Induced systemic resistance in tomato by non-pathogenic<i>Fusarium</i>species for the management of<i>Fusarium</i>wilt

Patil, S. J.; Sriram, S.; Savitha, M. J.; Arulmani, N.

doi:10.1080/03235408.2010.526774

Cited by 12 publications

(12 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…; mycorrhizal fungi, like Rhizophagus irregularis (syn. Glomus intraradices ) and P. indica ; and non-pathogenic races of Fusarium oxysporum ( Segarra et al, 2009 ; Zhang et al, 2009 ; Patil et al, 2011 ; Pieterse et al, 2012 , 2014 ; Alizadeh et al, 2013 ; Zamioudis et al, 2014 , 2015 ; Zhao et al, 2014 ; Pii et al, 2016b ; Martínez-Medina et al, 2017 ; Verbon et al, 2017 ). In the case of mycorrhizal fungi, the enhanced defensive capacity provoked by them is also named MIR (“Mycorrhiza-Induced Resistance”) and can favor P acquisition ( Jung et al, 2012 ; Cameron et al, 2013 ).…”

Section: Rhizosphere Microbial Species That Induce Fe Deficiency Respmentioning

confidence: 99%

Induced Systemic Resistance (ISR) and Fe Deficiency Responses in Dicot Plants

et al. 2019

View full text Add to dashboard Cite

Plants develop responses to abiotic stresses, like Fe deficiency. Similarly, plants also develop responses to cope with biotic stresses provoked by biological agents, like pathogens and insects. Some of these responses are limited to the infested damaged organ, but other responses systemically spread far from the infested organ and affect the whole plant. These latter responses include the Systemic Acquired Resistance (SAR) and the Induced Systemic Resistance (ISR). SAR is induced by pathogens and insects while ISR is mediated by beneficial microbes living in the rhizosphere, like bacteria and fungi. These root-associated mutualistic microbes, besides impacting on plant nutrition and growth, can further boost plant defenses, rendering the entire plant more resistant to pathogens and pests. In the last years, it has been found that ISR-eliciting microbes can induce both physiological and morphological responses to Fe deficiency in dicot plants. These results suggest that the regulation of both ISR and Fe deficiency responses overlap, at least partially. Indeed, several hormones and signaling molecules, like ethylene (ET), auxin, and nitric oxide (NO), and the transcription factor MYB72, emerged as key regulators of both processes. This convergence between ISR and Fe deficiency responses opens the way to the use of ISR-eliciting microbes as Fe biofertilizers as well as biopesticides. This review summarizes the progress in the understanding of the molecular overlap in the regulation of ISR and Fe deficiency responses in dicot plants. Root-associated mutualistic microbes, rhizobacteria and rhizofungi species, known for their ability to induce morphological and/or physiological responses to Fe deficiency in dicot plant species are also reviewed herein.

show abstract

Section: Rhizosphere Microbial Species That Induce Fe Deficiency Respmentioning

confidence: 99%

Induced Systemic Resistance (ISR) and Fe Deficiency Responses in Dicot Plants

et al. 2019

View full text Add to dashboard Cite

show abstract

“…2C). Previous studies have shown that pathogen resistance of plants can be induced by F. oxysporum and F. fujikuroi (Patil et al, 2011;Veloso & Díaz, 2012). Interestingly, under natural conditions, the abundance of F. oxysporum and F. fujikuroi on healthy leaves was significantly higher than that of C. gloeosporioides infected leaves (Fig.…”

Section: Fujikuroimentioning

confidence: 79%

“…JA signaling involves some genes encoding defense-related proteins, such as defensin (Tiwari et al, 2017;Sarkar, Jana & Sikdar, 2017;Brown et al, 2003). Previous studies have shown that non-pathogenic F. oxysporum and F. fujikuroi induce up-regulated PR1 genes expression (Veloso & Díaz, 2012) and activities of chitinase and β-1,3-glucanase (Fuchs, Moënne-Loccoz & Défago, 1997;Patil et al, 2011) and improve pathogen resistance of plant hosts. However, our results showed that, in contrast to the control, although F. oxysporum and F. fujikuroi alone and in mixture induced significantly higher SA contents in leaves of I. cairica (Fig.…”

Section: Fujikuroimentioning

confidence: 99%

“…However, it was reported that the isolates of F. fujikuroi and F. oxysporum were entirely nonpathogenic and avirulent to their hosts, such as A.comosus (Dianese et al, 1981), O. sativa (Choi et al, 2018;Amatulli et al, 2010) and Glycine max (Lanubile et al, 2015). It is known that many pathogenic and nonpathogenic F. oxysporum or F. fujikuroi isolates elicited the systemic acquired resistance (SAR) or induced systemic resistance (ISR) of their plant hosts to confer resistance against a broad spectrum of pathogens (Patil et al, 2011;Veloso & Díaz 2012;Miyaji et al, 2017;Matić et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Epiphytic fungi induced pathogen resistance of invasive plant Ipomoea cairica against Colletotrichum gloeosporioides

