2003
DOI: 10.21273/jashs.128.1.0113
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Changes in Photosynthesis and Carbohydrate Metabolism in Mature Apple Leaves in Response to Whole Plant Source-Sink Manipulation

Abstract: Photosynthesis and carbohydrate metabolism in apple [Malus sylvestris (L.) Mill. var. domestica (Borkh.) Mansf.] source leaves were monitored during a 7-day period after source-sink manipulations by girdling or partial defoliation treatments. In the girdling treatment, sorbitol, sucrose, glucose, and starch accumulated in leaves, and net photosynthetic rates (Pn) at 350 μL·L-1 CO2 decreased during a 7-day pe… Show more

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Cited by 87 publications
(52 citation statements)
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References 36 publications
(42 reference statements)
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“…Reductions in total non-structural carbohydrate (NSC) concentrations in the remaining leaves following defoliation have been observed (e.g. Layne and Flore, 1995; Myers et al ., 1999; Zhou and Quebedeaux, 2003) and are consistent with an increased demand and export of NSC from source leaves to developing sinks. However, this response is not universal (see Lavigne et al ., 2001; Turnbull et al ., 2007; Eyles et al ., 2009 b ).…”
Section: Introductionsupporting
confidence: 58%
“…Reductions in total non-structural carbohydrate (NSC) concentrations in the remaining leaves following defoliation have been observed (e.g. Layne and Flore, 1995; Myers et al ., 1999; Zhou and Quebedeaux, 2003) and are consistent with an increased demand and export of NSC from source leaves to developing sinks. However, this response is not universal (see Lavigne et al ., 2001; Turnbull et al ., 2007; Eyles et al ., 2009 b ).…”
Section: Introductionsupporting
confidence: 58%
“…3). Our result is similar to that found in previous studies: a decline in Pn as a result of girdling treatment has been evidenced by many experiments (Di Vaio et al 2001;Zhou and Quebedeaux 2003;Urban et al 2004), and an increase in Pn as a result of LR treatment has also been evidenced by previous study (Petrie et al 2000).…”
Section: Discussionsupporting
confidence: 93%
“…In grapevine, girdling at fruit set resulted in parallel decreases in both A and g s with no commensurate changes in non-structural carbohydrates (Williams et al 2000). In apple, Zhou and Quebedeaux (2003) found an 80% drop in A after girdling under ambient (37 Pa) CO 2 ; however, only a 20% drop was reported under elevated (100 Pa) CO 2 , suggesting that diffusive resistance was the major constraint on A. Furthermore, decreased A in apple trees under low sink demand following girdling was largely associated with stomatal limitations (Cheng et al 2008;Fan et al 2010) but was apparently independent of metabolite feedback inhibition (Fan et al 2010).…”
Section: Photosynthesis Drop In Leaves From Girdled Branchesmentioning
confidence: 93%