Biocontrol agent Fusarium oxysporum f.sp. strigae has no adverse effect on indigenous total fungal communities and specific AMF taxa in contrasting maize rhizospheres

Zimmermann, Judith; Musyoki, Mary K.; Cadisch, Georg; Rasche, Frank

doi:10.1016/j.funeco.2016.05.007

Cited by 16 publications

(4 citation statements)

References 71 publications

(92 reference statements)

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“…Inoculation of F. oxysporum f.sp. strigae did not have a harmful effect on rhizosphere prokaryotes, indigenous total fungal community and specific arbuscular mycorrhizal fungal taxa [103][104][105]. Coating sorghum seeds with a biocontrol strain of F. oxysporum had no adverse effects on sorghum seed germination, emergence or growth [106,107].…”

Section: Microbiological Approachmentioning

confidence: 95%

Recent research progress in combatting root parasitic weeds

Samejima

Sugimoto

2018

Biotechnology & Biotechnological Equipment

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The obligate root parasitic Orobanchaceae plants Striga, Orobanche and Phelipanche spp. parasitize economically important crops, vegetables and oil plants. They are the most devastating agricultural weed pests worldwide. Based on an analysis of the climatic requirements of these parasites, very large areas of new territory are at risk of invasion if care is not taken. Recent research in combatting root parasitic weeds was reviewed based on scientific papers reported from 2010 and onwards. The countermeasures fell into eight kinds: resistant varieties, tolerant varieties, microbiological approach, cultural practices, chemical controls, host-induced gene silencing, integrated management and dissemination of technologies including the current situation survey. The development of practical, feasible and economical control technologies against root parasitic weeds would be expected by advancing and combining the countermeasures.

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Section: Microbiological Approachmentioning

confidence: 95%

Recent research progress in combatting root parasitic weeds

Samejima

Sugimoto

2018

Biotechnology & Biotechnological Equipment

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“…, Zimmermann et al. ). This implies that the range of beneficial functions provided by AMF fully evolves in adult plant stages, while younger plant stages might suffer from a low AMF symbiosis rate.…”

Section: Plant–microbe Interactionsmentioning

confidence: 98%

“…Several reports revealed a preference of AMF toward low-input agricultural systems compared to intensively fertilized systems (Oehl et al 2005, Liu et al 2015. It was also shown that AMF colonization intensifies with increasing plant age (Grigera et al 2007, Zimmermann et al 2016. This implies that the range of beneficial functions provided by AMF fully evolves in adult plant stages, while younger plant stages might suffer from a low AMF symbiosis rate.…”

Section: Biological Nutrient Acquisitionmentioning

confidence: 99%

A preview of perennial grain agriculture: knowledge gain from biotic interactions in natural and agricultural ecosystems

et al. 2017

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Abstract. Compared to their annual analogues, perennial grain cropping systems provide various beneficial attributes for the environment and ecosystem services related to resource use efficiency, soil erosion, and soil conservation. However, there is only limited understanding of the multiple biotic interactions in perennial cropping systems and their potential effects on the crop, involving plant growth-promoting and pathogenic microorganisms, beneficial and detrimental faunal organisms below-and above-ground, weeds, and overall biodiversity effects. We use information from studies carried out in managed and natural perennial systems of analogous structure such as perennial energy crop production systems and grasslands to highlight and specify biotic interactions and processes, which potentially constitute advantages and constraints in developing perennial grain cropping systems. Concerning the relevance of soil microorganisms and potential perennial crop breeding goals, we focus on a range of plant-microbe interactions in the rhizosphere involved in biofertilization, phytostimulation, and biological control of soil pathogens. We consider relationships within the faunal community emphasizing arthropod pests and their natural enemies, as well as crop-weed interactions. Based on these outcomes and in comparison with annual systems, we discuss and compile benefits, options, and limitations of management of crop-associated biotic interactions and biodiversity, which might contribute to reproducible and sustainable effects of perennial grain crop productivity. We conclude that management strategies for perennial grain cropping systems depend much more on ecological processes and interactions operating in natural ecosystems than those in annual cropping systems. Consequently, the use of agrochemicals for pest, weed, and disease control, as well as the use of synthetic fertilizers, counteracts the principle functions of the system and would strongly degrade the potential of biotic benefits. We also found that there is only vague information on the long-term productivity and cultivation period of perennial grain crops, the specific management operations of replacement, and the potential development and management of weed and pest populations. Overall, an advanced understanding of interactions between the crop and its biotic environment provides the opportunity to manipulate specific functional traits of crop-associated organisms for improved management and crop productivity, but significant research challenges for implementation of perennial grain crops still remain.

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“…strigae was developed to control Striga hermonthica and S. asiatica. It was registered in 2008 in Africa [5,20]. Another mycoherbicide, DeVine is a liquid formulation of Phytophthora palmivora (P. citrophthora) chlamydospores for control of milkweed vine (Morrenia odorata) in Florida citrus groves.…”

Section: Choice Of Propagule Typesmentioning

confidence: 99%

Production and Stabilization of Mycoherbicides

Berestetskiy¹,

Сокорнова²

2018

Biological Approaches for Controlling Weeds

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Despite the urgent need for alternatives to chemicals in plant protection, biological herbicides are not widely used as biofungicides and bioinsecticides. The review is devoted to connections between fungal biology, biochemistry, their ability to survive in extreme environment and development of effective mycoherbicides. Advanced studies on the production and stabilization of mycofungicides and mycoinsecticides were analyzed too in order to obtain ideas for the improvement of efficacy and technology of mycoherbicides in the future. The analysis of research data published within last 20 years showed following trends. First, more attention is paid for production both effective and stress tolerant propagules especially based on the submerged fungal mycelium and its modifications (blastospores, chlamydospores and microsclerotia). Second, the construction of bioreactors, in particular, for solid-state fermentation is continuously being improved that allows producing highly stress tolerant fungal aerial conidia. Third, based on studies of biochemical mechanisms of viability of fungi in extreme environment, the approaches of stabilization and storage of fungal propagules were developed. However, the positive reply to the question, if biopesticides including mycoherbicides, will become a serious alternative to agrochemicals, will be possible when they demonstrate stable efficacy in the field conditions and safety for both environment and end users.

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Biocontrol agent Fusarium oxysporum f.sp. strigae has no adverse effect on indigenous total fungal communities and specific AMF taxa in contrasting maize rhizospheres

Cited by 16 publications

References 71 publications

Recent research progress in combatting root parasitic weeds

Recent research progress in combatting root parasitic weeds

A preview of perennial grain agriculture: knowledge gain from biotic interactions in natural and agricultural ecosystems

Production and Stabilization of Mycoherbicides

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