Table 1.

Composition and Function of the Photosynthetic Apparatusa

LinesPmax
(μmol O2∙m–2∙sec–1)
Functional PSII
(mmol∙mol Chl–1)
Chl a/b
Wild type
$#x00A0;$#x00A0;$#x00A0;$#x00A0;HL23.7 ± 1.03.85 ± 0.123.82 ± 0.05
$#x00A0;$#x00A0;$#x00A0;$#x00A0;LL14.2 ± 0.53.03 ± 0.163.33 ± 0.01
CP29
$#x00A0;$#x00A0;$#x00A0;$#x00A0;HL20.8 ± 2.04.42 ± 0.18b3.88 ± 0.06
$#x00A0;$#x00A0;$#x00A0;$#x00A0;LL12.3 ± 0.5b2.98 ± 0.193.31 ± 0.02
CP26
$#x00A0;$#x00A0;$#x00A0;$#x00A0;HL28.8 ± 2.0b5.04 ± 0.44b3.85 ± 0.10
$#x00A0;$#x00A0;$#x00A0;$#x00A0;LL15.2 ± 0.54.03 ± 0.15b3.28 ± 0.02
  • a Maximum photosynthetic rate (Pmax) was determined, and functional PSII and chlorophyll were assayed in leaf discs from plants grown under HL or LL. Data are means ±se (n ≥ 4). Chl, chlorophyll.

  • b Significant differences from the corresponding wild-type parental line (P < 0.05).