Development of chitosan-PEG blended films using Trichoderma: Enhancement of antimicrobial activity and seed quality

Chandrika, K.; Prasad, R. D.; Godbole, Varsha

doi:10.1016/j.ijbiomac.2018.12.208

Cited by 39 publications

(18 citation statements)

References 32 publications

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“…One important trend in biocontrol is the application of combinations of BCAs or mixing a BCA with a biocidal natural agent [21,23]. Evaluating their potential synergism, additive effects, or antagonism before application is important since a shift towards increased, reduced, or similar effectiveness determines their best way of application and combination.…”

Section: Discussionmentioning

confidence: 99%

“…In recent years, a combination of BCAs with antimicrobial/biocidal compounds, such as chitosan, has become increasingly important [21,22]. In most of the studies, the combined effects of chitosan with other antimicrobial agents or BCAs are higher regarding the synergistic antimicrobial effects of chitosan.…”

Section: Introductionmentioning

confidence: 99%

“…In most of the studies, the combined effects of chitosan with other antimicrobial agents or BCAs are higher regarding the synergistic antimicrobial effects of chitosan. Particularly noteworthy for our study are the recently published results on the bio-efficacy of castor, groundnut, or safflower seeds, coated with a chitosan-polyethylene glycol Trichoderma harzianum (CHSN-PEG-Th) blend, which showed that the germination and vitality of the seedlings was significantly increased, but disease was reduced [21,23]. Moreover, a combination of chitosan (or a chitosan oligomer) and an albino strain of T. harzianum inhibited spore germination and, hence, the colony formation of the plant pathogens Leptographium procerum or Sphaeropsis sapinea [22].…”

Section: Introductionmentioning

confidence: 99%

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The Multilateral Efficacy of Chitosan and Trichoderma on Sugar Beet

Kappel

Kosa

Gruber

2022

JoF

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The majority of all fungal formulations contain Trichoderma spp., making them effective biological control agents for agriculture. Chitosan, one of the most effective natural biopolymers, was also reported as a plant resistance enhancer and as a biocide against a variety of plant pathogens. An in vitro three-way interaction assay of T. atroviride, chitosan, and important plant pathogens (such as Cercospora beticola and Fusarium oxysporum) revealed a synergistic effect on fungistasis. Furthermore, chitosan coating on Beta vulgaris ssp. vulgaris seeds positively affected the onset and efficiency of germination. We show that priming with T. atroviride spores or chitosan leads to the induced expression of a pathogenesis-related gene (PR-3), but only supplementation of chitosan led to significant upregulation of phytoalexin synthesis (PAL) and oxidative stress-related genes (GST) as a defense response. Repeated foliar application of either agent promoted growth, triggered defense reactions, and reduced incidence of Cercospora leaf spot (CLS) disease in B. vulgaris. Our data suggest that both agents are excellent candidates to replace or assist common fungicides in use. Chitosan triggered the systemic resistance and had a biocidal effect, while T. atroviride mainly induced stress-related defense genes in B. vulgaris. We assume that both agents act synergistically across different signaling pathways, which could be of high relevance for their combinatorial and thus beneficial application on field.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Multilateral Efficacy of Chitosan and Trichoderma on Sugar Beet

Kappel

Kosa

Gruber

2022

JoF

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“…Podobne traktowanie nasion karczocha przyczyniło się do stymulacji kiełkowania i wzrostu siewek, ale nie ograniczyło porażenia nasion przez grzyby rodzaju Rhizopus, dlatego w tym wypadku rekomenduje się zastosowanie chitozanu w połączeniu z fungicydem [21]. Chitozan w otoczkach doskonale łączy się z innymi składnikami, takimi jak: polimery syntetyczne, surfaktanty oraz zarodniki grzybów antagonistycznych wobec patogenów roślin [33].…”

Section: (I)unclassified

The use of natural polymers for treatments enhancing sowing material

Korbecka-Glinka

Wiśniewska‐Wrona

Kopania

2021

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Biopolymers from a group of polysaccharides are used in treatments enhancing sowing material of crops due to their physical and chemical properties, susceptibility to chemical modification, biodegradability and high bioactivity. Natural polymers, such as: chitosan, alginian, celulose, galaktoglucomannans, lignin and gellan gum, can be used as binders in seed coating or carriers of active substances and microorganisms. Moreover, biopolymers contained in the seed coatings and seed dressings can protect germinating seeds from unfavorable influence of environment and pathogens.

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“…Dentre os tratamentos prévios atuais têm se utilizado compósitos poliméricos formados, em especial, por quitosana (POORNA CHANDRIKA et al, 2019;BARROS et al, 2020;SAMARAH et al, 2020;). A quitosana em um polímero polissacarídeo formado por resíduos de β-(1,4) 2-acetamido-2-deoxi-D-glicopiranose e 2-amino-2deoxi-D-glicopiranose, estando o segundo em proporção acima de 60%.…”

Section: Introductionunclassified