The plant biochemical process (ie respiration, also dissimilation), which provides the necessary energy for growth, as in the case of Rebstock, This can also be used as a counterpart to photosynthesis be referred to because inversely to this (as in humans and animals) oxygen consumed and carbon dioxide released, as well as no sunlight is needed directly. Indirectly, however, the process is also dependent on the sunlight, because he needs indeed some substances generated in the photosynthesis for respiration or consumed. These are in contrast to photosynthesis at night, among others amino acids. acids. Strength and sugar split up for energy production. Among others, the malic acid decomposed. High temperature can heat stress causing them to increase their respiration rate by a whopping dozen with a 10 ° C increase. This results in the phenomenon of low-acid wines in very hot winegrowing areas.