Trehalose Accumulation Triggers Autophagy during Plant Desiccation.

Abstract:

:Global climate change, increasingly erratic weather and a burgeoning global population are significant threats to the sustainability of future crop production. There is an urgent need for the development of robust measures that enable crops to withstand the uncertainty of climate change whilst still producing maximum yields. Resurrection plants possess the unique ability to withstand desiccation for prolonged periods, can be restored upon watering and represent great potential for the development of stress tolerant crops. Here, we describe the remarkable stress characteristics of Tripogon loliiformis, an uncharacterised resurrection grass and close relative of the economically important cereals, rice, sorghum, and maize. We show that T. loliiformis survives extreme environmental stress by implementing autophagy to prevent Programmed Cell Death. Notably, we identified a novel role for trehalose in the regulation of autophagy in T.loliiformis. Transcriptome, Gas Chromatography Mass Spectrometry, immunoblotting and confocal microscopy analyses directly linked the accumulation of trehalose with the onset of autophagy in dehydrating and desiccated T. loliiformis shoots. These results were supported in vitro with the observation of autophagosomes in trehalose treated T. loliiformis leaves; autophagosomes were not detected in untreated samples. Presumably, once induced, autophagy promotes desiccation tolerance in T.loliiformis, by removal of cellular toxins to suppress programmed cell death and the recycling of nutrients to delay the onset of senescence. These findings illustrate how resurrection plants manipulate sugar metabolism to promote desiccation tolerance and may provide candidate genes that are potentially useful for the development of stress tolerant crops.

journal_name

PLoS Genet

journal_title

PLoS genetics

authors

Williams B,Njaci I,Moghaddam L,Long H,Dickman MB,Zhang X,Mundree S

doi

10.1371/journal.pgen.1005705

subject

Has Abstract

pub_date

2015-12-03 00:00:00

pages

e1005705

issue

12

eissn

1553-7390

issn

1553-7404

pii

PGENETICS-D-15-00852

journal_volume

11

pub_type

杂志文章
  • Mutations in MAB21L2 result in ocular Coloboma, microcornea and cataracts.

    abstract::Ocular coloboma results from abnormal embryonic development and is often associated with additional ocular and systemic features. Coloboma is a highly heterogeneous disorder with many cases remaining unexplained. Whole exome sequencing from two cousins affected with dominant coloboma with microcornea, cataracts, and s...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1005002

    authors: Deml B,Kariminejad A,Borujerdi RH,Muheisen S,Reis LM,Semina EV

    更新日期:2015-02-26 00:00:00

  • Tempo and mode in evolution of transcriptional regulation.

    abstract::Perennial questions of evolutionary biology can be applied to gene regulatory systems using the abundance of experimental data addressing gene regulation in a comparative context. What is the tempo (frequency, rate) and mode (way, mechanism) of transcriptional regulatory evolution? Here we synthesize the results of 23...

    journal_title:PLoS genetics

    pub_type: 杂志文章,评审

    doi:10.1371/journal.pgen.1002432

    authors: Gordon KL,Ruvinsky I

    更新日期:2012-01-01 00:00:00

  • The actomyosin machinery is required for Drosophila retinal lumen formation.

    abstract::Multicellular tubes consist of polarized cells wrapped around a central lumen and are essential structures underlying many developmental and physiological functions. In Drosophila compound eyes, each ommatidium forms a luminal matrix, the inter-rhabdomeral space, to shape and separate the key phototransduction organel...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1004608

    authors: Nie J,Mahato S,Zelhof AC

    更新日期:2014-09-18 00:00:00

  • Conjugative DNA transfer induces the bacterial SOS response and promotes antibiotic resistance development through integron activation.

    abstract::Conjugation is one mechanism for intra- and inter-species horizontal gene transfer among bacteria. Conjugative elements have been instrumental in many bacterial species to face the threat of antibiotics, by allowing them to evolve and adapt to these hostile conditions. Conjugative plasmids are transferred to plasmidle...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1001165

    authors: Baharoglu Z,Bikard D,Mazel D

    更新日期:2010-10-21 00:00:00

  • Checkpoint Activation of an Unconventional DNA Replication Program in Tetrahymena.

