Environmental effects on growth and sporulation of Fusarium spp. causing internal fruit rot in bell pepper

Frans, Mario; Aerts, Raf; Laethem, S. Van; Ceusters, Johan

doi:10.1007/s10658-017-1235-4

Cited by 17 publications

(17 citation statements)

References 41 publications

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“…In light of the above, it is obvious that the population structure of Fusarium species associated with pepper fruit rot (external or internal) in China is quite different from those in surveys from Canada and Belgium [4,8,10]. Although the underlying factors for species distribution are unknown, climatic conditions (such as the annual temperature weather and humidity), hosts and their rotation, and adaptive evolution have been reported to influence the distribution of Fusarium species [14,[26][27][28]. In view of the population genetic diversity and dispersal difference of the Fusarium pathogens, procedures for effective management of these pathogens on pepper are urgently needed.…”

Section: Isolation and Identification Of Fusarium Isolatesmentioning

confidence: 99%

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Species Composition and Toxigenic Potential of Fusarium Isolates Causing Fruit Rot of Sweet Pepper in China

Wang

Zhao

et al. 2019

Toxins

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Apart from causing serious yield losses, various kinds of mycotoxins may be accumulated in plant tissues infected by Fusarium strains. Fusarium mycotoxin contamination is one of the most important concerns in the food safety field nowadays. However, limited information on the causal agents, etiology, and mycotoxin production of this disease is available on pepper in China. This research was conducted to identify the Fusarium species causing pepper fruit rot and analyze their toxigenic potential in China. Forty-two Fusarium strains obtained from diseased pepper from six provinces were identified as F. equiseti (27 strains), F. solani (10 strains), F. fujikuroi (five strains). This is the first report of F. equiseti, F. solani and F. fujikuroi associated with pepper fruit rot in China, which revealed that the population structure of Fusarium species in this study was quite different from those surveyed in other countries, such as Canada and Belgium. The mycotoxin production capabilities were assessed using a well-established liquid chromatography mass spectrometry method. Out of the thirty-six target mycotoxins, fumonisins B1 and B2, fusaric acid, beauvericin, moniliformin, and nivalenol were detected in pepper tissues. Furthermore, some mycotoxins were found in non-colonized parts of sweet pepper fruit, implying migration from colonized to non-colonized parts of pepper tissues, which implied the risk of mycotoxin contamination in non-infected parts of food products.

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Section: Isolation and Identification Of Fusarium Isolatesmentioning

confidence: 99%

“…In addition to external fruit rot, internal rot of sweet pepper fruit is also a big problem in pepper production [14]. In contrast to the external pepper fruit rot, the fruit is infected internally by a fungus.…”

Section: Introductionmentioning

confidence: 99%

Species Composition and Toxigenic Potential of Fusarium Isolates Causing Fruit Rot of Sweet Pepper in China

Wang

Zhao

et al. 2019

Toxins

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“…In addition, Fusarium oxysporum can adjust its ambient pH depending on the amount of available carbon sources in the host tissue (Bi et al, 2016). These factors could potentially benefit IFR development, as FLASC has been reported to tolerate rather high acidity levels of pH 3 very well (Frans et al, 2017). Initially, the fungus develops a white-pinkish mycelium on the seeds, placenta and inner surface of the infected fruit.…”

Section: Introductionmentioning

confidence: 99%

“…carotovorum (Coplin, 1980;Snowdon, 1991;Fallik et al, 1999;González-Aguilar et al, 1999;Cerkauskas and Brown, 2001;Hadas et al, 2001;Singh et al, 2014). Internal fruit rot caused by FLASC can also be considered as another danger for long term storage of bell pepper (Frans et al, 2017). According to general practices, green peppers should be stored at appropriate temperatures between 7-13 • C and high relative humidity (RH) of 95 % to avoid above mentioned quality problems (Polderdijk et al, 1993;Cantwell, 1996;Sharma et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…For mature colored fruit, critical boundaries for acceptable fruit quality for Belgian actions lies between 7 and 20 • C although optimal temperatures for long term storage are between 8-16 • C for 10 d (Schenk, 2021) yet some cultivars can be even stored for 27 d (Maalekuu et al, 2003). The recommended storage temperature is also supposed to slow down mycelium outgrowth of FLASC as this pathogen has been characterized by a narrow temperature optimum around 25 • C with a strong reduction of mycelial growth in vitro at temperatures below 10 • C (Frans et al, 2017). However, cold storage (7− 16 • C) of naturally infected fruit with FLASC has previously been reported to be insufficient to inhibit symptom development of IFR (Sauviller et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Possibilities of modified atmosphere packaging to prevent the occurrence of internal fruit rot in bell pepper fruit (Capsicum annuum) caused by Fusarium spp

