Morphological and photosynthetic responses differ among eight apple scion-rootstock combinations

Zhou, Yanmin; Tian, Xue; Yao, Jiaojiao; Zhang, Zifan; Wang, Yi; Zhang, Xinzhong; Wei, Li; Wu, Ting; Han, Zhenhai; Xu, Xuefeng; Qiu, Changwei

doi:10.1016/j.scienta.2019.108981

Cited by 24 publications

(23 citation statements)

References 56 publications

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“…DIR can also induce trees to present a dwarfing growth trend, except in the longest branch length (Table 1). Zhou et al compared the tree growth parameters among eight apple scion-rootstock combinations and found that the DIR combination 'Red Fuji'/SH.6/Baleng achieved lower plant height, trunk cross-section area, canopy width, and internode length of the shoots than 'Red Fuji' grafted onto the VR Baleng [2]. The consistency of these experimental results also verifies that the rootstock groups we sought to compare were reasonable.…”

Section: Discussionmentioning

confidence: 87%

“…Apples (Malus domestica) are planted worldwide, and many factors affect the development and phytochemical profile of apples, such as water, fertilizer, temperature, light intensity, grafted rootstock, etc. As an important part of fruit trees, rootstocks not only affect the absorption, transportation and utilization of mineral nutrients but also play an important role in regulating the growth and development of aboveground trees and fruit quality [1,2].…”

Section: Introductionmentioning

confidence: 99%

“…The identification of dwarfing gene (Dw1, Dw2, and Dw3) loci in apple rootstock is contribute to explain the genetic mechanism of dwarfing phenotypes [18,19]. As the photosynthetic organ, the metabolism of leaves reflects the effects of grafting on tree branch architecture growth [2,20,21]. Therefore, to analyze the mechanism of rootstock-induced dwarfing, the most direct choice is to analyze leaf growth status.…”

Section: Introductionmentioning

confidence: 99%

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Transcription profiles reveal sugar and hormone signaling pathways mediating tree branch architecture in apple (Malus domestica Borkh.) grafted on different rootstocks

Chen

Zhao

et al. 2020

PLoS ONE

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Apple trees grafted on different rootstock types, including vigorous rootstock (VR), dwarfing interstock (DIR), and dwarfing self-rootstock (DSR), are widely planted in production, but the molecular determinants of tree branch architecture growth regulation induced by rootstocks are still not well known. In this study, the branch growth phenotypes of three combinations of 'Fuji' apple trees grafted on different rootstocks (VR: Malus baccata; DIR: Malus baccata/ T337; DSR: T337) were investigated. The VR trees presented the biggest branch architecture. The results showed that the sugar content, sugar metabolism-related enzyme activities, and hormone content all presented obvious differences in the tender leaves and buds of apple trees grafted on these rootstocks. Transcriptomic profiles of the tender leaves adjacent to the top buds allowed us to identify genes that were potentially involved in signaling pathways that mediate the regulatory mechanisms underlying growth differences. In total, 3610 differentially expressed genes (DEGs) were identified through pairwise comparisons. The screened data suggested that sugar metabolism-related genes and complex hormone regulatory networks involved the auxin (IAA), cytokinin (CK), abscisic acid (ABA) and gibberellic acid (GA) pathways, as well as several transcription factors, participated in the complicated growth induction process. Overall, this study provides a framework for analysis of the molecular mechanisms underlying differential tree branch growth of apple trees grafted on different rootstocks.

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Section: Discussionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Transcription profiles reveal sugar and hormone signaling pathways mediating tree branch architecture in apple (Malus domestica Borkh.) grafted on different rootstocks

Chen

Zhao

et al. 2020

PLoS ONE

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“…Some studies showed that dwarfing rootstocks have a reduced diameter and density of xylem vessels, which reduces water flow to the scion and photosynthesis efficiency [56]. A low auxin/cytokinin ratio might explain the abnormal xylem development [57] and in fact, auxin transport to the roots is reduced in dwarfing rootstocks [58].…”

Section: Applementioning

confidence: 99%

Axillary Bud Fate Shapes Plant Architecture in Horticultural Crops

Andrés¹,

Koskela²

2022

Horticulturae

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Above-ground plant architecture is dictated to a large extent by the fates and growth rates of aerial plant meristems. Shoot apical meristem gives rise to the fundamental plant form by generating new leaves. However, the fates of axillary meristems located in leaf axils have a great influence on plant architecture and affect the harvest index, yield potential and cultural practices. Improving plant architecture by breeding facilitates denser plantations, better resource use efficiency and even mechanical harvesting. Knowledge of the genetic mechanisms regulating plant architecture is needed for precision breeding, especially for determining feasible breeding targets. Fortunately, research in many crop species has demonstrated that a relatively small number of genes has a large effect on axillary meristem fates. In this review, we select a number of important horticultural and agricultural plant species as examples of how changes in plant architecture affect the cultivation practices of the species. We focus specifically on the determination of the axillary meristem fate and review how plant architecture may change even drastically because of altered axillary meristem fate. We also explain what is known about the genetic and environmental control of plant architecture in these species, and how further changes in plant architectural traits could benefit the horticultural sector.

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“…In addition, the demand for nitrogen is greatest during the seedling stage (Kimmins et al 2010). Increasing nitrogen application can improve chlorophyll content and leaf photosynthetic rate (Feng et al 2008, Zhou et al 2020, and an appropriate nitrogen supply is of benefit for promoting the distribution and operation of apple photosynthates (Sha et al 2019). Therefore, it is of great application value to study the protective effects of nitrogen application on photosynthesis of M. sieversii under low temperatures.…”

Section: Introductionmentioning

confidence: 99%

Effects of temperature and nitrogen application on photosynthetic characteristics and the absorption and distribution of carbon and nitrogen in apple plants

Zhang¹,

Liu²,

Li³

et al. 2021

Photosynt.

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Atom 13 C -13 C abundance; Atom 15 N -15 N abundance; Ci -intercellular CO2 concentration; Con 13 C -13 C absolute abundance; Con 15 N -15 N absolute abundance; DAT -days after temperature and nitrogen application treatment; E -transpiration rate; Fv/Fm -maximum quantum efficiency of PSII photochemistry; gs -stomatal conductance; PN -net photosynthetic rate; qP -photochemical quenching coefficient; YII -quantum efficiency of PSII; YNPQ -quantum yield of regulated energy dissipation of PSII; δ 13 C -amount of fixed 13 C assimilates; δ 15 N -amount of fixed 15 N assimilates.

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Morphological and photosynthetic responses differ among eight apple scion-rootstock combinations

Cited by 24 publications

References 56 publications

Transcription profiles reveal sugar and hormone signaling pathways mediating tree branch architecture in apple (Malus domestica Borkh.) grafted on different rootstocks

Transcription profiles reveal sugar and hormone signaling pathways mediating tree branch architecture in apple (Malus domestica Borkh.) grafted on different rootstocks

Axillary Bud Fate Shapes Plant Architecture in Horticultural Crops

Effects of temperature and nitrogen application on photosynthetic characteristics and the absorption and distribution of carbon and nitrogen in apple plants

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