Host range of Alternaria alternata—a potential fungal biocontrol agents for waterhyacinth in India

Babu, R. Mohan; Sajeena, A.; Seetharaman, Koushik; Vidhyasekaran, P.; Rangasamy, P.; prakash, M.Som; Raja, A.Senthil; Biji, K. R.

doi:10.1016/s0261-2194(02)00076-5

Cited by 14 publications

(17 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Among the arthropods, the mite Orthogalumna terebrantis Wallwork, the moths Acigona infusella Walker and Sameodes albiguttalis (Warren), the miridae Eccritotarsus catarinensis Carvalho, and weevils (Neochetina eichhorniae Warner and N. bruchi Hustache) are generally considered as good candidates (Ogwang and Molo, 1997;Center et al, 1999a, b;Grodowitz et al, 2000;Moran, 2004;Williams et al, 2007). Among the pathogens, controlled experimental studies have confirmed that Acremonium zonatum, Alternaria eichhorniae, A. alternata, Bipolaris spp., Cercospora piaropi (Cercospora rodmanii), Drechslera hawaiiensis, Fusarium equiseti, F. pallidoroseum, Rhizoctonia solani, Myrothecium advena, Sclerotinia sclerotiorum, and Ulocladium atrum significantly reduce this weed's biomass (Conway and Cullen, 1978;Shabana et al, 1995b;Charudattan, 2001a;Naseema et al, 2001;Ochiel et al, 2001;Mohan et al, 2002;El-Morsy, 2004;Praveena and Naseema, 2004;Waipara et al, 2006).…”

Section: Background and Justificationmentioning

confidence: 99%

“…zonatum Mexico, Sudan, Australia, South Africa, Nigeria Galbraith, 1987;Abdelrahim and Tawfig, 1984;Martinez and Charudattan, 1998;Morris et al, 1999;Okunowo et al, 2008 A. alternata Egypt, India Elwakil et al, 1990;Shabana et al, 1995aShabana et al, ,b,1997Mohan Babu et al, 2002El-Morsy, 2004;Ray, 2006 A. eichhorniae Egypt, South Africa, India, Bangladesh, Indonesia, Thailand, Nag Raj and Ponnappa, 1970;Charudattan, 1973;Mangoendihardjo et al, 1978;Badur-ud-Din, 1978;Rakvidhyasastra et al, 1978;Shabana et al, 1995aShabana et al, ,b,1997Morris et al, 1999Bipolaris sp. Dominican Republic Charudattan, 1990 Mexico, South Africa, Brazil, USA, Zambia, Venezuela Martinez and Charudattan, 1998;Charudattan, 2001a;Julien and Griffiths, 1998;Hill and Coetzee, 2008 D. 1984;).…”

Section: Pathogen Country Referencementioning

confidence: 99%

“…Alternaria alternata: This fungus has been described as a pathogen of water hyacinth in Australia (Galbraith and Hayward, 1984), Egypt (Shabana et al, 1995a, b;El-Morsy 2004;El-Morsy et al, 2006), Bangladesh (Bardur-ud-Din, 1978), and India (Aneja and Singh, 1989;Mohan et al, 2002Mohan et al, ,2003. This pathogen has been evaluated as a nonefficient biocontrol agent (Bardur-ud-Din, 1978;Aneja and Singh, 1989).…”

Section: Pathogen Country Referencementioning

confidence: 99%

“…This pathogen has been evaluated as a nonefficient biocontrol agent (Bardur-ud-Din, 1978;Aneja and Singh, 1989). Recently, the pathogen was evaluated intensively as a biocontrol agent in India and Egypt (Mohan et al, 2002(Mohan et al, , 2003El-Morsy et al, 2006). Test results indicated that the fungus was highly virulent on water hyacinth, leading to plant death.…”

Section: Pathogen Country Referencementioning

confidence: 99%

See 3 more Smart Citations

Management of water hyacinth (Eichhornia crassipes [Mart.] Solms) using bioagents in the Rift Valley of Ethiopia

