Agriculture Reference
In-Depth Information
Polysilicic acids are used for the synthesis of organic molecules (Banerjee et al.,
2001).
As influenced by any stress, nuclear control of the cell is stimulated for identification of a
type of stress (Figure 3). After this identification, the signal system of the plant cell initiates
metabolism and protein synthesis for the formation of specific and non-specific stress-
protectors. Several points in this process are critical for realization of the plant defense. First,
there is time period required for stress identification. Second, it is time and energy for the
synthesis of anti-stress proteins and anti-stress metabolites. The time and energy deficiency
are the main factors of negative influence of stresses on plant productivity and ability to
survive.
Possibility to use polysilicic acid for direct catalytic synthesis of organic molecules in the
plant cell can strengthen this process by the following. The stress initiates nuclear control for
identification of a stress and asking for additional transport of Si into problematic cell. After
identification, the synthesis of specific and non-specific stress-protectors is realized by well-
known mechanisms and by additional low-energy required (catalytic) synthesis of these
substances on polysilicic-acid matrix (Figure 4). With the changes occuring in the global
environment, the role of Si in plant protection against stresses will become more and more
important for sustainable and ecologically safe crop production.
Figure 4. Schematic of stress-protection system of plant cell.
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