Abscisic acid transporters cooperate to control seed germination

Kang, Jae Sik; Yim, Sojeong; Choi, Hyunju; Kim, Areum; Lee, Keun Pyo; Lopez‐Molina, Luis; Martinoia, Enrico; Lee, Youngsook

doi:10.1038/ncomms9113

Cited by 206 publications

(228 citation statements)

References 63 publications

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“…This way, we accounted for Kang et al. () who reported that abscisic acid (ABA) and gibberellin (GA) status as well as environmental factors, such as light quality, temperature and water potential, may exert major effects on seed germination. Nevertheless, the presence of maternal genetic and epigenetic effects on seed germination cannot be precluded from the experiments.…”

Section: Discussionmentioning

confidence: 99%

Genetic regulation of growth and nutrient content under phosphorus deficiency in the wild barley introgression library S42IL

et al. 2017

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Phosphorus (P) is an important macronutrient required for plant growth and yield formation. Since decades, breeders aim to optimize P efficiency in crops. We studied a set of 47 wild barley (Hordeum vulgare ssp. spontaneum, Hsp) introgression lines (ILs) in hydroponic culture to identify quantitative trait loci (QTLs) improving growth and nutrient content under P deficiency. Applying a mixed model analysis, a total of 91 independent QTLs were located among 39 ILs, of which 64 QTLs displayed trait‐improving Hsp effects. For example, an unknown Hsp allele on barley chromosome 4H increased shoot dry weight under P deficiency in three overlapping ILs by 25.9%. Likewise, an Hsp allele on barley chromosome 6H increased root dry weight under P deficiency in two overlapping ILs by 27.6%. In total, 31 QTLs confirmed Hsp effects already identified in previous field and glasshouse experiments with the same ILs. We conclude that wild barley contains numerous trait‐improving QTL alleles, which are active under P deficiency. In future, the underlying genes can be subjected to cloning and, simultaneously, used in elite barley breeding.

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Section: Discussionmentioning

confidence: 99%

Genetic regulation of growth and nutrient content under phosphorus deficiency in the wild barley introgression library S42IL

et al. 2017

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“…ABA is a hormone that plays a vital role during the dormancy-to-germination transition (Finkelstein et al, 2002; Nambara and Marion-Poll, 2003; Chen et al, 2008; Kang et al, 2015). ABSCISIC ACID INSENSITIVE3 (ABI3) is an important transcription factor in the ABA signaling pathway (Finkelstein et al, 2008), participating in many different development stages including plastid development (Rohde et al, 2000), bud dormancy and flowering time (Rohde et al, 2002), lateral root development (Brady et al, 2003), desiccation tolerance (Khandelwal et al, 2010), and leaf development (Rohde et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Cucumber CsBPCs Regulate the Expression of CsABI3 during Seed Germination

Liu

Bai

et al. 2017

Front. Plant Sci.

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Cucumber seeds with shallow dormancy start to germinate in fruit that are harvested late. ABSCISIC ACID INSENSITIVE3 (ABI3), a transcription factor in the abscisic acid (ABA) signaling pathway, is one of the most important regulators in the transition from late embryogenesis to germination. Our analysis found a candidate cis-regulatory motif for cucumber BASIC PENTACYSTEINE (CsBPC) in the promoter of CsABI3. Yeast one-hybrid and chromatin immunoprecipitation (ChIP) assays showed that CsBPCs bound to the promoter of CsABI3. Examination of β-glucuronidase (GUS) activity driven by the CsABI3 promoter in transgenic Arabidopsis thaliana plants overexpressing CsBPCs and a Nicotiana benthamiana (tobacco) luciferase assay indicated that CsBPCs inhibited the expression of CsABI3. Transgenic plants overexpressing CsBPCs were constructed to confirm that CsBPCs participates in the control of seed germination. This study of the cucumber BPC-ABI3 pathway will help to explore and characterize the molecular mechanisms underlying seed germination and will provide necessary information for seed conservation in agriculture and forestry.

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“…[4][5][6] At the same time, with the rapid development of society and increase of population, plant hormones are playing an indispensable role in agriculture, such as promoting fruit ripening and leaf drop, accelerating seed germination and budding, resisting agricultural natural disaster and increasing crop yields, etc. [7][8][9][10] Plant hormones are found not only in higher plants, but also in algae, and in plant-associated bacteria and fungi. [11][12][13] However, in this case, plant hormones are not the essential small molecular necessary to the growth and reproduction of the microorganisms.…”

Section: Introductionmentioning

confidence: 99%

Microbial production of plant hormones: Opportunities and challenges

et al. 2016

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Plant hormones are a class of organic substances which are synthesized during the plant metabolism. They have obvious physiological effect on plant growth at very low concentrations. Generally, plant hormones are mainly divided into 5 categories: auxins, cytokinins, ethylene, gibberellins (GAs) and abscisic acid (ABA). With the deepening of research, some novel plant hormones such as brassinosteroid and salicylates have been found and identified. The plant hormone products are mainly obtained through plant extraction, chemical synthesis as well as microbial fermentation. However, the extremely low yield in plants and relatively complex chemical structure limit the development of the former 2 approaches. Therefore, more attention has been paid into the microbial fermentative production. In this commentary, the developments and technological achievements of the 2 important plant hormones (GAs and ABA) have been discussed. The discovery, producing strains, fermentation technologies, and their accumulation mechanisms are first introduced. Furthermore, progresses in the industrial mass scale production are discussed. Finally, guidelines for future studies for GAs and ABA production are proposed in light of the current progress, challenges and trends in the field. With the widespread use of plant hormones in agriculture, we believe that the microbial production of plant hormones will have a bright future.

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Abscisic acid transporters cooperate to control seed germination

Cited by 206 publications

References 63 publications

Genetic regulation of growth and nutrient content under phosphorus deficiency in the wild barley introgression library S42IL

Genetic regulation of growth and nutrient content under phosphorus deficiency in the wild barley introgression library S42IL

Cucumber CsBPCs Regulate the Expression of CsABI3 during Seed Germination

Microbial production of plant hormones: Opportunities and challenges

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