Utilization of lightflecks by seedlings of five dominant tree species of different subtropical forest successional stages under low-light growth conditions

Tree Physiology
Qiang ZhangC L Peng

Abstract

We selected five typical tree species, including one early-successional species (ES) Pinus massoniana Lamb., two mid-successional species (MS) Schima superba Gardn. et Champ. and Castanopsis fissa (Champ. ex Benth.) Rehd. et Wils. and two late-successional species (LS) Cryptocarya concinna Hance. and Acmena acuminatissima (BI.) Merr et Perry., which represent the plants at three successional periods in Dinghushan subtropical forest succession of southern China. Potted seedlings of the five species were grown under 12% of full sunlight for 36 months. The ES and MS showed the slowest and fastest responses to lightflecks, respectively, which correlated with the rate of stomatal opening. In contrast to P. massoniana and C. concinna, the other three species exhibited a high induction loss. Early-successional species showed the lowest specific leaf area and chlorophyll content, the highest photosynthetic capacity (A(max)) and respiratory carbon losses (R(d)). Compared with ES and MS, LS showed lower A(max) and R(d). The five tree species showed a similar chlorophyll a/b ratio after long-term low-light adaptations. On the other hand, LS had a relatively higher de-epoxidation state to protect themselves from excess light during lightfl...Continue Reading

References

Apr 12, 2001·Plant Physiology·P MüllerK K Niyogi
Feb 22, 2005·The New Phytologist·Tim J BrodribbBeatriz Palma
May 17, 2005·Annals of Botany·Keara A Franklin, Garry C Whitelam
Aug 13, 2005·The International Journal of Developmental Biology·Keara A FranklinGarry C Whitelam
Jun 9, 2007·Plant Physiology·Tim J BrodribbGregory J Jordan
Feb 19, 2011·Proceedings of the National Academy of Sciences of the United States of America·Hugo Jan de BoerStefan C Dekker

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Citations

Aug 14, 2012·Tree Physiology·Danielle A Way, Robert W Pearcy
Sep 15, 2012·Tree Physiology·Robert W Pearcy, Danielle A Way
Mar 1, 2014·Plant Physiology·Tracy Lawson, Michael R Blatt

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