Introducing Grafted Cucurbits to Modern Agriculture: The Israeli Experience

Cohen, R.; Burger, Y.; Horev, C.; Koren, Amnon; Edelstein, M.

doi:10.1094/pdis-91-8-0916

Cited by 107 publications

(85 citation statements)

References 7 publications

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“…One of these is the metabolism of phenolic compounds (Haslam and Lilley, 1986), which are also involved in the stress and wounding response (Leonardi and Romano, 2004;Cohen et al, 2007). As expected in a normal wound reaction, an intense production of new phenolic compounds has been reported during the establishment of a graft union (Tiedemann, 1989;Hartmann et al, 2002;Kueger et al, 2012).…”

Section: Metabolic Pathwaysmentioning

confidence: 99%

“…As mentioned before, the success of grafting depends primarily on the compatibility of the graft union to enable rapid development of vascular connections between the stock and the scion (Olmstead et al, 2006), which, in turn, will allow quick resumption of the growth of both the root and the canopy (Hartmann et al, 2002;Leonardi and Romano, 2004;Cohen et al, 2007). In grafted plants, vascular regeneration is a complex process that includes structural differentiation of the parenchymatous tissue from both sides of the graft union into xylem and phloem (Olmstead et al, 2006;Aloni et al, 2010).…”

Section: Formation Of the Stock/scion Unionmentioning

confidence: 99%

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Graft incompatibility in plants: Metabolic changes during formation and establishment of the rootstock/scion union with emphasis on Prunus species

Gainza¹,

Opazo²,

Muñoz

2015

Chilean J. Agric. Res.

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Commercial fruit trees are usually formed by the combination of a rootstock and a scion to broaden the adaptability of scion cultivars to soil and climatic conditions, facilitate agricultural management, and/or increase productivity. In the different cultivated species of the genus Prunus, rootstocks having a wide range of uses are scarce, because of rootstock/ scion graft incompatibilities that prevent the establishment of a strong and lasting functional union. Graft incompatibility is a problem in cherry, almond, and apricot than in peach or plum. In general, closely related cultivars and species tend to be compatible, but taxonomically distant plants often manifest incompatibility. This review will focus on the knowledge currently available on the metabolic response during the formation and establishment of the stock/scion graft union in order to help the effort for identify future metabolic markers to be used in breeding programs. The physiological, metabolic and molecular mechanisms that cause incompatibility remain unclear and several hypotheses have been proposed to explain it, mostly based on herbaceous species. Few studies are available to explain incompatibility in woody plants. Various phenolic compounds are known to affect cell division, development and differentiation at the graft union. Flavonol (catechins and proanthocyanidins) concentrations increase shortly after grafting and, as a result of the stress induced during the healing response, vacuolar membrane disruption occurs resulting in the escape of phenols from the vacuole into the cytoplasmic matrix, causing dysfunctions in the growth of certain tissues (xylem and phloem), interference with the synthesis of lignin or inducing hormonal imbalances. All these abnormalities result in mechanical weakening of the union, which may manifest during the first year after grafting (translocated incompatibility) or may appear several years later (localized incompatibility), leading to major economic losses. More research is needed to fully understand the mechanism of graft incompatibility, particularly in woody plants. This knowledge is essential to develop molecular markers useful in rootstock breeding programs.

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Section: Metabolic Pathwaysmentioning

confidence: 99%

Section: Formation Of the Stock/scion Unionmentioning

confidence: 99%

Graft incompatibility in plants: Metabolic changes during formation and establishment of the rootstock/scion union with emphasis on Prunus species

Gainza¹,

Opazo²,

Muñoz

2015

Chilean J. Agric. Res.

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“…A wealth of reports have illustrated that different rootstock genotypes could have differential effects on the yield and quality of the grafted vegetable and the overall performance of the graft largely depends on the specificity of the rootstock-scion combination (Cohen et al 2007). …”

Section: Introductionmentioning

confidence: 99%

“…In the past decade, a growing number of investigations in Cucurbitaceae grafting has been carried out aiming to improve the performance of high-value vegetables such as cucumber, melon and watermelon (Cohen et al 2007). Recently, grafting of watermelon onto specific rootstocks resulted in significant increase of lycopene content in watermelon fruits and enhanced resistance to soil-borne diseases (Mohamed et al 2012), whereas different rootstock-scion combinations lead to alterations in the content of plant nutrients in leaves and fruits of watermelon grafts (Yetisir et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Global DNA methylation changes in Cucurbitaceae inter-species grafting

Avramidou

Kapazoglou²,

Aravanopoulos

et al. 2015

Crop Breed. Appl. Biotechnol.

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“…lanatus) for use in the study of mode of inheritance of resistance to RKN (unpublished data). Additionally, grafting commercial watermelon cultivars onto resistant rootstocks has proved a successful approach in combating fungal and viral diseases where no resistance is known (Oda, 2002;Miguel et al, 2004;Cohen et al, 2007) and has become a widely accepted practice in Asia and in the Mediterranean region, including Israel and Turkey (Yetisir et al, 2007). Selected germplasm lines of C. lanatus var.…”

Section: Discussionmentioning

confidence: 99%

Resistance to Southern Root-knot Nematode (Meloidogyne incognita) in Wild Watermelon (Citrullus lanatus var. citroides)

Thies

Ariss

Kousik

et al. 2016

Journal of Nematology

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Southern root-knot nematode (RKN, Meloidogyne incognita) is a serious pest of cultivated watermelon (Citrullus lanatus var. lanatus) in southern regions of the United States and no resistance is known to exist in commercial watermelon cultivars. Wild watermelon relatives (Citrullus lanatus var. citroides) have been shown in greenhouse studies to possess varying degrees of resistance to RKN species. Experiments were conducted over 2 yr to assess resistance of southern RKN in C. lanatus var. citroides accessions from the U.S. Watermelon Plant Introduction Collection in an artificially infested field site at the U.S. Vegetable Laboratory in Charleston, SC. In the first study (2006), 19 accessions of C. lanatus var. citroides were compared with reference entries of Citrullus colocynthis and C. lanatus var. lanatus. Of the wild watermelon accessions, two entries exhibited significantly less galling than all other entries. Five of the best performing C. lanatus var. citroides accessions were evaluated with and without nematicide at the same field site in 2007. Citrullus lanatus var. citroides accessions performed better than C. lanatus var. lanatus and C. colocynthis. Overall, most entries of C. lanatus var. citroides performed similarly with and without nematicide treatment in regard to root galling, visible egg masses, vine vigor, and root mass. In both years of field evaluations, most C. lanatus var. citroides accessions showed lesser degrees of nematode reproduction and higher vigor and root mass than C. colocynthis and C. lanatus var. lanatus. The results of these two field evaluations suggest that wild watermelon populations may be useful sources of resistance to southern RKN.

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Introducing Grafted Cucurbits to Modern Agriculture: The Israeli Experience

Cited by 107 publications

References 7 publications

Graft incompatibility in plants: Metabolic changes during formation and establishment of the rootstock/scion union with emphasis on Prunus species

Graft incompatibility in plants: Metabolic changes during formation and establishment of the rootstock/scion union with emphasis on Prunus species

Global DNA methylation changes in Cucurbitaceae inter-species grafting

Resistance to Southern Root-knot Nematode (Meloidogyne incognita) in Wild Watermelon (Citrullus lanatus var. citroides)

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