Grafting improves salinity tolerance of bell pepper plants during greenhouse production

Orosco-Alcalá, Blanca E.; Núñez-Palenius, Héctor G.; Díaz-Serrano, Fidel René; Pérez-Moreno, Luis; Valencia-Posadas, Mauricio; Trejo-Téllez, Libia Iris; Cruz-Huerta, Nicacio; Valiente-Banuet, Juan I.

doi:10.1007/s13580-021-00362-x

Cited by 12 publications

(6 citation statements)

References 56 publications

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“…Tanveer et al [ 49 ] described several deformations and attributes of growth including length, weight, number, width, wet and dry weight of leaves, roots, stem, and flowers in leafy vegetables, especially in spinach plants that are affected by saline conditions [ 50 – 52 ]. More prominently, the reduction of growth rate in leaf ( Fig 7 ) and root cells as compared to leaves was detected, as the maintenance of osmotic stress is more important for root cells for, they absorb essential minerals and water for plant growth [ 53 , 54 ].…”

Section: Discussionmentioning

confidence: 99%

Silicon fertilization counteracts salinity-induced damages associated with changes in physio-biochemical modulations in spinach

Naz

Zaman²,

Nazir³

et al. 2022

PLoS ONE

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Plant growth and productivity are limited by the severe impact of salt stress on the fundamental physiological processes. Silicon (Si) supplementation is one of the promising techniques to improve the resilience of plants under salt stress. This study deals with the response of exogenous Si applications (0, 2, 4, and 6 mM) on growth, gaseous exchange, ion homeostasis and antioxidant enzyme activities in spinach grown under saline conditions (150 mM NaCl). Salinity stress markedly reduced the growth, physiological, biochemical, water availability, photosynthesis, enzymatic antioxidants, and ionic status in spinach leaves. Salt stress significantly enhanced leaf Na+ contents in spinach plants. Supplementary foliar application of Si (4 mM) alleviated salt toxicity, by modulating the physiological and photosynthetic attributes and decreasing electrolyte leakage, and activities of SOD, POD and CAT. Moreover, Si-induced mitigation of salt stress was due to the depreciation in Na+/K+ ratio, Na+ ion uptake at the surface of spinach roots, and translocation in plant tissues, thereby reducing the Na+ ion accumulation. Foliar applied Si (4 mM) ameliorates ionic toxicity by decreasing Na+ uptake. Overall, the results illustrate that foliar applied Si induced resistance against salinity stress in spinach by regulating the physiology, antioxidant metabolism, and ionic homeostasis. We advocate that exogenous Si supplementation is a practical approach that will allow spinach plants to recover from salt toxicity.

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Section: Discussionmentioning

confidence: 99%

Silicon fertilization counteracts salinity-induced damages associated with changes in physio-biochemical modulations in spinach

Naz

Zaman²,

Nazir³

et al. 2022

PLoS ONE

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“…Under such conditions, the plant's energy and resources may have been redirected towards defense mechanisms to combat the disease, which could have resulted in a reduction in the shoot and root dry weights. This observation is similar to the findings of the experiments conducted by Jang et al [58] and Orosco et al [59].…”

Section: Discussionsupporting

confidence: 93%

Grafting Bell Pepper onto Local Genotypes of Capsicum spp. as Rootstocks to Alleviate Bacterial Wilt and Root-Knot Nematodes under Protected Cultivation