Gebregiorgis

View full text Add to dashboard Cite

Management of water hyacinth (Eichhornia crassipes[This thesis presents a study on management of water hyacinth (Eichhornia crassipes [Mart.] Solms) using insects and fungal pathogens as bioagents. The main goal was to develop an effective biocontrol strategy for water hyacinth in the Rift Valley of Ethiopia. To this end, a field survey was conducted to assess the agro-ecological distribution of water hyacinth and of native fungal pathogens found in association with water hyacinth. We also performed laboratory and lath house experiments on (i) pathogenicity and host specificity of the fungal pathogens; (ii) adaptability, life table, efficacy and host specificity of the two Neochetina weevils; and (iii) the synergetic effects of integrated use of Neochetina weevils and fungal pathogen as bioagents. Survey results indicated that the weed is distributed in the Rift Valley water bodies located in low, mid and high altitude. The survey results also identified 25 fungal species found in association with water hyacinth that belonged to nine genera. Among the isolates, Alternaria alternata, A. tenuissima, and Alternaria spp. hold promise as possible bioagents of water hyacinth.Laboratory study on life cycle and development of Neochetina weevils indicated the two weevils took shorter generation time in Ethiopia than in Argentina but relatively similar to Kenya and Uganda. In Ethiopia, the two weevils produced four generations per year indicating their successful establishment. Feeding by adult weevils and tunneling by larvae significantly impacted the vigour and reproduction of water hyacinth plants. A herbivory loads of three pairs of N. bruchi and two pairs of N. eichhorniae showed the highest level of leaf damage and defoliated petioles. The study also reinforced that the two weevils are sufficiently host-specific. Finally, a study on integrated use of Neochetina weevils and an indigenous plant pathogen revealed that the two Neochetina weevils and the fungus A. alternata were together able to reduce the vegetative growth and fresh weight of water hyacinth plants considerably.This study recommends integrated use of fungal species and the two weevils to control water hyacinth. Implications of the findings are also discussed in the context of integrated water hyacinth management using the native fungal pathogens and the two weevils.

show abstract

Section: Background and Justificationmentioning

confidence: 99%

Section: Pathogen Country Referencementioning

confidence: 99%

Section: Pathogen Country Referencementioning

confidence: 99%

Section: Pathogen Country Referencementioning

confidence: 99%

See 2 more Smart Citations

Management of water hyacinth (Eichhornia crassipes [Mart.] Solms) using bioagents in the Rift Valley of Ethiopia

Gebregiorgis

View full text Add to dashboard Cite

show abstract

“…In host-range studies of Alternaria alternata, a potential biological control of water hyacinth (Eichhornia crassipes), the biocontrol agent also inhibited the weed water lettuce (Pistia stratiotes L.; Mohan Babu et al, 2002). They evaluated 29 economically and environmentally significant species that encompassed more than 18 families.…”

Section: Challenges For Weed Control With Microbial Herbicidesmentioning

confidence: 99%

Microbial Weed Control and Microbial Herbicides

Stubbs¹,

Kennedy²

2012

Herbicides - Environmental Impact Studies and Management Approaches

View full text Add to dashboard Cite

Prospective of fungal pathogen‐based bioherbicides for the control of water hyacinth: A review

Sharma

Pandey

2021

J Basic Microbiol

View full text Add to dashboard Cite

Over the decades the presence of aquatic weeds has caused immense biodiversity loss to the ecosystem. The use of herbicides has arisen emergence of herbicide-resistant weeds and loss of inherent flora and fauna due to the recalcitrant nature of the chemicals used. Hence, there is a need to use nontoxic, ecosustainable, low-cost, and efficient biological molecules that are analogous to chemical herbicides. Various plants, bacteria, fungi as well a few viruses are reported to secrete allelopathic biomolecules that inhibit the growth and development of weeds. However, majorly fungal pathogens and their metabolites are found to be effective biocontrol agents for the water hyacinth. The present review puts forward major findings and interventions in the biological control of the weed, water hyacinth. The biosynthesis, mechanism of action and factors regulating the activity of bioherbicides are discussed. In addition, the issues associated with the in situ application of these bioherbicides are also conferred focusing on the available mode of applications and formulation used. The major factors include the type and concentration of allelopathic biomolecules, age, type, and morphology of targeted weed, formulation type, mode of application and other physiological and environmental factors. Among various modes for the application of bioherbicides, emulsions are found to be most effective for the control of water hyacinth. Most of the toxicity studies indicated no toxicity of this fungal pathogen to other ecological plant species except water hyacinth. Yet, in-depth investigations are needed of these allelochemicals and toxins before field applications. Overall, lab-scale studies have shown promising results and highlighted a few potential fungi that need to be further explored for optimizing their bioherbicidal activity.

show abstract

Host range of Alternaria alternata—a potential fungal biocontrol agents for waterhyacinth in India

Cited by 14 publications

References 4 publications

Management of water hyacinth (Eichhornia crassipes [Mart.] Solms) using bioagents in the Rift Valley of Ethiopia

Management of water hyacinth (Eichhornia crassipes [Mart.] Solms) using bioagents in the Rift Valley of Ethiopia

Microbial Weed Control and Microbial Herbicides

Prospective of fungal pathogen‐based bioherbicides for the control of water hyacinth: A review

Contact Info

Product

Resources

About