    abstract::The intra-S phase checkpoint kinase of metazoa and yeast, ATR/MEC1, protects chromosomes from DNA damage and replication stress by phosphorylating subunits of the replicative helicase, MCM2-7. Here we describe an unprecedented ATR-dependent pathway in Tetrahymena thermophila in which the essential pre-replicative comp...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1005405

    authors: Sandoval PY,Lee PH,Meng X,Kapler GM

    更新日期:2015-07-28 00:00:00

  • Meta-analysis of genome-wide association studies in African Americans provides insights into the genetic architecture of type 2 diabetes.

    abstract::Type 2 diabetes (T2D) is more prevalent in African Americans than in Europeans. However, little is known about the genetic risk in African Americans despite the recent identification of more than 70 T2D loci primarily by genome-wide association studies (GWAS) in individuals of European ancestry. In order to investigat...

    journal_title:PLoS genetics

    pub_type: 杂志文章,meta分析

    doi:10.1371/journal.pgen.1004517

    authors: Ng MC,Shriner D,Chen BH,Li J,Chen WM,Guo X,Liu J,Bielinski SJ,Yanek LR,Nalls MA,Comeau ME,Rasmussen-Torvik LJ,Jensen RA,Evans DS,Sun YV,An P,Patel SR,Lu Y,Long J,Armstrong LL,Wagenknecht L,Yang L,Snively BM,

    更新日期:2014-08-07 00:00:00

  • Muscle-specific splicing factors ASD-2 and SUP-12 cooperatively switch alternative pre-mRNA processing patterns of the ADF/cofilin gene in Caenorhabditis elegans.

    abstract::Pre-mRNAs are often processed in complex patterns in tissue-specific manners to produce a variety of protein isoforms from single genes. However, mechanisms orchestrating the processing of the entire transcript are not well understood. Muscle-specific alternative pre-mRNA processing of the unc-60 gene in Caenorhabditi...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1002991

    authors: Ohno G,Ono K,Togo M,Watanabe Y,Ono S,Hagiwara M,Kuroyanagi H

    更新日期:2012-01-01 00:00:00

  • Multifaceted genome control by Set1 Dependent and Independent of H3K4 methylation and the Set1C/COMPASS complex.

    abstract::Histone modifiers are critical regulators of chromatin-based processes in eukaryotes. The histone methyltransferase Set1, a component of the Set1C/COMPASS complex, catalyzes the methylation at lysine 4 of histone H3 (H3K4me), a hallmark of euchromatin. Here, we show that the fission yeast Schizosaccharomyces pombe Set...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1004740

    authors: Mikheyeva IV,Grady PJ,Tamburini FB,Lorenz DR,Cam HP

    更新日期:2014-10-30 00:00:00

  • Pleiotropic role of Drosophila phosphoribosyl pyrophosphate synthetase in autophagy and lysosome homeostasis.

    abstract::Phosphoribosyl pyrophosphate synthetase (PRPS) is a rate-limiting enzyme whose function is important for the biosynthesis of purines, pyrimidines, and pyridines. Importantly, while missense mutations of PRPS1 have been identified in neurological disorders such as Arts syndrome, how they contribute to neuropathogenesis...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1008376

    authors: Delos Santos K,Kim M,Yergeau C,Jean S,Moon NS

    更新日期:2019-09-05 00:00:00

  • Vestigialization of an allosteric switch: genetic and structural mechanisms for the evolution of constitutive activity in a steroid hormone receptor.

    abstract::An important goal in molecular evolution is to understand the genetic and physical mechanisms by which protein functions evolve and, in turn, to characterize how a protein's physical architecture influences its evolution. Here we dissect the mechanisms for an evolutionary shift in function in the mollusk ortholog of t...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1004058

    authors: Bridgham JT,Keay J,Ortlund EA,Thornton JW

    更新日期:2014-01-01 00:00:00

  • Germline progenitors escape the widespread phenomenon of homolog pairing during Drosophila development.

