Exogenous GABA helps muskmelon plants absorb and use nitrogen better when stressed by high calcium nitrate levels. This study looked at how GABA affects nitrogen assimilation in muskmelons grown in salty conditions. The researchers found that GABA improved the plant's ability to take up and use nitrogen, leading to healthier growth and photosynthesis. GABA also helped regulate amino acid levels and protein production in the plants, reducing the harmful effects of high calcium nitrate stress.