The phrase "a sole source for" is correct and usable in written English.
It can be used when referring to a unique provider or supplier of a particular product, service, or information.
Example: "The company has established itself as a sole source for high-quality organic ingredients in the market."
Alternatives: "exclusive provider of" or "single supplier for".
NTA was not utilized as a sole source for carbon and nitrogen.
Customers relying on a sole source for 3D printed parts may have limited options in obtaining the best deals.
The use of natal inference as a tool for management agencies may work well at the regional level, given sufficient input data; however, we clearly observed limits on the spatial scale of inference and consequently on the effectiveness of genotypes as a sole source for natal inference.
Moreover, we suggest that dietary carotenoids as a sole source for vitamin A can compensate for vitamin A deficiency.
For each node corresponding to one of our models, we first compiled published experimental data recording whether each nutrient could serve as a sole source for growth in all reported wild-type descendants of the node.
Compared with the procambium-derivation of primary laticifers, the secondary laticifers, mainly located in the soft inner bark of the rubber tree trunk, are periodically differentiated from the vascular cambium and serve as a sole source for the commercial latex [ 56].
Fish were grown in aquaria and fed a sole source of protein for 56 days and analyzed for δ13C and δ15N ratios in whole fish, muscle, and liver tissues.
The mycelia of R. stolonifer were spread on colloidal chitin agar medium containing colloidal chitin as a sole source of carbon for the production of chitinase.
We have tested two lignocellulosic biomass residues viz., rice straw (RS) and sugarcane bagasse (BG), both separately and in combinations, and crystalline cellulose as a sole source of carbon for cellulase production.
Solid-state cultivation was carried out separately in 250 mL Erlenmeyer flasks containing RS- and BG-biomass residues and in combinations as a sole source of carbon for microbial growth.
Solid state cultivation was carried out separately in 500 mL Erlenmeyer flasks containing 5 g (w/w) of rice straw, sugarcane bagasse and mixed (RSBG) growth substrate in the ratio of 75:250 50:50 and 25:75, respectively, as a sole source of carbon for microbial growth as reported recently by us (Kumar and Parikh 2015).
