GLU-Zn corrects zinc (Zn) deficiencies. Zinc is a critical micronutrient involved in many metabolic activities and structures in parts of the plant. Zinc is a component of enzymes and proteins that intervenes in various metabolic processes. It plays an important role in the metabolism of natural hormones that regulate growth (such as auxins and gibber lines) and as an inductor, or example, of the auxin activity (Hossain et al.1997,1998). In addition, it stimulates the production of auxin by incrementing the level of tryptophan, an essential precursor of the doleacetic acid.
It is essential in maintaining the levels of gibberellin in the plant.
Zinc is the key to the synthesis of chlorophyll; hence, its activity takes place in the photosynthesis process. It is also very important in regulating he estomatic opening function.
Zinc intervenes in the metabolism of nitrogen and in generating useful pigments and ascorbic acid.
It is also a component of the RNA POLYMERASE enzyme that catalyzes the synthesis of RNA, key to generation of proteins, as well as to the tability of ribosomes.
Zinc plays an essential role in the plan’s defense mechanisms, such as defense against UV radiation.
Zinc also affects defense against pathogens such as Fusarium solani (on the tomato), Rhizoctonia solani, Macrophomina phaseolina, etc.
Zinc’s influence on issues such as citrus blight (citrus withering) is also important. In crops, Zinc improves blossoming and the generation of fruits and seeds, and is a key factor in the generation of pollen.
Zinc deficiency is fairly common in many crops and in many different types of soil. It affects the crops of essential grains such as rice, wheat and corn, as well as different crops of fruits, vegetables and other types of crops.