Manganese deficiency symptoms
Pro Research Analysisby 
Searched over 200M research papers
Manganese Deficiency Symptoms
Introduction to Manganese Deficiency
Manganese is an essential nutrient required for various biological functions, including bone formation, metabolism, and enzymatic reactions. Despite its importance, manganese deficiency, though rare, can lead to several health issues in both humans and plants.
Symptoms of Manganese Deficiency in Humans
Growth and Development Issues
Manganese deficiency in humans can result in growth retardation and skeletal abnormalities. These symptoms are particularly pronounced if the deficiency occurs during early development, leading to irreversible conditions such as ataxia and poor bone remodeling 14.
Metabolic and Reproductive Problems
Deficiency in manganese can also cause metabolic disturbances, including changes in circulating HDL cholesterol and glucose levels. Additionally, reproductive failure has been noted as a symptom of manganese deficiency .
Neurological Symptoms
Although manganese deficiency is less common than toxicity, it can still affect neurological functions. Symptoms may include impaired insulin production and alterations in lipoprotein metabolism, which can indirectly affect brain function .
Symptoms of Manganese Deficiency in Plants
Photosynthesis and Growth
In plants, manganese is crucial for photosynthesis, particularly in the oxygen-evolving complex of photosystem II. Deficiency in manganese leads to reduced carbon dioxide assimilation, which manifests as stunted growth, necrotic leaf spots, and reduced resistance to bacterial infections 26.
Specific Plant Diseases
Certain plant diseases are directly linked to manganese deficiency. For example, grey speck disease in oats and chlorosis in spinach are well-documented conditions resulting from insufficient manganese levels in the soil .
Symptoms of Manganese Deficiency in Fungi
Growth and Sporulation
Fungi also require manganese for optimal growth and sporulation. Deficiency in this micronutrient can lead to decreased growth rates and impaired sporulation, as observed in various species of filamentous fungi .
Conclusion
Manganese deficiency, though rare, can have significant impacts on both human health and plant growth. In humans, it can lead to growth retardation, metabolic disturbances, and neurological issues. In plants, it affects photosynthesis and can cause specific diseases. Understanding and addressing manganese deficiency is crucial for maintaining health and productivity in both humans and plants.
Sources and full results
Most relevant research papers on this topic