Plantas daninhas como hospedeiras alternativas para Pratylenchus brachyurus

Braz, Guilherme Braga Pereira; Oliveira, Rubem Silvério de; Constantin, Jamil; Raimondi, Ricardo Travasso; Ribeiro, L. M.; Gemelli, Alexandre; Takano, Hudson Kagueyama

doi:10.1590/0100-5405/2129

Cited by 18 publications

(18 citation statements)

References 8 publications

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“…Similar result was recorded for C. juncea, which allowed reducing M. javanica populations (Inomoto et al, 2008;Miamoto et al, 2016), although it was not efficient in controlling P. brachyurus (Braz et al, 2016). It is worth highlighting that C. juncea recorded different RFs for different P. brachyurus populations; populations from Goiás State presented RF = 2.16 (Braz et al, 2016), those from Rio de Janeiro State recorded RF = 1.13, and populations from Mato Grosso State recorded 4.27 (Machado et al, 2007). Thus, it is common for antagonist plants to present varying reactions when they are exposed to a specific nematode genus, species or population; at first, such variation may appear to be more prominent in nematodes with migratory feeding habit.…”

Section: Discussionsupporting

confidence: 81%

“…'IAPAR 43', which enabled Meloidogyne ethiopica Whitehead and R. reniformis control (Lima et al, 2009;Gardiano et al, 2012). Similar result was recorded for C. juncea, which allowed reducing M. javanica populations (Inomoto et al, 2008;Miamoto et al, 2016), although it was not efficient in controlling P. brachyurus (Braz et al, 2016). It is worth highlighting that C. juncea recorded different RFs for different P. brachyurus populations; populations from Goiás State presented RF = 2.16 (Braz et al, 2016), those from Rio de Janeiro State recorded RF = 1.13, and populations from Mato Grosso State recorded 4.27 (Machado et al, 2007).…”

Section: Discussionmentioning

confidence: 57%

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Antagonistic Effects of Java against Plant Parasitic Nematodes

Miamoto¹,

Dias‐Arieira²,

Puerari³

et al. 2018

JAS

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One of the main phytonematode control alternatives is the use of antagonistic plants in crop rotation or succession systems. Although java legume shows antagonist potential to control Meloidogyne javanica, its reaction to other nematodes was not investigated so far. Thus, the aim of the current study is to assess the penetration and reproduction factor (RF) of M. incognita, Rotylenchulus reniformis and Pratylenchus brachyurus in java, using soybean as control. Plants individually inoculated with 1000 specimens from each nematode were assessed 5, 10, 15, 20, 25 and 30 days after inoculation (DAI) for nematode penetration and development. The RF was assessed under two inoculum levels of each nematode (1000 and 700 specimens) 60 days after inoculation, for M. incognita and R. reniformis; and 80 days after inoculation, for P. brachyurus. Meloidogyne incognita and R. reniformis showed lower penetration and reproduction in java (RF < 1), whereas P. brachyurus showed higher penetration and RF > 1. Thus, the java legume can be considered resistant to M. incognita and R. reniformis, as well as susceptible to P. brachyurus.

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Section: Discussionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 57%

Antagonistic Effects of Java against Plant Parasitic Nematodes

Miamoto¹,

Dias‐Arieira²,

Puerari³

et al. 2018

JAS

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“…In the current study, C. spectabilis , C. ochroleuca and C. breviflora were either resistant or immune to M. javanica and M. incognita , corroborating previous studies (Osei et al ., ; Rosa et al ., ; Miamoto et al ., ). Interestingly, C. spectabilis , C. ochroleuca and C. breviflora are resistant to other nematodes that affect soyabean crops, including P. brachyurus (Braz et al ., ). The nematicidal effect of Crotalaria spp.…”

Section: Discussionmentioning

confidence: 97%

“…juncea was resistant to M. javanica but susceptible to M. incognita in one of the experiments, different from that observed in other studies (Curto et al ., ). This species was also shown to host P. brachyurus (Braz et al ., ).…”

