Casparian strip development and its potential function in salt tolerance

Chen, Tong; Cai, Xia; Wu, Xiaoqin; Karahara, Ichirou; Schreiber, Lukas; Lin, Jinxing

doi:10.4161/psb.6.10.17054

Cited by 100 publications

(78 citation statements)

References 29 publications

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“…Suberin deposition may also be important for preventing bulk movement of water out of the stele. This role is consistent with observations that suberin deposition can be enhanced in more mature regions of the root (Naseer et al, 2012) and in response to environmental stress (Chen et al, 2011). However, experimental results regarding the importance of the suberin lamellae in controlling the radial hydraulic conductivity of roots have been variable, with both positive and negative effects observed (Steudle and Peterson, 1998;Baxter et al, 2009;Ranathunge and Schreiber, 2011).…”

Section: Endodermal Barriers As Regulators Of Water and Nutrient Uptakesupporting

confidence: 89%

“…Under drought conditions, suberization in the endodermis can be accelerated and may prevent the desiccation of inner tissue layers (Enstone et al, 2002;Henry et al, 2012). Thus, the Casparian strip and suberin lamellae not only prevent uptake of toxic compounds but may also prevent the loss of water under unfavorable environments (Soukup et al, 2007;Baxter et al, 2009;Chen et al, 2011).…”

Section: Endodermis As a Communication Center During Root Responses Tmentioning

confidence: 99%

See 1 more Smart Citation

Beyond the Barrier: Communication in the Root through the Endodermis

Robbins¹,

Trontin²,

Duan³

et al. 2014

PLANT PHYSIOLOGY

101

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The root endodermis is characterized by the Casparian strip and by the suberin lamellae, two hydrophobic barriers that restrict the free diffusion of molecules between the inner cell layers of the root and the outer environment. The presence of these barriers and the position of the endodermis between the inner and outer parts of the root require that communication between these two domains acts through the endodermis. Recent work on hormone signaling, propagation of calcium waves, and plant-fungal symbiosis has provided evidence in support of the hypothesis that the endodermis acts as a signaling center. The endodermis is also a unique mechanical barrier to organogenesis, which must be overcome through chemical and mechanical cross talk between cell layers to allow for development of new lateral organs while maintaining its barrier functions. In this review, we discuss recent findings regarding these two important aspects of the endodermis.

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Section: Endodermal Barriers As Regulators Of Water and Nutrient Uptakesupporting

confidence: 89%

Section: Endodermis As a Communication Center During Root Responses Tmentioning

confidence: 99%

Beyond the Barrier: Communication in the Root through the Endodermis

Robbins¹,

Trontin²,

Duan³

et al. 2014

PLANT PHYSIOLOGY

101

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show abstract

“…Lignin is a phenylpropanoid compound derived from phenylalanine. Lignin and suberin could deposit in the primary cell wall and form into the Casparian strip in vascular plant roots, which appears as a tight barrier that reduces non-selective apoplastic transport of toxic solutes into the stelar tissues under alkaline-salt conditions (Chen et al, 2011). …”

Section: Discussionmentioning

confidence: 99%

Identification and Analysis of NaHCO3 Stress Responsive Genes in Wild Soybean (Glycine soja) Roots by RNA-seq

et al. 2016

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Soil alkalinity is a major abiotic constraint to crop productivity and quality. Wild soybean (Glycine soja) is considered to be more stress-tolerant than cultivated soybean (G. max), and has considerable genetic variation for increasing alkalinity tolerance of soybean. In this study, we analyzed the transcriptome profile in the roots of an alkalinity tolerant wild soybean variety N24852 at 12 and 24 h after 90 mM NaHCO3 stress by RNA-sequencing. Compared with the controls, a total of 449 differentially expressed genes (DEGs) were identified, including 95 and 140 up-regulated genes, and 108 and 135 down-regulated genes at 12 and 24 h after NaHCO3 treatment, respectively. Quantitative RT-PCR analysis of 14 DEGs showed a high consistency with their expression profiles by RNA-sequencing. Gene Ontology (GO) terms related to transcription factors and transporters were significantly enriched in the up-regulated genes at 12 and 24 h after NaHCO3 stress, respectively. Nuclear factor Y subunit A transcription factors were enriched at 12 h after NaHCO3 stress, and high percentages of basic helix-loop-helix, ethylene-responsive factor, Trihelix, and zinc finger (C2H2, C3H) transcription factors were found at both 12 and 24 h after NaHCO3 stress. Genes related to ion transporters such as ABC transporter, aluminum activated malate transporter, glutamate receptor, nitrate transporter/proton dependent oligopeptide family, and S-type anion channel were enriched in up-regulated DEGs at 24 h after NaHCO3 treatment, implying their roles in maintaining ion homeostasis in soybean roots under alkalinity. Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis showed “phenylpropanoid biosynthesis” and “phenylalanine metabolism” pathways might participate in soybean response to alkalinity. This study provides a foundation to further investigate the functions of NaHCO3 stress-responsive genes and the molecular basis of soybean tolerance to alkalinity.

