24-Epibrassinolide mitigates nickel toxicity in young Eucalyptus urophylla S.T. Blake plants: nutritional, physiological, biochemical, anatomical and morphological responses

Table 2 Root anatomy in young Eucalyptus urophylla plants sprayed with EBR and exposed to Ni toxicity

Ni	EBR	RET (μm)		RDT (μm)		RCT (μm)		VCD (μm)		RMD (μm)
−	−	15.0a		11.6a		411a		228b		13.0a
−	+	15.6a	4%	12.1a	4%	417a	1%	249a	9%	13.5a	4%
+	−	6.5c		6.1c		336b		199c		9.3c
+	+	9.8b	51%	8.8b	44%	353b	5%	222b	12%	10.9b	17%

RET = Root epidermis thickness; RDT = Root endodermis thickness; RCT = Root cortex thickness; VCD = Vascular cylinder diameter; RMD = Root metaxylem diameter. Comparison with similar treatment without EBR. Columns with different letters indicate significant differences from the Scott-Knott test (P < 0.05). Values described corresponding to means from five repetitions and standard deviations

ISSN: 1297-966X