Heat shock-induced resistance in strawberry against crown rot fungus Colletotrichum gloeosporioides

Widiastuti, Ani; Yoshino, Mioko; Saito, Harufumi; Maejima, Keisuke; Zhou, Songying; Odani, Hiromitsu; Narisawa, Kazuhiko; Hasegawa, Morifumi; Nitta, Youji; Satô, Tatsuo

doi:10.1016/j.pmpp.2013.08.003

Cited by 21 publications

(11 citation statements)

References 31 publications

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“…Heat shock (HS) reportedly triggers defensive responses against Colletotrichum gloeosporioides (Penz) Sacc. in strawberry [2], as well as against Botrytis cinerea Pers. (Bc) in melon [1] and cucumber [3].…”

Section: Introductionmentioning

confidence: 99%

Heat Shock-Induced Resistance against Pseudomonas syringae pv. tomato (Okabe) Young et al. via Heat Shock Transcription Factors in Tomato

et al. 2018

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We investigated the role of heat shock transcription factors (Hsfs) during induction of defense response by heat-shock treatment (HST) in tomato. Leaf disease symptoms were significantly reduced at 12 and 24 h after HST, consistent with upregulation of pathogenesis-related (PR) genes PR1a2 and PR1b1 peaking at 24 h after treatment. These genes were upregulated at the treatment application site, but not in untreated leaves. In contrast to HST, inoculation of the first leaf induced systemic upregulation of acidic PR genes in uninoculated second leaves. Furthermore, heat shock element motifs were found in upstream regions of PR1a2, PR1b1, Chitinase 3, Chitinase 9, Glucanase A, and Glucanase B genes. Upregulation of HsfA2 and HsfB1 peaked at 6 h after HST, 6 h earlier than salicylic acid accumulation. Foliar spray of heat shock protein 90 (Hsp90) inhibitor geldanamycin (GDA) induced PR gene expression comparable to that after HST. PR gene expression and defense response against Pseudomonas syringae pv. tomato (Pst) decreased when combining HST with Hsfs inhibitor KRIBB11. The Hsfs and PR gene expression induced by heat or GDA, together with the suppression of heat shock-induced resistance (HSIR) against Pst by KRIBB11, suggested a direct contribution of Hsfs to HSIR regulation in tomato.

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Section: Introductionmentioning

confidence: 99%

Heat Shock-Induced Resistance against Pseudomonas syringae pv. tomato (Okabe) Young et al. via Heat Shock Transcription Factors in Tomato

et al. 2018

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“…A more comprehensive study on plant photosynthetic response, antioxidant enzyme activities, and osmotic regulation in vegetable greenhouse condition is still lacking. While many studies reported the negative effects of heat stress [ 6 , 15 ], a few studies reported the positive effects of heat shock against plant insect (whitefly [ 16 ] Thrips tabaci [ 17 ]), or disease (strawberry crown rot [ 18 ], pepper and tomato powdery mildew [ 19 ], and sweet basil downy mildew [ 20 ]). For example, Sato and Kubo [ 21 ] reported a practical use of heat shock to reduce the need for fungicide application in downy mildew infested cucumber while performing a simple test on some chlorophyll fluorescence parameters changes.…”

Section: Introductionmentioning

confidence: 99%

Effects of Heat Shock on Photosynthetic Properties, Antioxidant Enzyme Activity, and Downy Mildew of Cucumber (Cucumis sativus L.)

