The Disease: Powdery Mildew

Saharan, Govind Singh; Mehta, Naresh; Meena, Prabhu Dayal

doi:10.1007/978-981-13-9853-7_2

Cited by 5 publications

(5 citation statements)

References 32 publications

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“…On this basis, the physiological metabolism and expression of related genes were measured. Researchers found that powdery mildew led to premature senescence and reduced the photosynthesis in leaves [ 32 ]. This is mainly because the hyphae coverage reduces the functional leaf area and decreases the assimilation rate of the remaining leaf area [ 33 ], and limits the leaf gas exchange [ 34 ].…”

Section: Discussionmentioning

confidence: 99%

Foliar Silicon Spray before Summer Cutting Propagation Enhances Resistance to Powdery Mildew of Daughter Plants

Xiao

Jeong

2022

IJMS

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Silicon (Si) has beneficial effects on not only plant growth but also against biotic and abiotic stresses. However, a few studies focus on how Si application helps strawberry (Fragaria × ananassa Duch.) resist powdery mildew. The aim of this work was to find out the optimal Si application method before cutting propagation to enhance the resistance to powdery mildew in strawberry “daughter” plants. Naturally infected “mother” plants of ‘Sulhyang’, ‘Maehyang’, and ‘Kuemsil’ strawberries were supplied with Si. Potassium silicate (K2SiO3) at a final concentration of 75 mg·L−1 Si was either added to the medium for drenching or sprayed to the leaves of the “mother” or “daughter” plant, or soluble Si fertilizer was used to dress the “mother” plant. The Si application significantly increased the shoot fresh weight of the “daughter” plants. Supplemental Si also increased the contents of phosphorus (P), potassium (K), and magnesium (Mg). In addition, the Si treatment decreased the damage of powdery mildew by increased level of proline content and suppressive reactive oxygen species. After applying Si, the length and density of hyphae on the leaf surface decreased. In addition, the infected area of “daughter” plant leaves covered with powdery mildew decreased. This study also demonstrated that Si increased the expression of resistance-gene and decreased the expression of susceptibility-gene of strawberry. Overall, Si application promoted the growth of the “daughter” plants regardless of the application method. Direct foliar Si spray to the “daughter” plants before cutting propagation is recommended to increase their resistance to powdery mildew.

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Section: Discussionmentioning

confidence: 99%

Foliar Silicon Spray before Summer Cutting Propagation Enhances Resistance to Powdery Mildew of Daughter Plants

Xiao

Jeong

2022

IJMS

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“…Approximately 95% of turnips and swedes grown in the UK are covered by nets for pest protection (DEFRA, 2011 ). Although plastic nets generally reduce disease, poor air circulation under the nets increases the risk of Alternaria (Saharan et al, 2019 ). Within the UK, plastic covers in potato production are primarily used to induce soil warming with the aim of producing earlier and higher yields.…”

Section: The Positive Impacts Of the Increasing Use Of Plasticulture ...mentioning

confidence: 99%

Sustainable production of healthy, affordable food in theUK: The pros and cons of plasticulture

Cusworth

Davies

McAinsh

2022

Food and Energy Security

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An evolving green agenda as the UK seeks to achieve 'net zero' in greenhouse gas emissions by 2050, coupled with our new trading relationship with the European Union, is resulting in new government policies, which will be disruptive to Britain's traditional food and farming practices. These policies encourage sustainable farming and land-sparing to restore natural habitats and will provide an opportunity to address issues such as high emissions of GHGs and dwindling biodiversity resulting from many intensive agricultural practices. To address these

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“…Powdery mildew (PM) fungi are biotrophic pathogens that grow superficially on living host plants, coating the leaves, stems and fruits with spores and mycelia [ 1 , 2 ]. Cruciferous plant-specific PM disease caused by the pathogen Erysiphe cruciferarum is expanding year by year in various Brassica plants, especially rapeseed ( Brassica napus L.), which is the second-largest oilseed crop in the world as well as a vegetable plant in East Asia.…”

Section: Introductionmentioning

confidence: 99%

“…Cruciferous plant-specific PM disease caused by the pathogen Erysiphe cruciferarum is expanding year by year in various Brassica plants, especially rapeseed ( Brassica napus L.), which is the second-largest oilseed crop in the world as well as a vegetable plant in East Asia. PM is the fourth most important disease causing heavy losses to rapeseed and is widely distributed over more than 25 countries around the world [ 1 , 2 ]. Growing disease-resistant varieties is an environmentally friendly and cost-effective strategy to control PM disease.…”

Section: Introductionmentioning

confidence: 99%

“…For example, cuticular wax acts as an important physical barrier to prevent fungi from entering the host cell [ 3 ], especially to PM, which grows superficially on plants [ 1 , 2 ]. Moreover, the host will show a series of immune responses including the accumulation of reactive oxygen species (ROS), H 2 O 2 , callose (β-1,3 glucan), pectin, cellulose and cuticular wax; the formation of papilla; the overexpression of resistance (R) genes and pathogenesis-related proteins; the phosphorylation of various kinases; the triggering of hypersensitive responses (HR); and the induction of systemic acquired resistance (SAR) [ 1 ]. The innate immune responses are controlled by pattern-triggered immunity (PTI) and effector-triggered immunity (ETI) [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

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Microscopic and Transcriptomic Comparison of Powdery Mildew Resistance in the Progenies of Brassica carinata × B. napus

Zhang

Gong

et al. 2022

IJMS

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Powdery mildew is a widespread disease in rapeseed due to a lack of resistant germplasm. We compared the foliar epidermal features and transcriptomic responses between the resistant (R) and susceptible (S) plants among the two parents and progenies of Brassica carinata × B. napus. The amount of cuticular wax and callose deposition on the R plants was much lower than that on the S plants; hence, these chemicals are not all essential to pre-penetration resistance, although the cuticular wax on the R plants had more needle-like crystals. A total of 1049 genes involved in various defense responses were expressed differentially among the R/S plants. The expression levels of two well-known susceptibility genes, MLO6 and MLO12, were much lower in the R plant, indicating an important role in PM resistance. A set of genes related to wax biosynthesis (KCS6, LACS2, CER and MAH1), cell wall modification (PMR5, PMEI9, RWA2, PDCB1 and C/VIF2), chloroplast function (Chlorophyllase-1, OEP161, PSBO1, CP29B and CSP41b), receptor kinase activity (ERECTA, BAK1, BAM2, LYM1, LYM3, RLK902, RLP11, ERL1 and ERL2), IPCS2, GF14 lambda, RPS4 and RPS6 were highly expressed in the R plants. In the S plants, most highly expressed genes were involved in later defense responses, including CERK1, LYK4, LIK1, NIMIN-1, CHITINASE 10, PECTINESTERASE, CYP81F2 and RBOHF and the genes involved in salicylic acid-dependent systemic acquired resistance and hypersensitive responses, indicating the occurrence of severe fungal infection. The results indicate that some uncertain pre-penetration defenses are pivotal for high resistance, while post-penetration defenses are more important for the S plant survival.

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The Disease: Powdery Mildew

Cited by 5 publications

References 32 publications

Foliar Silicon Spray before Summer Cutting Propagation Enhances Resistance to Powdery Mildew of Daughter Plants

Foliar Silicon Spray before Summer Cutting Propagation Enhances Resistance to Powdery Mildew of Daughter Plants

Sustainable production of healthy, affordable food in theUK: The pros and cons of plasticulture

Microscopic and Transcriptomic Comparison of Powdery Mildew Resistance in the Progenies of Brassica carinata × B. napus

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