Induction of H2O2and related enzymes in tomato roots infected with root knot nematode (M.javanica) by several chemical and microbial elicitors

Sahebani, Navazollah; Hadavi, N.

doi:10.1080/09583150902752012

Cited by 46 publications

(30 citation statements)

References 34 publications

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“…They also showed that the H 2 O 2 which is involved in the biphasic oxidative burst is the production of the defense response of A. thaliana against H. glycines. Sahebani and Hadavi (2009) also showed two distinct phase in H 2 O 2 accumulation in tomato infected roots with root-knot nematode treated with several chemical and microbial elicitors (BABA, SA and p. fluorscens CHA0). They showed a moderate but transient increase during the first phase early after nematode inoculation and a second but much larger increase at 5 days after treatment.…”

Section: Discussionmentioning

confidence: 99%

“…Over the last 30 years, a number of chemical compounds have been shown to increase disease resistance of plants. Salicylic acid (SA), and its functional analogs [isonicotinic acid (INA), benzothidiazoles (BTH)] and b-amino-n-butyric acid (BABA) are among the most thoroughly studied compounds for inducing disease resistance (Gorlach et al 1996;He and Wolyn 2005;Sahebani and Hadavi 2009). These compounds activate resistance in many crops against plant diseases that are incited by a variety of pathogens including, fungi, bacteria, viruses, and nematodes (Kessmann et al 1994;Cohen 1994;Oostendorp and Seikora 1990).…”

Section: Introductionmentioning

confidence: 99%

“…This leads to the consideration of BABA as an accelerator of the SA response pathway. The effects of BABA, Salicylic acid (SA), and Pseudomonas fluorecens CHAO on H 2 O 2 generation and activity of the enzymes related to its metabolism, i.e., superoxide dismutase (SOD), guaiacol peroxidase (GPOX), and catalase (CAT) were investigated in tomato roots infected with root-knot nematode (M. javanica) by Sahebani and Hadavi (2009). They showed that BABA has reduced the nematode infection level, H 2 O 2 accumulation and the SOD and GPOX activities more than the other tested elicitors.…”

Section: Introductionmentioning

confidence: 99%

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The effects of β-amino-butyric acid on resistance of cucumber against root-knot nematode, Meloidogyne javanica

2010

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In this study, the effects of b-amino-butyric acid (BABA) on root-knot nematode(Meloidogyne javanica) infection of cucumber and accumulation of total phenolic compounds, hydrogen peroxide and activity of some enzymes related to plant defense mechanisms, i.e., guaiacol peroxidase (GPOX), polyphenol oxidase (PPO), catalase (CAT) in cucumber roots infected with nematode were investigated. Results of this study show that treating the cucumber seedlings with the above elicitor significantly reduces the nematode infection level (the nematode galls, number of egg masses per plant and number of eggs per individual egg mass) compared to control. Additionally, treatment of cucumber roots by BABA and BABA ? nematode, significantly increased peroxidase, polyphenol oxidase and catalase activities in root tissues, 1 day after nematode inoculation in comparison to nematode inoculated plants as control and sterile water-treated plants. Enzyme activities reached to a maximum level at 4, 4 and 3 days after nematode inoculation, respectively. Additionally, the amount of H 2 O 2 , a product of oxidative stress, was significantly increased in the BABA and BABA ? nematode treatments in comparison to control. Such increases have occurred in two phases and maximum levels of it were observed at 5 days after inoculation. Inoculation of cucumber plants by BABA also significantly increased accumulation of total phenol in comparison to control and maximum level of it was observed at 7 days after nematode inoculation. The results suggest that the inhibitory effect of BABA on the root-knot nematode (M. javanica) may be related to its ability to enhance defense responses in the cucumber roots.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The effects of β-amino-butyric acid on resistance of cucumber against root-knot nematode, Meloidogyne javanica

2010

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“…SAR is associated with increasing SA level by generating reactive oxygen species (ROS), enhancing activities of superoxide dismutase (SOD) and guaiacol peroxidase (GPOX), phytoalexin biosynthesis, accumulation of pathogenesis-related (PR) proteins (Pieterse and Van Loon 2007;Sahebani and Hadavi 2009;Molinari et al 2014). Recent study reported that chemical and microbial elicitors such as -aminobutyric acid (BABA), Salicylic acid (SA), and Pseudomonas fluorecens CHAO significantly reduced the RKN infection in tomato seedlings (Sahebani andHadavi 2009). Herman et al (2007) found that acibenzolar-S-methyl (ASM)-induced larger number of defense genes during second application compared to first application, indicating earlier induction of resistance genes does not negotiate the capability of the plant to react on later inductions.…”

Section: Systemic Acquired Resistance (Sar)mentioning

confidence: 99%

How Durable is Root Knot Nematode Resistance in Tomato?

Rashid¹,

Al-Mamun²,

Uddin³

2017

Plant Breed. Biotech.

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Among the plant parasitic nematodes, root knot nematode (RKN) is the most devastating in tomato growing regions. Controlling RKN mostly relies on nematicides. Since chemical application is limited due to adverse environmental effect, alternative approaches are required. Although there are some alternatives, but resistance cultivars are getting popularity in the farmer's field because of simplicity, cost-effective and environment safety. Genes conferring resistance to RKN have already been identified followed by the introgression into elite cultivars. Currently, natural resistance genes (R genes) are used in conventional breeding programmes. Simultaneously, molecular research is going on to characterize and map the linked markers for the detected resistant phenotypes. Currently, it is a prominent threat to maintain the durability of existing R genes. However, durability of host resistance govern by co-evolution of resistance genes from plants and (a)virulence genes from nematodes. So, understanding the mechanisms underlying co-evolution is essential for the durability of R genes. Here we review the existing potential natural resistance in tomato against RKN, currently used resistance mechanisms between RKN and tomato, influential factors of durability of natural resistance genes and opportunity to get more durable resistance in tomato.

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“…Using a hoemocytometer, the inoculum concentration was adjusted to 10 7 conidia per milliliter. Tomato seedlings of 'Early Urbuna Y' as a susceptible cultivar (Sahebani and Hadavi 2009) were inoculated at the 3rd-4th true leaf stage. These tomato seedlings were uprooted and inoculated by using the root-dip technique.…”

Section: Pathogenicity Testmentioning

confidence: 99%

Biological Control of Tomato Verticillium Wilt Disease by Talaromyces Flavus

Naraghi¹,

Heydari²,

Rezaee³

et al. 2010

Journal of Plant Protection Research

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For comparison of the infection index in treatments, the greenhouse experiment was performed with a split plot arranged in a randomized complete block design with four replications. Result of greenhouse experiments on different types of T. flavus treatments indicated that there was no significant difference among them. However, among five T. flavus isolates, the most effective one was Tf-To-V-24 and Tf-To-U-36. In the experiment on the interaction between different T. flavus treatments and T. flavus isolates, a minimum infection index was observed when both soil and seed were treated with Tf-To-V-31. The overall results of this study show that it may be possible to manage tomato Verticillium wilt disease effectively by T. flavus.

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Induction of H₂O₂and related enzymes in tomato roots infected with root knot nematode (M.javanica) by several chemical and microbial elicitors

Cited by 46 publications

References 34 publications

The effects of β-amino-butyric acid on resistance of cucumber against root-knot nematode, Meloidogyne javanica

The effects of β-amino-butyric acid on resistance of cucumber against root-knot nematode, Meloidogyne javanica

How Durable is Root Knot Nematode Resistance in Tomato?

Biological Control of Tomato Verticillium Wilt Disease by Talaromyces Flavus

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