et al. 2016

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Heat shock is considered an abiotic stress for plant growth, but the effects of heat shock on physiological responses of cucumber plant leaves with and without downy mildew disease are still not clear. In this study, cucumber seedlings were exposed to heat shock in greenhouses, and the responses of photosynthetic properties, carbohydrate metabolism, antioxidant enzyme activity, osmolytes, and disease severity index of leaves with or without the downy mildew disease were measured. Results showed that heat shock significantly decreased the net photosynthetic rate, actual photochemical efficiency, photochemical quenching coefficient, and starch content. Heat shock caused an increase in the stomatal conductance, transpiration rate, antioxidant enzyme activities, total soluble sugar content, sucrose content, soluble protein content and proline content for both healthy leaves and downy mildew infected leaves. These results demonstrate that heat shock activated the transpiration pathway to protect the photosystem from damage due to excess energy in cucumber leaves. Potential resistance mechanisms of plants exposed to heat stress may involve higher osmotic regulation capacity related to an increase of total accumulations of soluble sugar, proline and soluble protein, as well as higher antioxidant enzymes activity in stressed leaves. Heat shock reduced downy mildew disease severity index by more than 50%, and clearly alleviated downy mildew development in the greenhouses. These findings indicate that cucumber may have a complex physiological change to resist short-term heat shock, and suppress the development of the downy mildew disease.

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“…Widiastuti et al (2013b) found that hot water dipping of strawberry seedlings at 50°C for 20 s induced resistance against crown rot. This resistance could be induced systemically by partial treatment of leaves.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, this mode of action might have been responsible for the positive effects of heat treatment in previous studies. Widiastuti et al (2013b) also assumed the existence of heat shock-induced resistance (HSIR) that involves multiple modes of action, and SAR was one of the major elements of HSIR, although whether this is the mode of action in strawberry against powdery mildew is not yet known. Powdery mildew is one of the most serious pathogens in field crops.…”

Section: Introductionmentioning

confidence: 99%

Preventive Effect and Mode of Action of Repetitive Hot Water Spraying against Powdery Mildew in Strawberry

et al. 2018

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This study aimed to investigate the preventive effect of periodic hot water spraying against powdery mildew in strawberry as an alternative to chemical application as a protection method. Young upper leaves of 'Sachinoka' were dipped in hot water at 50°C for 20 s. Conidia of powdery mildew were inoculated 24 h after the treatment. The occurrence and growth rates of powdery mildew were apparently lower on leaves dipped in hot water than on those left untreated. Thus, resistance against powdery mildew was thought to be successfully induced by heat shock. Change in leaf temperature was tested using a prototype of a hot water sprayer at 57 ± 2°C. The resultant rise in temperature and temperature attained varied widely across the leaves. Nonetheless, the minimum requirement of a leaf temperature of 50°C in 10 s for inducing systemic resistance against crown rot could be attained in the treated plants. In this study, weekly hot water spraying treatments were conducted in 'Sachinoka' in 2008 and in 'Tochiotome' and 'Hitachi-hime' in 2009. In 2008, powdery mildew occurred explosively in the non-treated plants. However, its occurrence in plants treated with hot water spraying was less than that in the controls, but more than that after chemical application. In 2009, the occurrence rate was lower than that in the non-treated group of 2008 and extremely low after hot water spray treatment and chemical protection in both the varieties. Whether the difference in the occurrence of powdery mildew in both the years was because of the difference in environmental conditions or the difference between the varieties is not known. The plant height of 'Hitachi-hime' tended to become short after hot water spraying; however, no serious effects were noted on the growth and yield of strawberry plants. In conclusion, heat shock treatment by using hot water spraying can be considered an alternative method to chemical protection against mild powdery mildew incidence in strawberry.

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Heat shock-induced resistance in strawberry against crown rot fungus Colletotrichum gloeosporioides

Cited by 21 publications

References 31 publications

Heat Shock-Induced Resistance against Pseudomonas syringae pv. tomato (Okabe) Young et al. via Heat Shock Transcription Factors in Tomato

Heat Shock-Induced Resistance against Pseudomonas syringae pv. tomato (Okabe) Young et al. via Heat Shock Transcription Factors in Tomato

Effects of Heat Shock on Photosynthetic Properties, Antioxidant Enzyme Activity, and Downy Mildew of Cucumber (Cucumis sativus L.)

Preventive Effect and Mode of Action of Repetitive Hot Water Spraying against Powdery Mildew in Strawberry

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