Hua

Zhu

et al. 2019

Preprint

View full text Add to dashboard Cite

Background. Ipomoea cairica (L.) Sweet is a destructive invasive weed in South China but rarely infected with pathogens in nature. Its pathogen resistance mechanism is largely unknown at present. Some non-pathogenic isolates of Fusarium oxysporum and Fusarium fujikuroi are prevalent on many plant species and function as pathogen resistance inducers of host plants. The objective of the present research is to investigate whether the symbiosis between the both fungi and I. cairica is present, and thereby induce pathogen resistance of I. cairica. Methods. Through field investigation, we explored the occurrence rates of F. oxysporum and F. fujikuroi on leaf surfaces of I. cairica plants in natural habitats and compared their abundance between healthy leaves and leaves infected with Colletotrichum gloeosporioides, a natural pathogen. With artificial inoculation, we assessed their pathogencity to I. cairica and study their contribution of pathogen resistance to I. cairica against C. gloeosporioides. Results. We found that F. oxysporum and F. fujikuroi were widely epiphytic on healthy leaf surfaces of I. cairica in sunny non-saline, shady non-saline and sunny saline habitats. Their occurrence rates reached up to 100%. Moreover, we found that the abundance of F. oxysporum and F. fujikuroi on leaves infected with C. gloeosporioides were significantly lower than that of healthy leaves. With artificial inoculation, we empirically confirmed that F. oxysporum and F. fujikuroi were non-pathogenic to I. cairica. It was interesting that colonization by F. fujikuroi, F. oxysporum alone and a mixture of both fungi resulted in a reduction of C. gloeosporioides infection to I. cairica accompanied by lower lesion area to leaf surface area ratio, increased H2O2 concentration and salicylic acid (SA) level relative to the control. However, NPR1 expression, chitinase and β -1,3-glucanase activities as well as stem length and biomass of I. cairica plant only could be significantly improved by F. oxysporum and a mixture of both fungi but not by F. fujikuroi. In addition, as compared to colonization by F. oxysporum and a mixture of both fungi, F. fujikuroi induced significantly higher jasmonic acid (JA) level but significantly lower β -1,3-glucanase activity in leaves of I. cairica plants. Thus, our findings indicated the symbiosis of epiphytic fungi F. fujikuroi and F. oxysporum facilitated the fitness of I. cairica via the induced systemic resistance of host plant against C. gloeosporioides. F. oxysporum played a dominant role in inducing pathogen resistance of I. cairica. Its presence alleviated the antagonism of the JA signaling on SA-dependent β -1,3-glucanase activity and enabled I. cairica plants to maintain relatively higher level of resistance against C. gloeosporioides.

show abstract

“…The flasks were incubated at 25±2°C for 10 days. The cultures of fungi were harvested by filtration using Buchner funnel and washed thoroughly with distilled water Patil et al (2011). The fresh weights of the mycelia were determined as milligram.…”

Section: Effect Of the Antioxidants On Fungicide Activitymentioning

confidence: 99%

Effects of Combination of Diniconazole Fungicide with Antioxidants on Vital Ingredients of Certain Fungi

Ibrahim

2019

Annals of Agricultural Science, Moshtohor

View full text Add to dashboard Cite

The main objective of this study is to evaluate addition of some antioxidants to diniconazole fungicide on the three isolated fungi, i.e., Alternaria alternata, Fusarium graminearum and Pyrenophora tritici-repentis. Three antioxidants, i.e., selenium at 5ppm, butylated hydroxyanisole at 50ppm and ascorbic acid at 100ppm were combined with different concentrations of diniconazole, 0.1, 0.5, 1, 3 and 5ppm, in Potato Dextrose Broth (PDB) medium. The vital ingredients, i.e., fresh weight, total carbohydrates, lipids and proteins of the fungi were determined. The results clearly indicated that fungicide-antioxidant mixtures decreased the vital ingredients of the tested fungi more effectively than the fungicide or antioxidants applied alone. Regardless the isolated fungi, the percent reduction of any of the vital ingredients followed the order; Se < BHA < AsA. These effects increased with increasing the concentration of the fungicide in culture medium. This means that antioxidants, especially selenium, enhanced the fungitoxic activity of diniconazole against the isolated fungi.

show abstract

Induced systemic resistance in tomato by non-pathogenicFusariumspecies for the management ofFusariumwilt

Cited by 12 publications

References 21 publications

Induced Systemic Resistance (ISR) and Fe Deficiency Responses in Dicot Plants

Induced Systemic Resistance (ISR) and Fe Deficiency Responses in Dicot Plants

Epiphytic fungi induced pathogen resistance of invasive plant Ipomoea cairica against Colletotrichum gloeosporioides

Effects of Combination of Diniconazole Fungicide with Antioxidants on Vital Ingredients of Certain Fungi

Contact Info

Product

Resources

About