Characteristics of Photoassimilates Transportation and Distribution to the Fruits from Leaves at Different Branch Positions in Apple

Sha, Jianchuan; Wang, Fen; Chen, Qian; Jia, Zhihang; Du, Xin; Ge, Shunfeng; Zhu, Zhanling; Jiang, Yuanmao

doi:10.1007/s00344-020-10182-5

Cited by 10 publications

(2 citation statements)

References 26 publications

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“…We observed that the activities of Rubisco treated with FA were obviously greater than those treated with the CK (Figure 2F), which meant that the FA treatment enhanced the capacity of photosynthetic assimilate synthesis to varying degrees. The synthesis of sorbitol and sucrose in the leaves and their transport from leaves to other organs has a very positive effect on the various physiological and biochemical processes in plants (such as organ construction) [31]. In this study, compared with the CK, the FA application increased the S6PDH, SPS, and SS activities in the leaves (Figure 3A-C), suggesting that the sorbitol and sucrose synthesis in the leaves were enhanced when the seedlings were exposed to the FA treatment conditions.…”

Section: Fa Promoted Photosynthesis and The Transport Of Photosynthat...mentioning

confidence: 99%

Effects of Fulvic Acid on Growth and Nitrogen Utilization Efficiency in M9T337 Seedlings

Yu,

Wang,

Cui

et al. 2023

Plants

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Both fulvic acid (FA) and nitrogen (N) play important roles in agricultural production in China. Plants typically show a higher nitrogen utilization efficiency (NUE) under FA application. However, the role of FA application in apple growth and NUE remains unclear. A hydroponic culture experiment was performed, and M9T337 seedlings (a dwarf apple rootstock) were used as the experimental subjects. The biomass, photosynthesis, accumulation, and distribution of photosynthates, N absorption and assimilation, and relative gene expression in the seedlings were examined after treatment with five different concentrations of FA (0, 60, 120, 180, and 240 mg·L−1, represented by CK, FA1, FA2, FA3, FA4, respectively). The results showed that the seedling dry weight and 15NUE were enhanced by FA, and both were highest under the FA2 (the concentration of fulvic acid is 120 mg·L−1) treatment. Further analysis revealed that under the FA2 treatment, the root morphology was optimized, and the root activity was relatively high. Compared with CK (control, the concentration of fulvic acid is 0 mg·L−1), the FA2 treatment strengthened photosynthesis, elevated the key enzyme activities related to C metabolism, upregulated the gene expression of sugar transport proteins, and increased the root sorbitol and sucrose contents, which suggested that the FA2 treatment optimally affected the root growth and N absorption because it enhanced photosynthate synthesis and the leaf-to-root translocation of photoassimilates. The seedlings in the FA2 treatment group also showed a significantly higher NO3− influx rate and NRT (nitrate transporter) gene expression in the roots. Moreover, relatively high N metabolism-related enzyme activities in the leaves and roots were also observed under the FA2 treatment. The isotope labeling results showed that the optimal FA2 supply not only promoted seedling 15N absorption but also optimized the distribution of C and N in the seedlings. These results suggested that an optimal FA supply (120 mg·L−1) enhanced seedling NUE by strengthening photoassimilate synthesis and transport from leaves to roots, regulating N absorption, assimilation, and distribution.

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Section: Fa Promoted Photosynthesis and The Transport Of Photosynthat...mentioning

confidence: 99%

Effects of Fulvic Acid on Growth and Nitrogen Utilization Efficiency in M9T337 Seedlings

Yu,

Wang,

Cui

et al. 2023

Plants

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“…As a perennial crop, apple has many types of branches, and the photosynthetic and nutrient transport capacities of the leaves differ among branches, as does their contribution to fruit growth and development [16,17]. The less vigorous the tree, the higher the proportion of short branches, and the greater the nutrient accumulation; more nutrients promote flower bud differentiation and improve yield [18][19][20]. In this study, compared with SH40 and Jizhen 2, short and intermediate branches accounted for 81.02% the branches on Jizhen 1, and the yield was 33,505.33 kg•hm −2 .…”

Section: Effects Of the Dwarfing Interstocks On Branch Composition An...mentioning

confidence: 99%

The Effect of Dwarfing Interstocks on Vegetative Growth, Fruit Quality and Ionome Nutrition of ‘Fuji’ Apple Cultivar ‘Tianhong 2’—A One-Year Study

Zhang

Chen

et al. 2023

Plants

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Dwarfing interstocks play an essential role in determining the performance of fruit trees. SH40, Jizhen 1, and Jizhen 2 are widely used dwarfing interstocks in Hebei Province, China. This study examined the influence of these three dwarfing interstocks on vegetative growth, fruit quality and yield, and leaf and fruit macro- (N, P, K, Ca, and Mg) and micro- (Fe, Zn, Cu, Mn, and B) element contents for ‘Tianhong 2’. Five-year-old ‘Fuji’ apple cultivar, ‘Tianhong 2’, on ‘Malus. Robusta’ rootstock, was cultivated with SH40, Jizhen 1, or Jizhen2 dwarfing rootstock as an interstock bridge. Jizhen 1 and 2 had more branches and a higher proportion of short branches than SH40. Jizhen 2 had a higher yield, good fruit quality, and higher leaf macro- (N, P, K, and Ca) and micro-element (Fe, Zn, Cu, Mn, and B) contents; Jizhen 1 had the highest leaf Mg content in the growing period. The fruit N, P, K, Fe, Zn, Cu, Mn, and B contents were higher in Jizhen 2. SH40 had the highest fruit Ca content. There were significant correlations in nutrient elements between leaves and fruit in June and July. Comprehensive analysis showed that Tianhong 2 had moderate tree vigor, high yield, good fruit quality, and high mineral element content in leaves and fruits when Jizhen 2 was used as an interstock.

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Colored Plastic Film Mulching Regulates Light Quality and Sucrose Metabolism in Wine Grape in an Arid Desert Oasis

Zhou

Yang

Feng

2023

J Plant Growth Regul

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Characteristics of Photoassimilates Transportation and Distribution to the Fruits from Leaves at Different Branch Positions in Apple

Cited by 10 publications

References 26 publications

Effects of Fulvic Acid on Growth and Nitrogen Utilization Efficiency in M9T337 Seedlings

Effects of Fulvic Acid on Growth and Nitrogen Utilization Efficiency in M9T337 Seedlings

The Effect of Dwarfing Interstocks on Vegetative Growth, Fruit Quality and Ionome Nutrition of ‘Fuji’ Apple Cultivar ‘Tianhong 2’—A One-Year Study

Colored Plastic Film Mulching Regulates Light Quality and Sucrose Metabolism in Wine Grape in an Arid Desert Oasis

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