korableva N P
Prikl Biokhim Mikrobiol. 2010 May-Jun;46(3):385-92.
A comparative ultramorphometric study of the effect of jasmonic acid (JA) on the plastid apparatus in apical cells of potato tubers varying in physiological state was performed. When tubers were treated with JA at forced rest, the plastid apparatus of apical cells decreased in area and plastid proliferation was suppressed. When treatment was performed during growth, the area of the plastid apparatus remained unchanged, division was suppressed, and plastid budding was stimulated in apical cells. There was also a common response to JA that was independent of the physiological state of tubers. JA stimulated the development of the internal membrane system in plastids, reduced the amount of protein inclusions, and increased the portion of plastids having cisterns of the granular endoplasmic reticulum (GER) around their envelopes. The ultrastructural changes in plastids made it possible to assume that JA increases the biosynthetic activity of the plastid apparatus in apical meristem cells of potato tubers.
对处于不同生理状态的马铃薯块茎顶端细胞中茉莉酸（JA）对质体结构的影响进行了比较超微形态计量学研究。当块茎在强制休眠期用JA处理时，顶端细胞质体结构的面积减小，质体增殖受到抑制。当在生长期间进行处理时，质体结构的面积保持不变，分裂受到抑制，并且顶端细胞中的质体出芽受到刺激。对JA还存在一种与块茎生理状态无关的共同反应。JA刺激了质体内内膜系统的发育，减少了蛋白质内含物的数量，并增加了其包膜周围具有颗粒内质网（GER）池的质体比例。质体的超微结构变化使人们可以推测，JA增加了马铃薯块茎顶端分生组织细胞质体结构的生物合成活性。
