Rice Lectin Protein r40c1 Interacts With Magnaporthe oryzae Sho1 Protein to Regulate Leaf Blast Resistance.

Lectins are known to play vital roles in biotic and abiotic stress tolerance in plants. Earlier, it was demonstrated that Osr40c1, a member of OsR40 lectin family, imparts osmotic stress tolerance in rice. However, how it renders resistance against pathogen attack remained unexplored.

Osr40g3 imparts salt tolerance by regulating GF14e-mediated gibberellin metabolism to activate EG45 in rice.

Under changing environmental conditions, salt stress is a serious threat to agriculture. The R40 family lectins are known to be associated with osmotic stress response, although their mechanism of action remains unclear. Here, we report that Osr40g3, upregulated by salt, improves salt tolerance but causes pollen sterility and poor seed development in rice when constitutively overexpressed.