Distribution and mixing of old and new nonstructural carbon in two temperate trees
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New Phytologist. 206(2): 590-597.
We know surprisingly little about whole-tree nonstructural carbon (NSC; primarily sugars and starch) budgets. Even less well understood is the mixing between recent photosynthetic assimilates (new NSC) and previously stored reserves. And, NSC turnover times are poorly constrained. We characterized the distribution of NSC in the stemwood, branches, and roots of two temperate trees, and we used the continuous label offered by the radiocarbon (carbon-14, 14C) bomb spike to estimate the mean age of NSC in different tissues.
Keywordscarbohydrates, carbon allocation, Harvard Forest, radiocarbon (14C), storage, tree rings, wood
Richardson, Andrew D.; Carbone, Mariah S.; Huggett, Brett A.; Furze, Morgan E.; Czimczik, Claudia I.; Walker, Jennifer C.; Xu, Xiaomei; Schaberg, Paul G.; Murakami, Paula. 2015. Distribution and mixing of old and new nonstructural carbon in two temperate trees. New Phytologist. 206(2): 590-597. https://doi.org/10.1111/nph.13273.