Naik,

Hongal,

Hanchinamani

et al. 2024

Agronomy

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In soil-based protected cultivation, the prevalence of certain diseases like bacterial wilt and nematodes in the bell pepper plant due to its successive cropping pose a threat for maximizing productivity. Considering the potential of grafting to alleviate various biotic and abiotic stresses, often relying on rootstock’s capability, we explored the potential of diverse local genotypes of Capsicum spp. to utilize as rootstocks. In this research, we assessed the performance of a commercial bell pepper cv. Massilia F1, grafted onto twenty-five rootstocks along with non-grafted and self-grafted Massilia plants under artificial inoculation conditions of bacterial wilt (Ralstonia solanacearum) and nematodes (Meloidogyne incognita) in a plastic greenhouse. The response of rootstock grafting was determined by assessing disease incidences and their effect on plants growth, yield, and physiology, as well as their efficiency in nutrient accumulation. The grafted plants exhibited varied responses to diseases depending on rootstock genotypes. Notably, Massilia grafted onto the CRS-8 and CRS-1 rootstocks exhibited high bacterial wilt resistance by showing lower percent disease incidence (PDI) (22.22 and 27.78 percent, respectively). Others, like CRS-11, CRS-12, CRS-13, CRS-21, and CRS-24, showed moderate resistance (PDI ranging from 33.33 to 38.89 percent, respectively). The self-grafted and non-grafted plants were highly susceptible and recorded complete mortality by the end of the experiment. All of the grafted plants exhibited promising resistance against nematode infestation compared to non-grafted and self-grafted plants with 26.17 and 8.67 percent root galls, respectively. The susceptible plants had lower shoot and root dry weights, while the resistant graft combinations had comparatively higher biomass. Importantly, grafting induced earliness in flowering and provided higher yields, especially in graft combinations involving the CRS-15, CRS-11, and CRS-8 rootstocks. These graft combinations exhibited significantly higher yields over the non-grafted and self-grafted plants. The plant yield was positively associated with plant height, number of leaves, fresh and dry weight of roots, number of fruits per plant, and average fruit weight, but negatively related to bacterial wilt and root-knot nematode incidences. The increased level of antioxidant enzymes such as polyphenol oxidase (PPO), phenylalanine ammonia lyase (PAL), and peroxidase (POD) and the higher total chlorophyll content in the resistant grafted plants indicates their better ability to cope with diseases at the cellular level. This study highlights the robust performance of certain rootstocks from Capsicum annuum (CRS-1, CRS-2, CRS-11, CRS-15) and Capsicum frutescens (CRS-8, CRS-13, CRS-22) species across multiple measured parameters. Grafting emerges as a sustainable solution for bell pepper production in bacterial wilt- and nematode-infested soil under plastic greenhouses.

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“…Grafting is the main way to propagate horticultural crops and affects plant tolerance to various stresses, including drought 13 , salinity 14 , and heavy metals (HM) 15 . Certain rootstocks can protect scions from HM toxicity by inhibiting or restricting HM ion transport 16 .…”

Section: Background and Summarymentioning

confidence: 99%

Rootstock–scion interaction affects Malus transcriptome profiles in response to cadmium

et al. 2023

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Apple production is threatened by cadmium contamination in orchards. Cd accumulation and tolerance in grafted Malus plants is affected by rootstock, scion, and their interaction. This dataset is part of an experiment investigating the molecular mechanism of Cd bioaccumulation and tolerance in different apple rootstock-scion combinations. We exposed four rootstock–scion combinations to Cd treatment consisting of Hanfu and Fuji apple (Malus domestica) scions grafted onto apple rootstocks of M. baccata or M. micromalus “qingzhoulinqin”. RNA sequencing was conducted in roots and leaves of grafting combinations under 0 or 50 μM CdCl2 conditions. A comprehensive transcriptional dataset of affected rootstock, scion, and their interaction among different graft combinations was obtained. This dataset provides new insights in the transcriptional control of Cd bioaccumulation and tolerance in grafting plants regulated by rootstock and scion. Herein, we discuss the molecular mechanism underlying Cd absorption and bioaccumulation.

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Grafting improves salinity tolerance of bell pepper plants during greenhouse production

Cited by 12 publications

References 56 publications

Silicon fertilization counteracts salinity-induced damages associated with changes in physio-biochemical modulations in spinach

Silicon fertilization counteracts salinity-induced damages associated with changes in physio-biochemical modulations in spinach

Grafting Bell Pepper onto Local Genotypes of Capsicum spp. as Rootstocks to Alleviate Bacterial Wilt and Root-Knot Nematodes under Protected Cultivation

Rootstock–scion interaction affects Malus transcriptome profiles in response to cadmium

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