Section: Discussionmentioning

confidence: 97%

Weed hosts of Meloidogyne spp. and the effect of aqueous weed extracts on egg hatching

et al. 2019

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Summary Weeds have a great economic impact on agricultural production because they compete with crops for resources and are alternative hosts for pests, microbial pathogens and plant‐parasitic nematodes. This study aimed to investigate the susceptibility of weeds to the root‐knot nematodes Meloidogyne javanica and Meloidogyne incognita and assess the effect of aqueous weed extracts on M. javanica egg hatching. Four experiments were conducted, two for each nematode species. Weeds were inoculated with 2000 nematode eggs and grown for 60 days under greenhouse conditions. Soyabean cv. Monsoy 7110 was used as control. The weeds Ipomoea grandifolia, Solanum americanum, Digitaria horizontalis, Amaranthus deflexus, Sorghum halepense and Commelina benghalensis were susceptible to M. javanica and M. incognita in at least one experiment (reproduction factor, RF >1). Crotalaria juncea and Eleusine indica were susceptible to M. incognita in one experiment, and Digitaria insularis, Sida rhombifolia, Bidens pilosa, Urochloa decumbens, Crotalaria breviflora, Cenchrus echinatus, Crotalaria ochroleuca and Crotalaria spectabilis were immune or resistant (RF <1 or RF = 0). Alternanthera tenella, C. juncea, S. rhombifolia, C. ochroleuca, C. spectabilis, C. breviflora, B. pilosa, E. indica, U. decumbens and C. echinatus were resistant or immune to M. javanica (RF <1 or RF = 0). Compared with the control (water), all weed extracts reduced M. javanica egg hatch. Our results highlight the importance of weed control in agricultural systems, as nematodes can survive and multiply in weed roots during the off‐season. Weed leaves and shoots, however, may be an interesting source of compounds with nematicidal activity.

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“…to control nematodes in several species was confirmed, mainly in studies using C. spectabilis and C. juncea against Meloidogyne spp. (Inomoto et al, 2006;Santana et al, 2012;Rosa et al, 2013;Miamoto et al, 2016) and P. brachyurus (Inomoto et al, 2006;Dias et al, 2012;Vedoveto et al, 2013;Braz et al, 2016). Silva et al (1989) assessed M. javanica development in C. spectabilis, C. juncea, C. retusa and C. paulina; however, they did not record formation of adult individuals 45 days after inoculation.…”

Section: Discussionmentioning

confidence: 99%

Crotalaria ochroleuca Susceptibility to Heterodera glycines Races

Cardoso¹,

Dias‐Arieira²,

Ribeiro³

et al. 2019

JAS

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The aim of the study is to assess Crotalaria ochroleuca susceptibility to six Heterodera glycines races. To this, C. ochroleuca seedlings and two soybean cultivars were transplanted and individually inoculated with nematode races 1, 2, 3, 5, 6 and 14. Plants were collected and assessed 30 and 60 days after inoculation. Crotalaria ochroleuca reduced the number of females and the total number of eggs of the races 1, 2, 5 and 6. The reproduction of race 3 in crotalaria was equal to that of soybean cultivars in both assessment periods, whereas race 14 only reduced the reproduction in crotalaria to 60 days. Races 1 and 6 (30th day) and races 6 and 14 (60th day) showed number of eggs female-1 smaller than the controls. According to female index (FI), C. ochroleuca was resistant to races 1, 2 and 5, susceptible to race 3, and showed varying reactions to races 6 and 14.

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Plantas daninhas como hospedeiras alternativas para Pratylenchus brachyurus

Cited by 18 publications

References 8 publications

Antagonistic Effects of Java against Plant Parasitic Nematodes

Antagonistic Effects of Java against Plant Parasitic Nematodes

Weed hosts of Meloidogyne spp. and the effect of aqueous weed extracts on egg hatching

Crotalaria ochroleuca Susceptibility to Heterodera glycines Races

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