. 2013 Feb 6;111(4):577–589. doi: 10.1093/aob/mct017

Table 2.

Mean counts of organelles and numbers of stacked thylakoids per granum in chloroplasts of bundle sheath (BS) and mesophyll (M) cells in C₄ Trianthema portulacastrum, Trianthema sheilae and Zaleya pentandra (± s.e.)

Species/tissue type	Chloroplasts (n)*	Mitochondria (n)*	Peroxisomes (n)*	Thylakoids/granal stack (n)^†
BS tissue
Trianthema portulacastrum	22·6 ± 0·5^a	16·3 ± 0·2^a	2·8 ± 0·2^a	2·3 ± 0·03^a
Trianthema sheilae	20·7 ± 0·5^b	39·3 ± 1·0^b	2·1 ± 0·2^b	5·0 ± 0·1^b
Zaleya pentandra	16·1 ± 0·4^c	32·8 ± 1·4^c	3·1 ± 0·2^a	4·1 ± 0·1^c
M tissue
Trianthema portulacastrum	6·4 ± 0·4^a	5·4 ± 0·3^a	0·4 ± 0·1^NS	4·6 ± 0·1^a
Trianthema sheilae	5·6 ± 0·3^a	8·7 ± 0·4^b	0·3 ± 0·1^NS	2·7 ± 0·1^b
Zaleya pentandra	8·9 ± 0·3^b	6·3 ± 0·4^a	0·3 ± 0·1^NS	2·6 ± 0·1^b

Different letters indicate significant BS or M organelle differences between species using one-way ANOVA (P < 0·001). NS, non-significant.

* n = 18 cells per tissue type per species.

^† n = 4–7 chloroplasts per tissue type per species.