Actinobacteria interventions in plant and environment fitness

Yadav, Kaushlesh K.; Shrivastava, Neelabh; Solanki, Anjali Chandrol; Upadhyay, Swati; Trivedi, Mala

doi:10.1016/b978-0-12-819715-8.00014-8

Cited by 3 publications

(2 citation statements)

References 176 publications

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“…and R. solanacearum GMI1000. The researches for Actinobacteria as biological control agents of plant disease are of interest, given their ability to colonize healthy plant tissues and produce antibiotics in situ ( Trujillo et al., 2015 ; Jose et al., 2021 ; Yadav et al., 2021 ). For example, Streptomyces isolated from healthy banana plants could produce antifungal molecules that inhibited the growth of Fusarium oxysporum ( Cao et al., 2005 ).…”

Section: Discussionmentioning

confidence: 99%

Microbial interactions and metabolisms in response to bacterial wilt and black shank pathogens in the tobacco rhizosphere

Tang

Liu

Teng³

et al. 2023

Front. Plant Sci.

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BackgroundTobacco bacterial wilt (TBW) and black shank (TBS) are responsible for substantial economic losses worldwide; however, microbial interactions and metabolisms in response to TBW and TBS pathogens in the tobacco rhizosphere remain unclear.MethodsWe explored and compared the response of rhizosphere microbial communities to these two plant diseases with the incidences in moderate and heavy degrees by sequencing of 16S rRNA gene amplicons and bioinformatics analysis.Results and discussionsWe found that the structure of rhizosphere soil bacterial communities was significantly (p < 0.05) changed from the incidences of TBW and TBS, which also led to decreased Shannon diversity and Pielou evenness. Compared with the healthy group (CK), the OTUs with significantly (p < 0.05) decreased relative abundances were mostly affiliated with Actinobacteria (e.g., Streptomyces and Arthrobacter) in the diseased groups, and the OTUs with significantly (p < 0.05) increased relative abundances were mainly identified as Proteobacteria and Acidobacteria. Also, molecular ecological network analysis showed that the nodes (<467) and links (<641) were decreased in the diseased groups compared with the control group (572; 1056), suggesting that both TBW and TBS weakened bacterial interactions. In addition, the predictive functional analysis indicated that the relative abundance of genes related to the biosynthesis of antibiotics (e.g., ansamycins and streptomycin) was significantly (p < 0.05) decreased due to incidences of TBW and TBS, and antimicrobial tests showed that some Actinobacteria strains (e.g., Streptomyces) and their secreted antibiotics (e.g., streptomycin) could effectively inhibit the growth of these two pathogens.

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Section: Discussionmentioning

confidence: 99%

Microbial interactions and metabolisms in response to bacterial wilt and black shank pathogens in the tobacco rhizosphere

Tang

Liu

Teng³

et al. 2023

Front. Plant Sci.

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“…В комплексной борьбе с повреждающим воздействием таких абиотических факторов как засуха, засоление, а также низкая или высокая температура, стресс, связанный с тяжелыми металлами, наряду с традиционными способами использования более устойчивых сортов культурных растений все большее значение приобретает применение эндофитов -сообществ микроорганизмов, колонизирующих растения и повышающих их способность противостоять различным повреждающим воздействиям [19][20][21][22][23][24][25]. Показано, что эндофитные актиномицеты могут выполнять функции стимулирующих рост растений микроорганизмов за счет разнообразных механизмов воздействия [26][27][28].…”

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Influence of Endophytic Microorganisms on Wheat Resistance

ЕРМЕКБАЙ¹,

ОЛЕЙНИКОВА²,

САУБЕНОВА³

et al. 2022

Микробиология Және Вирусология

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Засоление почв является серьезной проблемой Республики Казахстан. Один из путей повышения толерантности сельскохозяйственных культур к солевому стрессу – использование сообществ эндофитных микроорганизмов, повышающих устойчивость растений к различным повреждающим воздействиям. В данной работе показано влияние эндофитов растений, произрастающих в засушливых условиях, на способность проростков пшеницы противостоять солевому стрессу. Наилучшие результаты на синтетической среде показала ассоциация из растения Erigeron canadensis в сочетании с эндофитным актиномицетом пшеницы, отнесенным к виду Streptomyces curacoi. Влияние предварительной адаптации эндофитных микроорганизмов к хлориду натрия на устойчивость растения-хозяина к засолению было показано нами впервые. Soil salinization is a serious problem in the Republic of Kazakhstan. One of the ways to increase the tolerance of agricultural crops to salt stress is the use of communities of endophytic microorganisms, which increase the resistance of plants to various damaging effects. This work shows the influence of endophytes of plants growing in arid conditions on the ability of wheat seedlings to withstand salt stress. The best results on a synthetic medium were shown by an association from the plant Erigeron canadensis in combination with an endophytic wheat actinomycete assigned to the species Streptomyces curacoi. The influence of the preliminary adaptation of endophytic microorganisms to sodium chloride on the resistance of the host plant to salinity was shown by us for the first time.

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