Ameliorative effects of Trichoderma harzianum on monocot crops under hydroponic saline environment

Yasmeen, Roomana; Siddiqui, Zamin Shaheed

doi:10.1007/s11738-017-2579-2

Cited by 29 publications

(13 citation statements)

References 48 publications

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“…The highest free proline content was detected in the nodules of cowpea plants coinoculated with Bradyrhizobium and T. asperelloides and subjected to salt stress at 100 mmol L -1 NaCl (18.9 mmol g -1 FW) ( Figure 4D). Similar to the results found here, Yasmeen and Siddiqui (2018) reported positive effects of T. harzianum in maize and rice plants exposed to 50, 100, and 150 mmol L -1 NaCl. Mustard seedlings inoculated with T. harzianum and exposed to salt stress exhibit 56% and 70% increases in proline content when subjected to 100 and 200 mmol L -1 NaCl, compared to the control, respectively (AHMAD et al, 2015).…”

Section: Cowpea Plants Inoculatedsupporting

confidence: 91%

COINOCULATION WITH Bradyrhizobium AND Trichoderma ALLEVIATES THE EFFECTS OF SALT STRESS IN COWPEA

et al. 2019

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The deleterious effects of salt stress can be mitigated by the use of beneficial microorganisms. The aims of this study were to evaluate whether coinoculation with Bradyrhizobium and Trichoderma asperelloides alleviates salt stress in cowpea. The experiment was conducted in a greenhouse using pots filled with sterile soil. Seeds were sown and inoculated with Bradyrhizobium or coinoculated with Bradyrhizobium and T. asperelloides. At 15 days after sowing (DAS), the nitrogen-free nutritive solution was supplemented with 50 or 100 mmol L -1 sodium chloride (NaCl) to induce salinity. Uninoculated plants and irrigated with solution without NaCl were used as absolute control. At 35 DAS, plants were collected and nodules were excised for use in the determinations. The absolute controls did not show root nodules. Salt stress decreased plant biomass and growth, especially in cowpea inoculated with Bradyrhizobium. The stem diameter increased in cowpea coinoculated with Bradyrhizobium and T. asperelloides, mainly in plants subjected to salt stress at 100 mmol L -1 NaCl. Cowpea coinoculated with Bradyrhizobium and T. asperelloides maintained a higher content of free ammonia and organic compounds in its nodules even under salt stress. We concluded that the coinoculation of cowpea with Bradyrhizobium and T. asperelloides induces an increase in the concentration of organic solutes in the root nodules, especially when cowpeas are cultivated under salinity. Therefore, the use of coinoculation with Bradyrhizobium and T. asperelloides alleviates the negative effects of salt stress in cowpea. COINOCULAÇÃO COMBradyrhizobium E Trichoderma ALIVIA OS EFEITOS DO ESTRESSE SALINO EM FEIJÃO-CAUPI RESUMO -Os efeitos deletérios do estresse salino podem ser mitigados pelo uso de microrganismos benéficos. O objetivo foi avaliar se a inoculação com Bradyrhizobium e Trichoderma asperelloides alivia o estresse salino em feijão-caupi. O experimento foi conduzido em casa de vegetação utilizando vasos preenchidos com solo estéril. As sementes foram semeadas e inoculadas com Bradyrhizobium ou coinoculadas com Bradyrhizobium e T. asperelloides. Aos 15 dias após a semeadura (DAS), a solução nutritiva isenta de nitrogênio foi suplementada com 50 ou 100 mmol L -1 de cloreto de sódio (NaCl) para induzir a salinidade. Plantas não inoculadas e irrigadas com solução sem NaCl foram utilizadas como controle absoluto. Aos 35 DAS, as plantas foram coletadas e os nódulos excisados para uso nas determinações. O controle absoluto não apresentou nódulos radiculares. O estresse salino diminuiu a biomassa e o crescimento das plantas, especialmente no feijão-caupi inoculado com Bradyrhizobium. O diâmetro do caule aumentou no feijão-caupi coinoculado com Bradyrhizobium e T. asperelloides, principalmente nas plantas submetidas a estresse salino com 100 mmol L -1 de NaCl. O feijão-caupi coinoculado com Bradyrhizobium e T. asperelloides manteve um conteúdo mais alto de amônia livre e compostos orgânicos em seus nódulos, mesmo sob estresse salino. Nós concluímos que a coinoc...

