The anatomical structure character of raspberry stems is a key factor affecting its cold resistance

Chang, Feiyang; Zhang, Liye; Dong, Qinglong; Luan, Haoan; Jia, Peng; Gao, Qi; Guo, Song; Xue-mei, Zhang

doi:10.1016/j.flora.2022.152196

Cited by 8 publications

(4 citation statements)

References 15 publications

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“…Cold-resistant resources notably have a more defined phellem layer and a higher degree of phellem transformation, consistent with findings from walnut branch research [ 69 ]. The phloem thickness of Kanoiwa was significantly higher than that of other varieties in this study; however, its cold resistance was found to be low (LR) in the comprehensive evaluation, which contradicts previous findings on the cold resistance of raspberry [ 67 ] and apple [ 70 ]. Anatomical features can provide considerable insight into a plant’s cold resistance, offering valuable comparative measures for different resources.…”

Section: Discussioncontrasting

confidence: 99%

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Physiochemical Responses and Ecological Adaptations of Peach to Low-Temperature Stress: Assessing the Cold Resistance of Local Peach Varieties from Gansu, China

Niu,

Zhao,

Wang

et al. 2023

Plants

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In recent years, extreme weather events have become increasingly frequent, and low winter temperatures have had a significant impact on peach cultivation. The selection of cold-resistant peach varieties is an effective solution to mitigate freezing damage. To comprehensively and accurately evaluate the cold resistance of peaches and screen for high cold resistance among Gansu local resources, nine different types of peach were selected as test resources to assess physiological, biochemical, and anatomical indices. Subsequently, 28 peach germplasms were evaluated using relevant indices. The semi-lethal temperature (LT50) was calculated by fitting the change curve of the electrolyte leakage index (ELI) with the Logistic equation; this can be used as an important index for identifying and evaluating the cold resistance of peach trees. The LT50 values ranged from −28.22 °C to −17.22 °C among the 28 tested resources; Dingjiaba Liguang Tao exhibited the lowest LT50 value at −28.22 °C, indicating its high level of cold resistance. The LT50 was positively correlated with the ELI and malondialdehyde (MDA) content with correlation coefficients of 0.894 and 0.863, respectively, while it was negatively correlated with the soluble sugar (SS), soluble protein (SP), and free proline (Pro) contents with correlation coefficients of −0.894, −0.721, and −0.863, respectively. The thicknesses of the xylem, cork layer, cork layer ratio (CLR) and thickness/cortex thickness (X/C) showed negative correlations (−0.694, −0.741, −0.822, −0.814, respectively). Finally, the membership function method was used to evaluate cold resistance based on the ELI, MDA, Pro, SP, SS, CLR, and xylem thickness/cortex thickness (X/C) indices. The average membership degree among all tested resources ranged from 0.17 to 0.61. Dingjiaba Liguang Tao emerged prominently in terms of high-cold-resistance (HR) membership value (0.61).

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Section: Discussioncontrasting

confidence: 99%

“…These adaptations strengthen their resilience, shielding them from potential disturbances [ 23 ]. Consequently, anatomical traits have emerged as vital markers in cold-resistance research, acting as critical reference points [ 24 , 67 ].…”

Section: Discussionmentioning

confidence: 99%

Physiochemical Responses and Ecological Adaptations of Peach to Low-Temperature Stress: Assessing the Cold Resistance of Local Peach Varieties from Gansu, China

Niu,

Zhao,

Wang

et al. 2023

Plants

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“…In this study, we found that the phloem of HF, with strong cold resistance, was thicker and accumulated a larger amount of soluble sugar (primarily sucrose and sorbitol) than that of CF (Figures 2C, 3 and 4). Similarly, in comparing the cold resistance of different varieties of raspberries, Chang et al found that raspberries with stronger cold resistance often have thicker phloem [64].…”

Section: Discussionmentioning

confidence: 98%

Physiological and Structural Changes in Apple Tree Branches of Different Varieties during Dormancy

