TABLE 1.

Changes in pathogen titers in citrus veins following HIF treatment.

Sample number	Before processing		After processing 20 times		The pathogen titer decreased (%)	After processing 25 times		The pathogen titer decreased (%)
	CT value ± SD	Average copy number/vein tissue*	CT value ± SD	Average copy number/vein tissue		CT value ± SD	Average copy number/vein tissue
HIF treatment
1	25.19 ± 0.03	7234.99	27.03 ± 0.06	1963.38	The pathogen titer decreased 52.61%	29.00 ± 0.03	485.91	The pathogen titer decreased 61.85%
2	25.07 ± 0.04	7877.34	29.03 ± 0.04	475.68		28.34 ± 0.04	775.77
3	26.20 ± 003	3536.03	26.30 ± 0.03	3294.06		27.04 ± 0.03	1949.52
4	26.05 ± 0.21	4149.78	26.69 ± 0.01	2498.46		27.60 ± 0.03	1310.79
5	25.96 ± 0.01	4899.19	25.92 ± 0.04	4312.33		25.91 ± 0.04	4343.01
6	25.74 ± 0.02	3932.72	26.72 ± 0.04	2445.89		26.34 ± 0.03	3201.97
	Average	5271.68 ± 1693.57a		2498.30 ± 1399.16b			2011.16 ± 1511.21b
Control
CK1	24.93 ± 0.01	8699.17	26.73 ± 0.02	2428.62	The pathogen titer increased 9.03%	24.88 ± 0.04	9013.01	The pathogen titer decreased 18.69%
CK2	24.66 ± 0.03	10534.06	26.32 ± 0.00	3247.69		25.02 ± 0.01	8161.53
CK3	28.46 ± 0.01	712.51	26.15 ± 0.05	3663.60		25.69 ± 0.01	5075.94
CK4	25.10 ± 0.01	7711.60	25.08 ± 0.00	7821.70		25.82 ± 0.01	4629.10
CK5	25.54 ± 0.03	5645.38	24.22 ± 0.03	14389.54		26.43 ± 0.01	3004.08
CK6	25.63 ± 0.02	5296.48	24.66 ± 0.03	10534.06		27.41 ± 0.02	1499.77
	Average	6433.19a		7014.20a			5230.57a

*According to the standard curve Y = −3.2484X + 37.727, CT values were converted to Copy number/Leaf vein tissue. The “different letters” provided in this table denotes the differences between groups reached a significant level (P < 0.05).