Expression of LHC Genes and their Relation to Photo-Oxidative Stress Tolerance Tolerance in Solanum lycopersicum L. and Solanum chilense (Dunal) Reiche

Chilian, Javier; Verdugo, Isabel; Poblete, Fernando; Ruíz-Lara, Simón; Casaretto, José A.; González, Enrique

doi:10.4067/s0718-58392011000400002

Cited by 3 publications

(4 citation statements)

References 57 publications

(59 reference statements)

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“…To make the results of this study comparable to other studies on cold tolerance in tomato species (Smillie & Nott 1979;Jung et al 1998;Venema et al 1999;Chilian et al 2011;Liu et al 2012;Easlon et al 2013), we estimated the following parameters: plant growth rates, leaf wilting, vegetative tissue injury and survival rates and a maximum potential quantum yield of photosystem PSII (measured as a ratio of variable to maximum fluorescence emitted by plant leaves in the darkadapted state, Fv/Fm). Shoot wilting rates reflect the plant's ability to maintain cell turgor under chilling (Easlon et al 2013).…”

Section: Low-temperature Stress Experimentsmentioning

confidence: 99%

Adaptation to low temperatures in the wild tomato species Solanum chilense

et al. 2016

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Molecular adaptation to abiotic stresses in plants is a complex process based mainly on the modifications of gene transcriptional activity and the alteration of protein-protein interactions. We used a combination of population genetic, comparative transcriptomic and plant physiology approaches to investigate the mechanisms of adaptation to low temperatures in Solanum chilense populations distributed along Andean altitudinal gradients. We found that plants from all populations have high chilling tolerance, which does not correlate with temperatures in their native habitats. In contrast, tolerance to freezing shows a significant association with altitude and temperature variables. We also observed the differences in expression patterns of cold-response genes between plants from high- and low-altitude populations. These results suggest that genetic adaptations to low temperatures evolved in high-altitude populations of S. chilense. At the transcriptional level, these adaptations may include high levels of constitutive expression of the genes encoding ICE1, the key transcription factor of the cold signalling pathway, and chloroplast ω-3 fatty acid desaturase FAD7. At the sequence level, a signature of selection associated with the adaptation to high altitudes was detected at the C-terminal part of ICE1 encoding the ACT regulatory domain.

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Section: Low-temperature Stress Experimentsmentioning

confidence: 99%

Adaptation to low temperatures in the wild tomato species Solanum chilense

et al. 2016

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“…Based on the evolutionary relationships indicated by the phylogenetic tree, the Lhc gene family was categorized into ve subfamilies: Lhca, Lhcb, CP269 (Lhcb5), CP24 (Lhcb6), and CP29 (Lhcb4) 20 . The Lhca subfamily has the highest number of members (21) in the T. obliquus, followed by the Lhcb subfamily (8), CP26 (Lhcb5), and CP24 (Lhcb6) subfamilies (1 each), while the CP29 (Lhcb4) subfamily has the fewest members (0) (Fig. 1).…”

Section: Resultsmentioning

confidence: 99%

“…The whole-genome sequencing and assembly of many biological species have advanced signi cantly with the quick development of high-throughput sequencing technology, offering a strong basis for the precise identi cation of gene family members. Systematic analyses have been conducted in recent years on some economic crops, such as tea (Camellia sinensis) 19 , apple (Malus domestica) 20 , tomato (Solanum lycopersicum) 21 , and cotton (Gossypium hirsutum) 22 . However, there is no related report on T. obliquus.…”

Section: Introductionmentioning

confidence: 99%

Genome-Wide Identification, Characterization and Expression Analysis of the Lhc Gene Family in Tetradesmus obliquus

Tan,

Ma,

Cai

et al. 2024

Preprint

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The process of photosynthesis depends heavily on the light-harvesting chlorophyll a/b-binding proteins (Lhc). However, to date, there has been a lack of systematic understanding of the Lhc gene family members in T. obliquus. This study conducted a systematic identification and analysis of the Lhc family genes in T. obliquus using bioinformatics. The findings show that 33 ToLhc genes in total, dispersed unevenly over 14 chromosomes, were found in T. obliquus. Most ToLhc genes encode stable proteins, with the majority predicted to localize in the chloroplast. The most prevalent cis-acting elements were those linked to both biotic and abiotic stress responses, according to analysis.RT-qPCR analysis showed that all ToLhc genes were down-regulated under 6 mg/L Cr6+ conditions, except for ToLhca1/5.3 and ToLhcb1.1, which maintained expression levels. This study systematically identified and characterized members of the ToLhc gene family in the green algae T. obliquus. Additionally, it offered an initial comprehension of the expression patterns of 33 genes under Cr6+ heavy metal stress. The aim was to assess and predict the ecological risk of heavy metal Cr6+ pollution to aquatic organisms, and to offer a theoretical framework for assessing how Cr6+ affects algae.

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“…Catalases and peroxidases, two primary enzymes of the major antioxidant system, were downregulated in P. rapae reared on COTI diets. These antioxidant enzymes convert hydrogen peroxide to water and oxygen, thus preventing reactive oxygen species (ROS) damage to proteins, nucleic acids, and lipids (Chilian et al., ). They also contribute to stabilization of extracellular matrices, immunity, and detoxification (Cariño, Koener, & Feyereisen, ).…”

Section: Discussionmentioning

confidence: 99%

Comparative transcriptome analysis provides insights of anti‐insect molecular mechanism of Cassia obtusifolia trypsin inhibitor against Pieris rapae

Xiang

Zhang

Yin

et al. 2017

Arch Insect Biochem Physiol

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Pieris rapae, a serious Lepidoptera pest of cultivated crucifers, utilizes midgut enzymes to digest food and detoxify secondary metabolites from host plants. A recombinant trypsin inhibitor (COTI)1 from nonhost plant, Cassia obtusifolia, significantly decreased activities of trypsin-like proteases in the larval midgut on Pieris rapae and could suppress the growth of larvae. In order to know how COTI took effect, transcriptional profiles of P. rapae midgut in response to COTI was studied. A total of 51,544 unigenes were generated and 45.86% of which had homologs in public databases. Most of the regulated genes associated with digestion, detoxification, homeostasis, and resistance were downregulated after ingestion of COTI. Meanwhile, several unigenes in the integrin signaling pathway might be involved in response to COTI. Furthermore, using comparative transcriptome analysis, we detected differently expressing genes and identified a new reference gene, UPF3, by qRT-polymerase chain reaction (PCR). Therefore, it was suggested that not only proteolysis inhibition, but also suppression of expression of genes involved in metabolism, development, signaling, and defense might account for the anti-insect resistance of COTI. K E Y W O R D SCassia obtusifolia, nonhost plant, physiological response, Pieris rapae, trypsin inhibitor

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Expression of LHC Genes and their Relation to Photo-Oxidative Stress Tolerance Tolerance in Solanum lycopersicum L. and Solanum chilense (Dunal) Reiche

Cited by 3 publications

References 57 publications

Adaptation to low temperatures in the wild tomato species Solanum chilense

Adaptation to low temperatures in the wild tomato species Solanum chilense

Genome-Wide Identification, Characterization and Expression Analysis of the Lhc Gene Family in Tetradesmus obliquus

Comparative transcriptome analysis provides insights of anti‐insect molecular mechanism of Cassia obtusifolia trypsin inhibitor against Pieris rapae

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