Autotetraploidization in Ziziphus jujuba Mill. var. spinosa enhances salt tolerance conferred by active, diverse stress responses

Li, Meng; Guo, Yifeng; Liu, Songshan; Zhao, Yao; Pang, Xiaoming; Li, Yingyue

doi:10.1016/j.envexpbot.2019.05.016

Cited by 21 publications

(8 citation statements)

References 71 publications

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“…Moreover, H 2 O 2 , MDA and lipid peroxidation also indicate the stress intensities [ 10 ]. Activation of the defense mechanism determines the tolerance/sensitivity level of Zizyphus trees growing under saline conditions, as reported by Li et al [ 11 ] and Back et al [ 12 ]. Little information regarding fruit tree responses under salinity is available, and knowledge about the use of melatonin spray against salinity is still limited in minor fruit crops, especially Zizyphus .…”

Section: Introductionmentioning

confidence: 82%

Exogenous Melatonin Spray Enhances Salinity Tolerance in Zizyphus Germplasm: A Brief Theory

Ahmad

Manzoor

Muhammad

et al. 2023

Life

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Fruit orchards are frequently irrigated with brackish water. Irrigation with poor quality water is also a major cause of salt accumulation in soil. An excess of salts results in stunted growth, poor yield, inferior quality and low nutritional properties. Melatonin is a low molecular weight protein that shows multifunctional, regulatory and pleiotropic behavior in the plant kingdom. Recently, its discovery brought a great revolution in sustainable fruit production under salinity-induced environments. Melatonin contributed to enhanced tolerance in Zizyphus fruit species by improving the plant defense system’s potential to cope with the adverse effects of salinity. The supplemental application of melatonin has improved the generation of antioxidant assays and osmolytes involved in the scavenging of toxic ROS. The tolerance level of the germplasm is chiefly based on the activation of the defense system against the adverse effects of salinity. The current study explored the contribution of melatonin against salinity stress and provides information regarding which biochemical mechanism can be effective and utilized for the development of salt-tolerant germplasm in Zizyphus.

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Section: Introductionmentioning

confidence: 82%

Exogenous Melatonin Spray Enhances Salinity Tolerance in Zizyphus Germplasm: A Brief Theory

Ahmad

Manzoor

Muhammad

et al. 2023

Life

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“…TFs, have been reported to be differentially expressed in response to drought stress, but their underlying is still unclear. In a previous study, autotetraploid sour jujube was acquired by colchicine-induced somatic cell chromosomal doubling, and superior salt resistance and drought tolerance were detected in autotetraploid sour jujube compared with diploid sour jujube (Li et al, 2019c(Li et al, , 2021b. Furthermore, the type and number of TFs changed between the diploid and autotetraploid plants, especially NAC TFs after salinity and drought stress.…”

Section: Introductionmentioning

confidence: 90%

Genome-Wide Identification of Direct Targets of ZjVND7 Reveals the Putative Roles of Whole-Genome Duplication in Sour Jujube in Regulating Xylem Vessel Differentiation and Drought Tolerance

Hou

Zhang

et al. 2022

Front. Plant Sci.

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The effects of whole-genome duplication span multiple levels. Previous study reported that the autotetraploid sour jujube exhibited superior drought tolerance than diploid. However, the difference in water transport system between diploids and autotetraploids and its mechanism remain unclear. Here, we found the number of xylem vessels and parenchyma cells in autotetraploid sour jujube increased to nearly twice that of diploid sour jujube, which may be closely related to the differences in xylem vessel differentiation-related ZjVND7 targets between the two ploidy types. Although the five enriched binding motifs are different, the most reliable motif in both diploid and autotetraploid sour jujube was CTTNAAG. Additionally, ZjVND7 targeted 236 and 321 genes in diploids and autotetraploids, respectively. More identified targeted genes of ZjVND7 were annotated to xylem development, secondary wall synthesis, cell death, cell division, and DNA endoreplication in autotetraploids than in diploids. SMR1 plays distinct roles in both proliferating and differentiated cells. Under drought stress, the binding signal of ZjVND7 to ZjSMR1 was stronger in autotetraploids than in diploids, and the fold-changes in the expression of ZjVND7 and ZjSMR1 were larger in the autotetraploids than in the diploids. These results suggested that the targeted regulation of ZjVND7 on ZjSMR1 may play valuable roles in autotetraploids in the response to drought stress. We hypothesized that the binding of ZjVND7 to ZjSMR1 might play a role in cell division and transdifferentiation from parenchyma cells to vessels in the xylem. This regulation could prolong the cell cycle and regulate endoreplication in response to drought stress and abscisic acid, which may be stronger in polyploids.

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“…The contents of vitamin C, cAMP, soluble sugars, titratable acids, sucrose, glucose, and fructose were significantly higher in tetraploid 'Riguang' fruits than in diploid 'Dongzao' fruits 79 . It was discovered that an autotetraploid sour jujube had higher tolerance to salinity than the diploid, and its preliminary molecular mechanism was illustrated 80,81 . In addition, triploids of 'Jinsixiaozao', 'Yuanlingzao', and 'Changhongzao' have been created by endosperm culture, but no new cultivar has been released 82 .…”

Section: Creating a Mixoploid-free Polyploid Induction Systemmentioning

confidence: 99%

The historical and current research progress on jujube–a superfruit for the future

et al. 2020

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Jujube (Ziziphus jujuba Mill.), or Chinese date, is the most important species of Rhamnaceae, a large cosmopolitan family, and is one of the oldest cultivated fruit trees in the world. It originates from the middle and lower reaches of the Yellow River, the 'mother river' of the Chinese people. It is distributed in at least 48 countries on all continents except Antarctica and is becoming increasingly important, especially in arid and semiarid marginal lands. Based on a systematic analysis of the unique characteristics of jujube, we suggest that it deserves to be recognized as a superfruit. We summarized historical research achievements from the past 3000 years and reviewed recent research advances since 1949 in seven fields, including genome sequencing and application, germplasm resources and systematic taxonomy, breeding and genetics, cultivation theory and techniques, pest control, postharvest physiology and techniques, and nutrition and processing. Based on the challenges facing the jujube industry, we discuss eight research aspects to be focused on in the future.

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Autotetraploidization in Ziziphus jujuba Mill. var. spinosa enhances salt tolerance conferred by active, diverse stress responses

Cited by 21 publications

References 71 publications

Exogenous Melatonin Spray Enhances Salinity Tolerance in Zizyphus Germplasm: A Brief Theory

Exogenous Melatonin Spray Enhances Salinity Tolerance in Zizyphus Germplasm: A Brief Theory

Genome-Wide Identification of Direct Targets of ZjVND7 Reveals the Putative Roles of Whole-Genome Duplication in Sour Jujube in Regulating Xylem Vessel Differentiation and Drought Tolerance

The historical and current research progress on jujube–a superfruit for the future

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