Carbon partitioning between apple fruits: short- and long-term response to availability of photosynthate Export

@article{citeulike:4291570, abstract = {Source-sink interactions play an important role in determining both crop yield and the distribution of individual fruit sizes. While there exists a qualitative description of these interactions, there is little or no causal understanding of the interactions. Short-term changes in partitioning of recently fixed photosynthate between alternative apple fruitlets were followed using in vivo measurement of photosynthate movement. The data indicate that apple fruitlets import photosynthate at a rate matching their utilization capacity, so that increases in availability of photosynthate cause only a small immediate increase in import. Over several hours, further and much larger increases occur, suggesting that an increase in enzymatic activity is induced by the increased availability. Short-term reduction in photosynthate supply to a fruitlet resulted in an incapacity of the fruitlet to return to its initial import rate, indicative of the reduction in the activity of enzymes. 10.1093/jxb/48.7.1401}, author = {Minchin, P. E. H. and Thorpe, M. R. and Wunsche, J. N. and Palmer, J. W. and Picton, R. F.}, citeulike-article-id = {4291570}, citeulike-linkout-0 = {http://dx.doi.org/10.1093/jxb/48.7.1401}, citeulike-linkout-1 = {http://jxb.oxfordjournals.org/cgi/content/abstract/48/7/1401?ck=nck}, day = {1}, doi = {10.1093/jxb/48.7.1401}, journal = {J. Exp. Bot.}, month = {July}, number = {7}, pages = {1401--1406}, posted-at = {2009-04-08 18:14:19}, priority = {2}, title = {Carbon partitioning between apple fruits: short- and long-term response to availability of photosynthate}, url = {http://dx.doi.org/10.1093/jxb/48.7.1401}, volume = {48}, year = {1997} }

TY - JOUR ID - citeulike:4291570 L3 - citeulike-article-id:4291570 N2 - Source-sink interactions play an important role in determining both crop yield and the distribution of individual fruit sizes. While there exists a qualitative description of these interactions, there is little or no causal understanding of the interactions. Short-term changes in partitioning of recently fixed photosynthate between alternative apple fruitlets were followed using in vivo measurement of photosynthate movement. The data indicate that apple fruitlets import photosynthate at a rate matching their utilization capacity, so that increases in availability of photosynthate cause only a small immediate increase in import. Over several hours, further and much larger increases occur, suggesting that an increase in enzymatic activity is induced by the increased availability. Short-term reduction in photosynthate supply to a fruitlet resulted in an incapacity of the fruitlet to return to its initial import rate, indicative of the reduction in the activity of enzymes. 10.1093/jxb/48.7.1401 IS - 7 JF - J. Exp. Bot. EP - 1406 TI - Carbon partitioning between apple fruits: short- and long-term response to availability of photosynthate VL - 48 SP - 1401 AU - Minchin, PEH AU - Thorpe, MR AU - Wunsche, JN AU - Palmer, JW AU - Picton, RF PY - 1997/07/01/ UR - http://dx.doi.org/10.1093/jxb/48.7.1401 ER -