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← HistoryWhich outcome occurred when the chinampa system experienced increased salinity in pre-colonial Mesoamerica maize cultivation?
A)Nitrogen fixation rate elevation
B)Lysine amino acid production decrease✓
C)Anthocyanin pigment concentration increase
D)Cellulose structural integrity elevation
💡 Explanation
When chinampas faced increased salinity, osmotic stress occurred because salt drew water from maize plant cells; this disrupts ribosome function interfering with protein synthesis and thus especially reduces formation of lysine-rich storage proteins. Therefore lysine production decreased. Rather than nitrogen fixation, pigmentation or cellulose which rely on different mechanisms.
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