<i>Azospirillum</i> improves lettuce growth and transplant under saline conditions

Fasciglione, Gabriela; Casanovas, Elda M.; Yommi, Alejandra; Sueldo, Rolando J.; Barassi, Carlos A.

doi:10.1002/jsfa.5661

Cited by 28 publications

(19 citation statements)

References 33 publications

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“…To prevent moisture loss in the plate containing the seed, it is recommended to cover them with polyethylene film. Salt concentration to be used in the experiment depends on the plant species (Shannon 1997), being lettuce considered a relatively salt-sensitive vegetable (Fasciglione 2012).…”

Section: Methodsmentioning

confidence: 99%

“…The CGT has been proved useful in determining fungicide efficacy to select genetic traits related to seed germination on cool and humid soils, to select seed batches devoted to early sowing, to adjust sowing density, and also to evaluate the damaging effects of seed storage on plant physiology (AOSA 1983). Taking the above into account and the proved Azospirillum's ability to promote plant growth under stressful abiotic conditions (Kohler et al 2009;Fasciglione et al 2012;Romero et al 2014), we have proposed a modified CGT as a complementary tool to determine the optimum bacterial inoculum concentration to be used in Azospirillum-vegetable association studies.…”

Section: Cool Germination Testmentioning

confidence: 99%

“…Indeed, both germinating power (GP) and aerial biomass increase in carrot and lettuce exposed to low and moderate salt stress has been reported (Barassi 2008). More recently, in order to determine the adequate number of bacteria improving germination under salting conditions, lettuce seeds were inoculated with different numbers of Azospirillum cells and exposed to four salt stress levels (Fasciglione et al 2012). In this regard, plant establishment under salinity depends on successful seed germination (Zhilong 2004;Eraslan 2007).…”

Section: Salt Germination Testmentioning

confidence: 99%

“…Some of these studies have been performed on lettuce growing under normal and salinity growth conditions (Barassi et al 2006(Barassi et al , 2007Kohler et al 2009;Fasciglione et al 2012), tomato (Lamsal et al 2013;Romero et al 2014) and pepper (del Amor et al 2008;Flores et al 2010).…”

Section: Introductionmentioning

confidence: 99%

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Azospirillum spp. and Related PGPRs Inocula Use in Intensive Agriculture

Casanovas

Fasciglione

Barassi

2015

Handbook for Azospirillum

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From the beginning of plant domestication, extensive farming has been the main strategy adopted by agriculture to produce large amounts of food. However, plant production in a continuously deteriorating environment and an exponentially growing human population are important factors that challenge agriculture nowadays. Moreover, agricultural lands are currently expanded to marginal, arid, or semiarid regions where crops are exposed to abiotic stresses as drought and salinity, this last negative factor aggravated by different anthropogenic actions. In addition, contemporary society requires from agriculture to provide food products with high market and nutritional qualities as fruits and vegetables, which should also be free of agrochemicals. In consequence, it is imperative to develop friendly, noncontaminant, sustainable, and energy-saving plant production strategies. In this regard, vegetable production by intensive farming in controlled environments is continuously expanding. On the other hand, recent reports show that plant inoculation with plant-growth promoting rhizobacteria (PGPR) could improve vegetable quality and yield under abiotic stresses, and to reduce the pressure that current agriculture exerts on the environment. Within this context, our main purpose was to describe a number of techniques aimed to study the plausible beneficial effects of Azospirillum and related PGPR inoculation on vegetable growth and nutritional quality, with emphasis on the promotion of antioxidant activity.

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Section: Methodsmentioning

confidence: 99%

Section: Cool Germination Testmentioning

confidence: 99%

Section: Salt Germination Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Azospirillum spp. and Related PGPRs Inocula Use in Intensive Agriculture

Casanovas

Fasciglione

Barassi

2015

Handbook for Azospirillum

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“…Studi tentang aplikasi Azospirillum sp. pada beberapa jenis tanaman mengindikasikan bahwa bakteri ini dapat meningkatkan pertumbuhan dan hasil (Barassi et al, 2007;Kochar dan Srivastava, 2012;Zawoznik et al, 2011;Fasciglione et al, 2012).…”

Section: Pendahuluanunclassified

Pembentukan Populasi Mutan Azospirillum dengan Menggunakan Transposon untuk Sifat Superior terhadap Pelarutan P

Hadiarto¹,

Ma’sumah²,

Riyanti³

2016

J. AgroBiogen

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Formation of Mutant Population of Azospirillum using Transposon for Superior Characteristic of Phosphate Solubilization. Toto Hadiarto, Ma'sumah and Eny I. Riyanti. Azospirillum sp. which has the ability for nitrogen fixation and phosphate solubilization may support modern farming in Indonesia that is mostly dependent on the usage of chemical fertilizer N, P, and K. Genetic quality of Azospirillum was improved in this research to obtain superior characters toward phosphate solubilization so that it can become more effective in use for farmers. To achieve this goal, Azospirillum was mutated by means of electroporation using transposon EZ-Tn5Tnp. The electrotransformation resulted in 20 out of 22 transformants tested contained the marker gen (npt). 10, 6 and 4 mutants have increased, decreased and lost phosphate-solubilizing function, respectively. Mutant with elevated phosphatesolubilizing ability may be selected further to be utilized as biofertilizer while others may be useful for identification of genes responsible for phosphate solubilization.Keywords: Azospirillum, P solubilization, transposon. ABSTRAK Pembentukan Populasi Mutan Azospirillum dengan Menggunakan Transposon untuk Sifat Superior terhadapPelarutan P. Toto Hadiarto, Ma'sumah, dan Eny I. Riyanti. Penggunaan Azospirillum sp yang berfungsi ganda sebagai penambat N dan pelarut P akan sangat membantu pertanian modern di Indonesia yang bergantung pada penggunaan pupuk kimia N, P, dan K. Peningkatan mutu genetik pada Azospirillum dilakukan pada penelitian ini dengan tujuan memperoleh sifat superior terhadap pelarutan P sehingga Azospirillum menjadi lebih efektif untuk petani. Untuk itu dilakukan mutasi dengan teknik elektroporasi menggunakan transposon EZ-Tn5Tnp. Hasil dari transformasi dan direct PCR menunjukkan bahwa dari 22 koloni yang tumbuh pada media seleksi terdapat 20 koloni yang positif mengandung transposon. Dari 20 mutan ini terdapat 10, 6, dan 4 mutan yang memiliki kenaikan, penurunan dan kehilangan kemampuan pelarutan P, secara berurutan. Mutan dengan kemampuan pelarutan P yang tinggi bisa diseleksi lebih lanjut untuk digunakan sebagai pupuk hayati Hak Cipta © 2012, BB-Biogen sedangkan mutan yang kehilangan kemampuan pelarutan P dapat digunakan untuk identifikasi gen pelarut fosfat.

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Microbially derived phytohormones in plant adaptation against abiotic stress

Egamberdieva

2015

Plant‐Environment Interaction

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Azospirillum improves lettuce growth and transplant under saline conditions

Abstract: Azospirillum-inoculated lettuce seeds yield a higher number of transplanted plants with superior quality than non-inoculated controls grown at 0 or at 40 mol m(-3) NaCl.

Cited by 28 publications

References 33 publications

Azospirillum spp. and Related PGPRs Inocula Use in Intensive Agriculture

Azospirillum spp. and Related PGPRs Inocula Use in Intensive Agriculture

Pembentukan Populasi Mutan Azospirillum dengan Menggunakan Transposon untuk Sifat Superior terhadap Pelarutan P

Microbially derived phytohormones in plant adaptation against abiotic stress

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