. 2017 Sep 2;16(1):322–336. doi: 10.1111/pbi.12774

Table 4.

Qualitative and quantitative analysis on histological slides of primary and secondary latex cells in leaves, green and lignified stems, and taproot of 1‐year‐old plants from wild‐type and transgenic lines. The abundance of primary latex cells (PCL) and secondary latex cells (SLC) was estimated as follows: (−): absence; (+): rare; (++): 5–10; (+++): 10–50; (++++): >50

Construct	Line	Primary latex cell					Secondary latex cell
		Leaf		Green stem	Lignified stem	Root	Green stem	Lignified stem
		Midrib	Lamina	Green stem	Lignified stem	Root	Green stem	Lignified stem
None	CI07060	50^a	4^a	+	−	+	+	+++
35S::HbERF‐IXc5	TS19A46	157^c	5^a	+++	−	+	+++	++++
35S::HbERF‐IXc5	TS19A90	37^a	3^a	+	−	+	+	++
HEV2.1::HbERF‐IXc5	TS20A69	113^b	12^a	+	−	+	+	+
HEV2.1::HbERF‐IXc5	TS20A75	84^b	3^a	++	−	+	+	++

Statistical analysis was performed with an ANOVA followed by the Tukey test. Values with the same letter were not significantly different at the 0.05 probability level.