Xu,

He,

Zhao

et al. 2023

Horticulturae

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Low temperature is an abiotic stress factor limiting the distribution of fruit tree cultivation areas. As temperate deciduous fruit trees, apple (Malus domestica) trees go dormant in the winter to adapt to or avoid damage caused by low temperatures. The capacity for cold resistance is closely linked to the physiological, biochemical, and structural characteristics of one-year-old branches. In this study, we investigated such changes in the branches of cold-resistant ‘Hanfu’ (HF) and cold-sensitive ‘Naganofuji 2’ (CF) apple varieties. The relative electrical conductivity, malondialdehyde content, and reactive oxygen species content of HF branches were lower than those of CF branches, while the antioxidant enzyme activity was higher in HF. The proline, soluble protein, and soluble sugar contents in both varieties showed an initial increase, followed by a subsequent decrease. Sucrose and sorbitol were the main sugar components, but sucrose and fructose were higher in HF than in CF. The periderm, phloem, and xylem of HF branches were also found to be thicker than those of CF branches, while the vessel diameter was smaller and the density greater. The results of this study provide a theoretical reference for further research on the low temperature adaptability of apple tree branches during dormancy.

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“…Leaves were cleaned by sterilizing water and stored in the FAA fixative. Leaf tissues were dyed by hematoxylin staining method and fixed with paraffin before observed ( Xiong et al., 2017 ; Chang et al., 2023 ). The tissue sections were observed under electron microscope and analyzed through separately quantifying variables in the visible field using Case Viewer software.…”

Section: Methodsmentioning

confidence: 99%

Responses of photosystem to long-term light stress in a typically shade-tolerant species Panax notoginseng

Xu¹,

Zhang²,

Shuang³

et al. 2023

Front. Plant Sci.

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Photosynthetic adaptive strategies vary with the growth irradiance. The potential photosynthetic adaptive strategies of shade-tolerant species Panax notoginseng (Burkill) F. H. Chen to long-term high light and low light remains unclear. Photosynthetic performance, photosynthesis-related pigments, leaves anatomical characteristics and antioxidant enzyme activities were comparatively determined in P. notoginseng grown under different light regimes. The thickness of the upper epidermis, palisade tissue, and lower epidermis were declined with increasing growth irradiance. Low-light-grown leaves were declined in transpiration rate (Tr) and stomatal conductance (Cond), but intercellular CO2 concentration (Ci) and net photosynthesis rate (Pn) had opposite trends. The maximum photo-oxidation P700+ (Pm) was greatly reduced in 29.8% full sunlight (FL) plants; The maximum quantum yield of photosystem II (Fv/Fm) in 0.2% FL plants was significantly lowest. Electron transport, thermal dissipation, and the effective quantum yield of PSI [Y(I)] and PSII [Y(II)] were declined in low-light-grown plants compared with high-light-grown P. notoginseng. The minimum value of non-regulated energy dissipation of PSII [Y(NO)] was recorded in 0.2% FL P. notoginseng. OJIP kinetic curve showed that relative variable fluorescence at J-phase (VJ) and the ratio of variable fluorescent FK occupying the FJ-FO amplitude (Wk) were significantly increased in 0.2% FL plants. However, the increase in Wk was lower than the increase in VJ. In conclusion, PSI photoinhibition is the underlying sensitivity of the typically shade-tolerant species P. notoginseng to high light, and the photodamage to PSII acceptor side might cause the typically shade-tolerant plants to be unsuitable for long-term low light stress.

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The anatomical structure character of raspberry stems is a key factor affecting its cold resistance

Cited by 8 publications

References 15 publications

Physiochemical Responses and Ecological Adaptations of Peach to Low-Temperature Stress: Assessing the Cold Resistance of Local Peach Varieties from Gansu, China

Physiochemical Responses and Ecological Adaptations of Peach to Low-Temperature Stress: Assessing the Cold Resistance of Local Peach Varieties from Gansu, China

Physiological and Structural Changes in Apple Tree Branches of Different Varieties during Dormancy

Responses of photosystem to long-term light stress in a typically shade-tolerant species Panax notoginseng

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