Changes in Bemisia tabaci feeding behaviors caused directly and indirectly by cucurbit chlorotic yellows virus

Lu, Shaohua; Chen, Mingshun; Li, Jingjing; Shi, Yan; Gu, Qinsheng; Yan, Fengming

doi:10.1186/s12985-019-1215-8

Virology Journal

Table 2 EPG variables of different sexes of different treatments of Bemisia tabaci biotype Q

From: Changes in Bemisia tabaci feeding behaviors caused directly and indirectly by cucurbit chlorotic yellows virus

Variables	Sex	NVW vs. NVP ¹	VW vs. NVP	VW vs. VP
Non-phloem variables
1. Duration of 1st probe (min)	♂	1.41 ± 0.51²a	1.16 ± 0.39a³	1.23 ± 0.08a*⁴
1. Duration of 1st probe (min)	♀	1.08 ± 0.21a	1.10 ± 0.20a	0.86 ± 0.13a
2. Total number of C (#)	♂	61.63 ± 8.67b	101.33 ± 12.48a	68.39 ± 10.18ab
2. Total number of C (#)	♀	59.79 ± 7.21b	100.44 ± 11.73a	72.89 ± 6.33ab*
3. Total duration of C (min)	♂	126.60 ± 11.80b	178.56 ± 21.90a	213.15 ± 13.21a
3. Total duration of C (min)	♀	177.65 ± 13.06a*	184.63 ± 13.07a	189.43 ± 15.65a
4. Total number of pd. (#)	♂	9.74 ± 1.88b	21.56 ± 4.28a	17.67 ± 1.31ab
4. Total number of pd. (#)	♀	10.21 ± 2.44b	25.67 ± 5.44a	17.74 ± 2.78ab
5. Time to 1st E from 1st probe (min)	♂	224.56 ± 22.28ab	188.72 ± 20.42b	246.95 ± 6.50a
5. Time to 1st E from 1st probe (min)	♀	223.36 ± 24.63a	207.82 ± 25.64a	213.85 ± 19.11a
6. Total number of probes before 1st E (#)	♂	46.84 ± 6.49b	80.33 ± 10.66a	83.89 ± 3.94a**
6. Total number of probes before 1st E (#)	♀	48.74 ± 9.04a	70.78 ± 13.91a	58.11 ± 5.03a
Phloem variables
7. Total duration of 1st E1 (min)	♂	3.40 ± 1.34b	6.35 ± 1.49a	2.71 ± 0.39b
7. Total duration of 1st E1 (min)	♀	5.85 ± 1.70b	10.87 ± 3.70a	1.99 ± 0.50c
8. Total number of E1 (#)	♂	1.89 ± 0.26a	2.39 ± 0.49a	1.56 ± 0.12a
8. Total number of E1 (#)	♀	1.84 ± 0.34a	2.56 ± 0.44a	1.74 ± 0.25a
9. Total duration of E1 (min)	♂	5.35 ± 1.45ab	7.56 ± 1.41a	4.49 ± 0.70b
9. Total duration of E1 (min)	♀	7.05 ± 1.61b	12.39 ± 3.63a	3.23 ± 0.93c
10.Total number of E2 (#)	♂	1.32 ± 0.11a	2.17 ± 0.44a	1.56 ± 0.12a
10.Total number of E2 (#)	♀	1.00 ± 0.11b	2.56 ± 0.44a	1.74 ± 0.25ab
11. Total duration of E2 (min)	♂	30.19 ± 12.04a	27.59 ± 7.02a	7.19 ± 0.71b
11. Total duration of E2 (min)	♀	31.25 ± 8.85a	23.49 ± 7.32a	15.88 ± 5.90a*
12. Total number of E1 after 1st E2 (#)	♂	0.42 ± 0.16a*	1.06 ± 0.45a	1.00 ± 0.12a
12. Total number of E1 after 1st E2 (#)	♀	0.11 ± 0.07b	1.56 ± 0.44a	0.68 ± 0.25ab
13. Total duration of E1 after 1st E2 (min)	♂	0.99 ± 0.54a	1.04 ± 0.47a	1.88 ± 0.33a
13. Total duration of E1 after 1st E2 (min)	♀	0.56 ± 0.45a	1.52 ± 0.84a	1.20 ± 0.75a
14. Percentage of E (%)⁵	♂	17.25 ± 5.17a	21.85 ± 5.32a	3.06 ± 0.42a
14. Percentage of E (%)⁵	♀	17.51 ± 4.44a	14.43 ± 3.98a	5.31 ± 1.85b

¹The three treatments include: non-viruliferous B. tabaci whitefly feeding on non-viruliferous cucumber plants (NVW vs. NVP), viruliferous B. tabaci whitefly feeding on non-viruliferous cucumber plants (VW vs. NVP), and viruliferous B. tabaci whitefly feeding on viruliferous cucumber plants (VW vs. VP). ²Data are means ± SE. ³Letters immediately after the mean values represent the comparison of biotype Q on plants under different treatments. Letters after the mean values indicate statistically significant among treatments (Tukey test, P < 0.05). ⁴Asterisks * or ** indicate a statistically significant difference between biotype Q males and females on plants under the same treatments at P < 0.05 or P < 0.01. ⁵Percentage of E (%) = equals the percentage of total duration of E (E1+E2). EPG waveforms: C = pathway; pd = potential drop (intracellular puncture); E1 = phloem salivary secretion; E2 = phloem sap ingestion. E=E1 + E2

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ISSN: 1743-422X

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