    abstract::Homolog pairing, which plays a critical role in meiosis, poses a potential risk if it occurs in inappropriate tissues or between nonallelic sites, as it can lead to changes in gene expression, chromosome entanglements, and loss-of-heterozygosity due to mitotic recombination. This is particularly true in Drosophila, wh...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1004013

    authors: Joyce EF,Apostolopoulos N,Beliveau BJ,Wu CT

    更新日期:2013-01-01 00:00:00

  • Heat-induced release of epigenetic silencing reveals the concealed role of an imprinted plant gene.

    abstract::Epigenetic mechanisms suppress the transcription of transposons and DNA repeats; however, this suppression can be transiently released under prolonged heat stress. Here we show that the Arabidopsis thaliana imprinted gene SDC, which is silent during vegetative growth due to DNA methylation, is activated by heat and co...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1004806

    authors: Sanchez DH,Paszkowski J

    更新日期:2014-11-20 00:00:00

  • ATPase-independent type-III protein secretion in Salmonella enterica.

    abstract::Type-III protein secretion systems are utilized by gram-negative pathogens to secrete building blocks of the bacterial flagellum, virulence effectors from the cytoplasm into host cells, and structural subunits of the needle complex. The flagellar type-III secretion apparatus utilizes both the energy of the proton moti...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1004800

    authors: Erhardt M,Mertens ME,Fabiani FD,Hughes KT

    更新日期:2014-11-13 00:00:00

  • Common Cell Shape Evolution of Two Nasopharyngeal Pathogens.

    abstract::Respiratory infectious diseases are the third cause of worldwide death. The nasopharynx is the portal of entry and the ecological niche of many microorganisms, of which some are pathogenic to humans, such as Neisseria meningitidis and Moraxella catarrhalis. These microbes possess several surface structures that intera...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1005338

    authors: Veyrier FJ,Biais N,Morales P,Belkacem N,Guilhen C,Ranjeva S,Sismeiro O,Péhau-Arnaudet G,Rocha EP,Werts C,Taha MK,Boneca IG

    更新日期:2015-07-10 00:00:00

  • A Parallel G Quadruplex-Binding Protein Regulates the Boundaries of DNA Elimination Events of Tetrahymena thermophila.

    abstract::Guanine (G)-rich DNA readily forms four-stranded quadruplexes in vitro, but evidence for their participation in genome regulation is limited. We have identified a quadruplex-binding protein, Lia3, that controls the boundaries of germline-limited, internal eliminated sequences (IESs) of Tetrahymena thermophila. Differe...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1005842

    authors: Carle CM,Zaher HS,Chalker DL

    更新日期:2016-03-07 00:00:00

  • A trans-acting Variant within the Transcription Factor RIM101 Interacts with Genetic Background to Determine its Regulatory Capacity.

    abstract::Most genetic variants associated with disease occur within regulatory regions of the genome, underscoring the importance of defining the mechanisms underlying differences in regulation of gene expression between individuals. We discovered a pair of co-regulated, divergently oriented transcripts, AQY2 and ncFRE6, that ...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1005746

    authors: Read T,Richmond PA,Dowell RD

    更新日期:2016-01-11 00:00:00

  • The Parkinson's Disease-Associated Protein Kinase LRRK2 Modulates Notch Signaling through the Endosomal Pathway.

    abstract::Leucine-rich repeat kinase 2 (LRRK2) is a key molecule in the pathogenesis of familial and idiopathic Parkinson's disease (PD). We have identified two novel LRRK2-associated proteins, a HECT-type ubiquitin ligase, HERC2, and an adaptor-like protein with six repeated Neuralized domains, NEURL4. LRRK2 binds to NEURL4 an...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1005503

    authors: Imai Y,Kobayashi Y,Inoshita T,Meng H,Arano T,Uemura K,Asano T,Yoshimi K,Zhang CL,Matsumoto G,Ohtsuka T,Kageyama R,Kiyonari H,Shioi G,Nukina N,Hattori N,Takahashi R

    更新日期:2015-09-10 00:00:00

  • Identification of Elg1 interaction partners and effects on post-replication chromatin re-formation.

