ABA enhances gametogenesis and increases game tolerance to salinity
Once N depletion was initiated, all cultures continued to grow for 24, After that the growth, based on OD values, of N‐depleted control and mock cells slowed till the end of the experiment, suggesting complete cessation of net cell division (Fig. 6). However, the rate of gamete formation in the ABA-treated C. reinhardtii cultures increased more than 2-fold (OD750 = 0.86) of that in the control cultures (OD750 = 0.39) after 48 h of induction under normal conditions, before they declined after 72 h.
In comparison, the rate of gamete formation was lower in all cultures under salt stress, with 24 h extended survival time in ABA-treated cells (Fig. 7).