Frans

Aerts

Ceusters

et al. 2021

Postharvest Biology and Technology

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Bell pepper (Capsicum annuum L.), with its wide array of colors and flavors, plays an important role in many different cuisines around the world. Yet once harvested, it is a highly perishable fruit and needs appropriate postharvest handling. Recently, post-harvest internal rotting (IFR) by Fusarium lactis species complex isolates (FLASC), became an additional challenge to maintain shelf-life and quality of bell pepper fruit. Therefore, modified atmosphere packaging (MAP) was explored as a possible technique to postpone symptom development of infected bell peppers. Four artificially infected bell pepper cultivars with different susceptibility towards IFR were stored under MAP conditions for a maximum of 14 d at challenging conditions of 20 • C resembling unrefrigerated shelf life conditions. Each week, 5 fruit of each object were analyzed for IFR symptom development and additional physicochemical and quality parameters. For all cultivars, MAP packaged fruit showed less severe fungal proliferation compared to controls after 14 d. As total titratable acid (TA), total soluble solids (TSS) and vitamin C concentrations in fruit remained rather stable throughout the experiment, fungal development was likely to be postponed directly due to reduced oxygen levels in the pouches rather than a decreased host susceptibility by influencing fruit metabolism. Since no significant differences of disease development were observed between sensitive and less sensitive cultivars for both colors, sensitivity for IFR seems not likely to be caused by different post-harvest disease development patterns but rather by differences in the initial susceptibility for flower infection under normal growth conditions. Based on our results, MAP can indeed be considered a useful tool to ameliorate IFR development during post-harvest storage of bell pepper under conventional temperatures of 7− 16 • C.

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Importance of temperature in evaluating cotton for resistance to Fusarium wilt caused byFusarium oxysporumf. sp.vasinfectumrace 4

Zhang

Abdelraheem

Wheeler³

et al. 2021

Crop Science

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Fusarium wilt of cotton (Gossypium spp.) is caused by a soil‐ and seed‐borne fungal pathogen Fusarium oxysporum f. sp. vasinfectum (FOV). Fusarium oxysporum f. sp. vasinfectum race 4 (FOV4) is a significant threat to cotton production in the United States. The effect of temperature and soil on disease symptoms in cultivars with a range of susceptibility to FOV4 was examined in growth chamber trials. Three upland (G. hirsutum L.) and three pima (G. barbadense L.) cultivars were planted in three types of soils (potting mix and farm soils with and without FOV4 preinfestation) and maintained at four constant temperature regimes (20, 23, 26, and 29 °C). After seedling emergence, each pot was inoculated with conidial suspensions of FOV4 and scored for resistance based on disease incidence (DI), foliar disease severity rating (DSR), and mortality rate (MR) at 7, 14, 21, and 28 d post‐inoculation (dpi). The area under the disease progress curve (AUDPC) based on DSR across the four evaluation dpi was also analyzed. Among the six cultivars tested, Pima PHY 841 RF, Pima S‐6, and the uplands Acala 1517‐08 and FM 2334GLT were the most resistant, whereas upland PHY 725 RF and Pima S‐7 were the most susceptible. The genotypic responses to FOV4 were not significantly (P > .05) affected by differences in temperature regime or soil type. Cotton seedlings manifested more severe symptoms and higher mortality when maintained at 23 °C, followed by 20/26 °C and 29 °C in descending order. The mycelial growth rate was greater at 23/26 °C, whereas plants grew slower at 20/23 °C. There were no differences (P > .05) in DI, DSR, MR, and AUDPC between the inoculated farm soil (with no FOV4 preinfestation) and the inoculated FOV4‐preinfested farm soil, suggesting the unnecessity of using the latter in artificial inoculations. However, the potting soil produced higher (P < .05) DI and DSR at 7 and 14 dpi but lower (P < .05) AUDPC. This growth chamber study demonstrated that 23 °C produced the highest DI, severity, and plant death, providing an important piece of information for screening cotton for FOV4 resistance in breeding and FOV4 disease management in cotton production.

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Environmental effects on growth and sporulation of Fusarium spp. causing internal fruit rot in bell pepper

Cited by 17 publications

References 41 publications

Species Composition and Toxigenic Potential of Fusarium Isolates Causing Fruit Rot of Sweet Pepper in China

Species Composition and Toxigenic Potential of Fusarium Isolates Causing Fruit Rot of Sweet Pepper in China

Possibilities of modified atmosphere packaging to prevent the occurrence of internal fruit rot in bell pepper fruit (Capsicum annuum) caused by Fusarium spp

Importance of temperature in evaluating cotton for resistance to Fusarium wilt caused byFusarium oxysporumf. sp.vasinfectumrace 4

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