Nutritional disorders in rice due to infestation by Heterodera oryzicola and Meloidogyne graminicola.

TLDR: Infestation of rice by Heterodera o yzicola and Mebidogyne grantinicola caused reduction in nitrogen, phosphorus, iron, and reducing sugars in shoots and roots and total sugars, protein, IAA, cytokinin and thiamine were reduced and phenols were reduced with root-hot nematode infested plants.

Abstract: SUMMARY Infestation of rice by Heterodera o yzicola and Mebidogyne grantinicola caused reduction in nitrogen, phosphorus, iron, and reducing sugars in shoots and roots. Total sugars, protein, IAA, cytokinin and thiamine were reduced in the cyst nematode infested plants and phenols were reduced with root-hot nematode infested plants. Phenols decreased in shoots and increased in roots due to cyst nematode, while the rootknot nematode caused similar changes in potassium, manganese and magnesium. There was an increase in calcium, sodium, soluble amino-acids, ABA and starch in both shoots and roots of the cyst nematode infested plants and of total sugars, protein, DNA and RNA with the root-knot nematode infested plants. Infestation by both the nematodes caused nutritional disorders limiting the uptake of nitrogen and phosphorus and chlorosis of leaves.