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Section: Cowpea Plants Inoculatedsupporting

confidence: 91%

COINOCULATION WITH Bradyrhizobium AND Trichoderma ALLEVIATES THE EFFECTS OF SALT STRESS IN COWPEA

et al. 2019

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“…The drought stress was developed due to a progressive reduction in watering from the development of the third true leaf (three-week-old plants). The pots were irrigated twice a week in weeks 4 and 5, once a week in weeks 6 and 7, and once every two weeks until the end of the life cycle (weeks [8][9][10][11][12][13][14][15][16][17][18][19].…”

Section: Abiotic Stress and Productivity Quantificationmentioning

confidence: 99%

Trichoderma parareesei Favors the Tolerance of Rapeseed (Brassica napus L.) to Salinity and Drought Due to a Chorismate Mutase

Poveda

2020

Agronomy

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Both drought and salinity represent the greatest plant abiotic stresses in crops. Increasing plant tolerance against these environmental conditions must be a key strategy in the development of future agriculture. The genus of Trichoderma filament fungi includes several species widely used as biocontrol agents for plant diseases but also some with the ability to increase plant tolerance against abiotic stresses. In this sense, using the species T. parareesei and T. harzianum, we have verified the differences between the two after their application in rapeseed (Brassica napus) root inoculation, with T. parareesei being a more efficient alternative to increase rapeseed productivity under drought or salinity conditions. In addition, we have determined the role that T. parareesei chorismate mutase plays in its ability to promote tolerance to salinity and drought in plants by increasing the expression of genes related to the hormonal pathways of abscisic acid (ABA) under drought stress, and ethylene (ET) under salt stress.

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“…Coinoculation of Aspergillus niger and Trichoderma harzianum alleviates the deleterious effects of salt stress on wheat seedlings through the solubilisation of P and joint production of indoleacetic acid [10]. Yasmeen and Siddiqui [11] detected that the presence of Trichoderma in a saline environment increased the activity of antioxidant enzymes. Studies carried out with T. harzianum confirmed its high soil colonisation and yield in the production of tomatoes grown under plastic with high-salinity irrigation [12].…”

Section: Introductionmentioning

confidence: 99%

Plant Growth Promotion and Biocontrol of Pythium ultimum by Saline Tolerant Trichoderma Isolates under Salinity Stress

Sánchez-Montesinos

Diánez

Moreno-Gavíra

et al. 2019

IJERPH

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This present study evaluates three isolates of Trichoderma as plant growth promoting or biological control agents: Trichoderma aggressivum f. sp. europaeum, Trichoderma saturnisporum, and the marine isolate obtained from Posidonia oceanica, Trichoderma longibrachiatum. The purpose is to contribute to an overall reduction in pesticide residues in the fruit and the environment and to a decrease in chemical fertilizers, the excess of which aggravates one of the most serious abiotic stresses, salinity. The tolerance of the different isolates to increasing concentrations of sodium chloride was evaluated in vitro, as well as their antagonistic capacity against Pythium ultimum. The plant growth promoting capacity and effects of Trichoderma strains on the severity of P. ultimum on melon seedlings under saline conditions were also analysed. The results reveal that the three isolates of Trichoderma, regardless of their origin, alleviate the stress produced by salinity, resulting in larger plants with an air-dry weight percentage above 80% in saline stress conditions for T. longibrachiatum, or an increase in root-dry weight close to 50% when T. aggressivum f. sp. europaeum was applied. Likewise, the three isolates showed antagonistic activity against P. ultimum, reducing the incidence of the disease, with the highest response found for T. longibrachiatum. Biological control of P. ultimum by T. aggressivum f. sp. europaeum and T. saturnisporum is reported for the first time, reducing disease severity by 62.96% and 51.85%, respectively. This is the first description of T. aggressivum f. sp. europaeum as a biological control agent and growth promoter. The application of these isolates can be of enormous benefit to horticultural crops, in both seedbeds and greenhouses.

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Ameliorative effects of Trichoderma harzianum on monocot crops under hydroponic saline environment

Cited by 29 publications

References 48 publications

COINOCULATION WITH Bradyrhizobium AND Trichoderma ALLEVIATES THE EFFECTS OF SALT STRESS IN COWPEA

COINOCULATION WITH Bradyrhizobium AND Trichoderma ALLEVIATES THE EFFECTS OF SALT STRESS IN COWPEA

Trichoderma parareesei Favors the Tolerance of Rapeseed (Brassica napus L.) to Salinity and Drought Due to a Chorismate Mutase

Plant Growth Promotion and Biocontrol of Pythium ultimum by Saline Tolerant Trichoderma Isolates under Salinity Stress

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