"be of significant importance" is correct and usable in written English.
You can use this phrase when you want to emphasize that something is particularly important. For example, "Accurate record keeping is of significant importance for any business."
High dimension edge detection can be of significant importance, however.
And this will be of significant importance to the low-carbon economy.
Nevertheless, the later one can be of significant importance for airfoil design.
Heterogeneity of agricultural landscapes is supposed to be of significant importance for species diversity in agroecosystems.
Such coupling effects can be of significant importance even for hydrocarbon mixtures; this conclusion is not intuitively obvious.
These results could be of significant importance in the evaluation of laboratory data for the organic synthesis of pharmaceuticals.
While the former affects little the dynamics of most engineering structures, the latter is shown to be of significant importance in structural dynamics.
The nature and distribution of the potential CCN is shown to be of significant importance to determining the cloud particle distribution.
Therefore, studies on nano-hydroxyapatite [Ca10(OH)2(PO4)6] as a potential adsorbent for disinfection of uranium-contaminated underground waters can be of significant importance for people.
The changes of the solar radiation input associated with helio/geophysical phenomena may be of significant importance for the physical mechanism of the solar-atmospheric links.
Both the completeness of elimination and insight into the molecular dynamics can be of significant importance toward the performance of photovoltaic devices.
