Influence of Drought Stress and Rehydration on Moisture and Photosynthetic Physiological Changes in Three Epilithic Moss Species in Areas of Karst Rocky Desertification

Table 2

The effect of drought stress and the replenishment on photosynthetic physiology indexes in three epilithic mosses. Erythrodontium julaceum (Schwaegr.) Par. with permission from [24]. Copyright 2016 open-access from Bangladesh botanical society.

Species	Treatment	Chlorophyll a		Chlorophyll b		Transpiration (mmol H2O·m^−2·s^−1)		Net photosynthetic rate (μmol CO2·m^−2·s^−1)
		Stress	Rewatering	Stress	Rewatering	Stress	Rewatering	Stress	Rewatering
Bryum argenteum Hedw.	CK	0.61 ± 0.12	—	0.28 ± 0.04	—	1.07 ± 0.21	—	15.19 ± 1.02	—
	6	0.59 ± 0.09	0.57 ± 0.08	0.19 ± 0.02	0.24 ± 0.05	0.98 ± 0.09	0.65 ± 0.12	12.44 ± 0.84	8.76 ± 1.33
	12	0.58 ± 0.11	0.67 ± 0.10	0.21 ± 0.03	0.24 ± 0.05	0.97 ± 0.12	0.69 ± 0.10	10.65 ± 0.69	8.78 ± 1.24
	24	0.43± 0.06	0.69 ± 0.14	0.20 ± 0.02	0.28 ± 0.07	0.99 ± 0.20	0.58 ± 0.08	7.51 ± 0.77	8.09 ± 1.08
	48	0.72 ± 0.12	0.58 ± 0.07	0.34 ± 0.05	0.53 ± 0.14	0.88 ± 0.16	0.58 ± 0.10	6.26 ± 0.95	8.74 ± 1.21
	72	0.64 ± 0.18	0.68 ± 0.08	0.27 ± 0.04	0.32 ± 0.12	0.75 ± 0.14	0.62 ± 0.13	3.12 ± 0.86	8.10 ± 1.11
Barbula unguiculata Hedw.	CK	0.65 ± 0.22	—	0.33 ± 0.12	—	1.01 ± 0.12	—	30.93 ± 1.78	—
	6	0.52 ± 0.19	0.65 ± 0.26	0.25 ± 0.09	0.29 ± 0.05	0.76 ± 0.10	0.92 ± 0.14	18.04 ± 1.86	11.22 ± 1.74
	12	0.52 ± 0.17	0.69 ± 0.27	0.26 ± 0.07	0.26 ± 0.04	0.72 ± 0.11	0.74 ± 0.10	15.01 ± 1.75	10.03 ± 1.63
	24	0.54 ± 0.15	0.71 ± 0.25	0.22 ± 0.06	0.24 ± 0.06	0.72 ± 0.14	0.78 ± 0.09	14.35 ± 1.38	9.96 ± 1.02
	48	0.89 ± 0.24	0.67 ± 0.20	0.33 ± 0.11	0.38 ± 0.21	0.67 ± 0.09	0.77 ± 0.08	10.01 ± 1.21	9.99 ± 1.13
	72	0.92 ± 0.36	0.68 ± 0.21	0.35 ± 0.10	0.35 ± 0.19	0.64 ± 0.08	0.70 ± 0.10	8.73 ± 1.08	9.97 ± 1.11
Erythrodontium julaceum (Schwaegr.) Par.	CK	0.48 ± 015	—	0.31 ± 0.19	—	1.03 ± 0.10	—	27.74 ± 1.48	—
	6	0.51 ± 0.22	0.61 ± 0.22	0.24 ± 0.12	0.42 ± 0.21	1.43 ± 0.21	0.99 ± 0.13	16.17 ± 1.55	18.06 ± 2.05
	12	0.39 ± 0.18	0.53 ± 0.19	0.19 ± 0.09	0.17 ± 0.08	1.03 ± 0.18	0.74 ± 0.15	12.48 ± 1.19	16.28 ± 1.56
	24	0.79 ± 0.31	0.87 ± 0.26	0.35 ± 0.21	0.47 ± 0.24	0.77 ± 1.12	0.79 ± 0.12	8.73 ± 1.21	11.82 ± 1.43
	48	0.65 ± 0.24	0.73 ± 0.25	0.37 ± 0.16	0.47 ± 0.26	0.69 ± 0.13	0.80 ± 0.17	2.5 ± 0.43	14.35 ± 1.11
	72	0.85 ± 0.34	0.90 ± 0.29	0.38 ± 0.14	0.41 ± 0.18	0.67 ± 0.11	0.74 ± 0.14	0.62 ± 0.18	9.35 ± 1.13