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“…Masuknya ion natrium dan klorida ke tubuh tanaman melalui mekanisme pasif (aliran massa) dan aktif (pompa ion Na et al, 2015). Endodermis berperang penting dalam mengatur transpor ion secara radial dari larutan tanah menuju xilem akar, hal ini karena pita caspari bersifat impermeable sehingga mencegah terjadinya pergerakan larutan secara apoplastik (Chen et al, 2011).…”

Section: Pertumbuhan Vegetatifunclassified

Perubahan morfologis dan anatomis kelapa sawit pada rezim air dan salinitas berbeda

Firmansyah

2018

J. AGRO

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Salinitas tinggi dan genangan dapat terjadi pada tempat dan waktu yang sama; meskipun demikian pemahaman terhadap pengaruh kedua kondisi tersebut terhadap pertumbuhan, respon morfologis, dan anatomis kelapa sawit masih sedikit. Telah dilakukan penelitian dengan mengkombinasikan 2 aras salinitas (non salin dan salin) dan tiga taraf genangan (tanpa genangan, interval genangan 2 minggu, dan interval genangan 4 minggu). Penelitian dilakukan dalam pot selama 4 bulan dengan bahan tanam kelapa sawit berumur 4 bulan. Parameter pertumbuhan dianalisis dengan analisis varian dan dilanjutkan dengan uji jarak berganda Duncan pada jenjang nyata 5%. Pengamatan visual secara langsung dan pembuatan preparat melintang akar dilakukan untuk mengetahui perubahan morfologi dan anatomi tanaman. Hasil analisis menunjukkan salinitas tinggi dan genangan konsisten menurunkan parameter pertumbuhan kelapa sawit. Salinitas tinggi dan genangan tidak secara konsisten mengubah rasio luas masing-masing jaringan penyusun akar primer, sekunder, dan tersier. Kelapa sawit membentuk pneumatophore dan saluran aerenkima pada kondisi genangan, baik non salin maupun salin. Mekanisme adaptasi terhadap genangan tersebut dapat menurunkan pengaruh negatif cekaman salinitas tinggi. High salinity and waterlogging can occur at the same place and time; however, the effects of these two conditions on growth, morphological, and anatomical responses of oil palm was not fully understood. A research had been done by combining two levels of salinity (non saline and saline) and three levels of waterlogging (without waterlogging, two-week waterlogging intervals, and four-week waterlogging intervals). The study was conducted in pots for 4 months used 4 months old oil palm planting material. The growth parameters were analyzed by analysis variance continued by Duncan multiple-range test at 5% level of convidence. The morphological and anatomical changes of plants were observed trought direct observation and root cross section. The results showed that high salinity and waterlogging consistently decreased the oil palm growth parameter. High salinity and waterlogging did not consistently change the ratio of the area of each primary, secondary, and tertiary root tissue. Palm oil formed pneumatophores and aerenchyma under both non saline and saline waterlogging. Adaptation mechanisms to these waterlogging could reduce the negative effects of high salinity stress.

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Casparian strip development and its potential function in salt tolerance

Cited by 100 publications

References 29 publications

Beyond the Barrier: Communication in the Root through the Endodermis

Beyond the Barrier: Communication in the Root through the Endodermis

Identification and Analysis of NaHCO3 Stress Responsive Genes in Wild Soybean (Glycine soja) Roots by RNA-seq

Perubahan morfologis dan anatomis kelapa sawit pada rezim air dan salinitas berbeda

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