Yamashita Felipe, Rodrigues Angélica Lino, Rodrigues Tatiane Maria, Palermo Fernanda Helena, Baluška František, Almeida Luiz Fernando Rolim de
Section of Plant Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, Brazil.
Institute of Cellular and Molecular Botany, University of Bonn, 53115 Bonn, Germany.
Plants (Basel). 2021 Mar 4;10(3):485. doi: 10.3390/plants10030485.
Despite the fact that they are sessile organisms, plants actively move their organs and also use these movements to manipulate the surrounding biotic and abiotic environments. Plants maintain communication with neighboring plants, herbivores, and predators through the emission of diverse chemical compounds by their shoots and roots. These infochemicals modify the environment occupied by plants. Moreover, some infochemicals may induce morphophysiological changes of neighboring plants. We have used methyl-jasmonate (MeJa), a plant natural infochemical, to trigger communication between emitters and receivers plants. The split roots of two plants were allocated to three different pots, with the middle pot containing the roots of both plants. We scored low stomatal conductance () and low CO net assimilation () using the plants that had contact with the infochemical for the first time. During the second contact, these parameters showed no significant differences, indicating a memory effect. We also observed that the plants that had direct leaf contact with MeJa transmitted sensory information through their roots to neighboring plants. This resulted in higher maximum fluorescence () and structural changes in root anatomy. In conclusion, MeJa emerges as possible trigger for communication between neighboring sorghum plants, in response to the environmental challenges.
尽管植物是固着生物，但它们会主动移动其器官，还利用这些运动来操纵周围的生物和非生物环境。植物通过其地上部分和根部释放各种化合物，与邻近植物、食草动物和捕食者保持交流。这些信息化合物改变了植物所处的环境。此外，一些信息化合物可能会诱导邻近植物发生形态生理变化。我们使用茉莉酸甲酯（MeJa），一种植物天然信息化合物，来触发发送者植物与接收者植物之间的交流。将两株植物的分根分别置于三个不同的花盆中，中间花盆中放置两株植物的根。我们对首次接触信息化合物的植物测定了低气孔导度（）和低净二氧化碳同化率（）。在第二次接触时，这些参数没有显著差异，表明存在记忆效应。我们还观察到，与MeJa有直接叶片接触的植物通过其根部将感官信息传递给邻近植物。这导致了更高的最大荧光（）和根部解剖结构的变化。总之，响应环境挑战，MeJa可能成为邻近高粱植物之间交流的触发因素。
