Genomic and Genetic Studies of Abiotic Stress Tolerance in Barley

Saadé, Stephanie; Negrão, Sónia; Plett, Darren; Garnett, Trevor; Tester, Mark

doi:10.1007/978-3-319-92528-8_15

Cited by 10 publications

(7 citation statements)

References 253 publications

(334 reference statements)

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“…Hasil analisis kadar nitrat (NO (Saade et al, 2018). Pengikatan ion Na + ke komponen dinding sel dapat mempengaruhi pengikatan ion lain dan menghambat fungsi pektin selama pertumbuhan sel.…”

Section: Hasil Dan Pembahasanunclassified

Mekanisme Adaptasi Jagung terhadap Cekaman NaCl: Pola Serapan Anion dan Kation

Utama¹,

Haryoko²

2020

J Agron Indonesia

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Salt solubility is the abiotic pressure which has the most effect on the loss of plant quantity and quality. Salinity not only makes plants stressful but also presents severe constraints on crop production so an attempt to understand plant adaptation mechanisms is important for expanding agricultural production on saline soils. This study aimed to obtain a mechanism for the adaptation of hybrid and composites maize to NaCl stress through anion and cation absorption patterns. The experiments were carried out at the LLDikti Region X Laboratory from May to August 2016. The experiments were arranged in a factorial complete randomized design with three replications. The first factor was corn varieties, namely: hybrid corn (Pioneer 22 and Bisi 12), and composite corn (Bisma and Sukmaraga). The second factor was level of NaCl, namely: 0.0 mg kg-1 NaCl pH 5.0, and 4,000 mg kg-1 NaCl pH 5.0. Measurement of anions and cations using Spectroquant Thermoreator TR Nova 420. The adaptability of hybrid maize and composites to NaCl stress occurred through the mechanism of anion absorption and cation metabolism. The difference in the percentage of NO3-, NO2-, PO4-, NH4+, and K+ levels between hybrid maize varieties and composites showed a difference in the adaptation ability of maize varieties to salinity stress. Keywords: abiotic, mechanism, salinity, varieties

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Section: Hasil Dan Pembahasanunclassified

Mekanisme Adaptasi Jagung terhadap Cekaman NaCl: Pola Serapan Anion dan Kation

Utama¹,

Haryoko²

2020

J Agron Indonesia

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“…This shows that the high growth of rice varieties (Mekongga, Inpari 24, Inpari 27 and Inpari 28) has been hampered due to the presence of Fe 2+ stresses. The inhibition of the growth of the rice plant was thought to be due to the presence of barriers in the formation, photosynthetic translocation, and growth hormones that function to encourage the growth of rice plants [5,21,32]. Table 1 shows that, the growth of tillers formed using the SBSU System was able to increase the number of tillers by 62-76% (45-65 stems) with the percentage of productive tillers 34-49% (21-24 stems), whereas in conventional cultivation methods, the number tillers formed around 13-16 stems [18].…”

Section: Growthmentioning

confidence: 99%

“…The results of the analysis of iron content in parts of roots, stems, leaves, grain, and rice showed diversity in each variety and part of the plant. The presence of such diversity shows, there is a difference in tolerance of rice plants to iron stress (Tables 3 and 4) [21].…”

Section: Iron Distributionmentioning

confidence: 99%

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GROWTH AND PATTERNS OF DISTRIBUTION OF Fe2+ IONS IN SOME HYBRID RICE VARIETIES

Utama¹,

Sunadi²,

Haryoko³

2018

Preprint

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Increased production, many face increasingly complex challenges. The problem, which is not less important is the limited rice varieties tolerant to iron stress. The aim of the study was to obtain growth and distribution patterns of Fe2+ ions in several hybrid rice varieties. Experiment in Koto Baru, Sitiung I, Dharmasraya Regency, West Sumatra. The experiment used a completely randomized design, with five replications. The single factor is rice varieties, namely: Mekongga, Inpari 24, Inpari 27 and Inpari 28. The paddy fields used contain 104.69 mg kg-1 Fe2+, these concentrations greatly affect growth which causes poisoning. The production of milled dry grain in all varieties remained high even though it was iron-strapped, because the number of productive tillers formed in the SBSU system was more than 21 stems per clump, with production of grain weight > 5.4 Mg ha-1. The pattern of iron distribution occurs through absorption and translocation in the vegetative and generative phases to roots, stems, leaves, grain, and rice. The difference in iron levels in each part shows the ability of each variety to adapt. To obtain rice grains rich in iron and able to grow and produce well in iron-clamped conditions, it is recommended that aquaculture using the SBSU system with Inpari 27 varieties be able to produce iron content in rice grains of more than 27 mg kg-1 with production of grain weight 6.83 Mg ha-1.

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“…Therefore, the development of drought‐tolerant barley cultivars has become an important goal in plant breeding. Besides, as barley is more tolerant to abiotic stress than many other crops, it has gained attention as an important model species to further explore the basics of abiotic stress tolerance (Dawson et al , Saade et al ).…”

Section: Introductionmentioning

confidence: 99%

Plausible association between drought stress tolerance of barley (Hordeum vulgare L.) and programmed cell death via MC1 and TSN1 genes

Shamloo‐Dashtpagerdi¹,

Lindlöf

Aliakbari

et al. 2020

Physiologia Plantarum

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Studying the drought-responsive transcriptome is of high interest as it can serve as a blueprint for stress adaptation strategies. Despite extensive studies in this area, there are still many details to be uncovered, such as the importance of each gene involved in the stress response as well as the relationship between these genes and the physiochemical processes governing stress tolerance. This study was designed to address such important details and to gain insights into molecular responses of barley (Hordeum vulgare L.) to drought stress. To that, we combined RNA-seq data analysis with field and greenhouse drought experiments in a systems biology approach. RNA-sequence analysis identified a total of 665 differentially expressed genes (DEGs) belonging to diverse functional categories. A gene network was derived from the DEGs, which comprised of a total of 131 nodes and 257 edges. Gene network topology analysis highlighted two programmed cell death (PCD) modulating genes, MC1 (metacaspase 1) and TSN1 (Tudor-SN 1), as important (hub) genes in the predicted network. Based on the field trial, a drought-tolerant and a drought-susceptible barley genotype was identified from eight tested cultivars. Identified genotypes exhibited different physiochemical characteristics, including proline content, chlorophyll concentration, percentage of electrolyte leakage and malondialdehyde content as well as expression profiles of MC1 and TSN1 genes. Machine learning and correspondence analysis revealed a significant relationship between drought tolerance and measured characteristics in the context of PCD. Our study provides new insights which bridge barley drought tolerance to PCD through MC1 and TSN1 pathway.

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Genomic and Genetic Studies of Abiotic Stress Tolerance in Barley

Cited by 10 publications

References 253 publications

Mekanisme Adaptasi Jagung terhadap Cekaman NaCl: Pola Serapan Anion dan Kation

Mekanisme Adaptasi Jagung terhadap Cekaman NaCl: Pola Serapan Anion dan Kation

GROWTH AND PATTERNS OF DISTRIBUTION OF Fe2+ IONS IN SOME HYBRID RICE VARIETIES

Plausible association between drought stress tolerance of barley (Hordeum vulgare L.) and programmed cell death via MC1 and TSN1 genes

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