Having explained existing differences in imderstanding the term of "stress", a brief OverView of historical development of studies on relationships between the minerál nutrition and photosynthesis is given. Effects of minerál nutrients on photosynthesis are illustrated mainly with results obtained firom nitrogen-deficient plants. Changes in photosynthesis brought about by phosphorus deficiency háve also been described in detail. Recent papers on the effects of other minerál nutrients háve been included too. It has been emphasized that (7) minerál nutrients affect the photosynthesis at all levels of plant structure, (2) the photosynthesis has considerable influence on minerál nutrients uptake, distribution and utilization, (3) the photosynthesis should always be considered as only one factor among many others that are modifíed by changes of the minerál nutrition.