    abstract::Elg1, the major subunit of a Replication Factor C-like complex, is critical to ensure genomic stability during DNA replication, and is implicated in controlling chromatin structure. We investigated the consequences of Elg1 loss for the dynamics of chromatin re-formation following DNA replication. Measurement of Okazak...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1007783

    authors: Gali VK,Dickerson D,Katou Y,Fujiki K,Shirahige K,Owen-Hughes T,Kubota T,Donaldson AD

    更新日期:2018-11-12 00:00:00

  • Genetic and anatomical basis of the barrier separating wakefulness and anesthetic-induced unresponsiveness.

    abstract::A robust, bistable switch regulates the fluctuations between wakefulness and natural sleep as well as those between wakefulness and anesthetic-induced unresponsiveness. We previously provided experimental evidence for the existence of a behavioral barrier to transitions between these states of arousal, which we call n...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1003605

    authors: Joiner WJ,Friedman EB,Hung HT,Koh K,Sowcik M,Sehgal A,Kelz MB

    更新日期:2013-01-01 00:00:00

  • CRP-cAMP mediates silencing of Salmonella virulence at the post-transcriptional level.

    abstract::Invasion of epithelial cells by Salmonella enterica requires expression of genes located in the pathogenicity island I (SPI-1). The expression of SPI-1 genes is very tightly regulated and activated only under specific conditions. Most studies have focused on the regulatory pathways that induce SPI-1 expression. Here, ...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1007401

    authors: El Mouali Y,Gaviria-Cantin T,Sánchez-Romero MA,Gibert M,Westermann AJ,Vogel J,Balsalobre C

    更新日期:2018-06-07 00:00:00

  • A nonsynonymous polymorphism in semaphorin 3A as a risk factor for human unexplained cardiac arrest with documented ventricular fibrillation.

    abstract::Unexplained cardiac arrest (UCA) with documented ventricular fibrillation (VF) is a major cause of sudden cardiac death. Abnormal sympathetic innervations have been shown to be a trigger of ventricular fibrillation. Further, adequate expression of SEMA3A was reported to be critical for normal patterning of cardiac sym...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1003364

    authors: Nakano Y,Chayama K,Ochi H,Toshishige M,Hayashida Y,Miki D,Hayes CN,Suzuki H,Tokuyama T,Oda N,Suenari K,Uchimura-Makita Y,Kajihara K,Sairaku A,Motoda C,Fujiwara M,Watanabe Y,Yoshida Y,Ohkubo K,Watanabe I,Nogami A,

    更新日期:2013-04-01 00:00:00

  • KdmB, a Jumonji Histone H3 Demethylase, Regulates Genome-Wide H3K4 Trimethylation and Is Required for Normal Induction of Secondary Metabolism in Aspergillus nidulans.

    abstract::Histone posttranslational modifications (HPTMs) are involved in chromatin-based regulation of fungal secondary metabolite biosynthesis (SMB) in which the corresponding genes-usually physically linked in co-regulated clusters-are silenced under optimal physiological conditions (nutrient-rich) but are activated when nut...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1006222

    authors: Gacek-Matthews A,Berger H,Sasaki T,Wittstein K,Gruber C,Lewis ZA,Strauss J

    更新日期:2016-08-22 00:00:00

  • Marine environmental DNA biomonitoring reveals seasonal patterns in biodiversity and identifies ecosystem responses to anomalous climatic events.

    abstract::Marine ecosystems are changing rapidly as the oceans warm and become more acidic. The physical factors and the changes to ocean chemistry that they drive can all be measured with great precision. Changes in the biological composition of communities in different ocean regions are far more challenging to measure because...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1007943

    authors: Berry TE,Saunders BJ,Coghlan ML,Stat M,Jarman S,Richardson AJ,Davies CH,Berry O,Harvey ES,Bunce M

    更新日期:2019-02-08 00:00:00

  • Spatial fluctuations in expression of the heterocyst differentiation regulatory gene hetR in Anabaena filaments.

    abstract::Under nitrogen deprivation, filaments of the cyanobacterium Anabaena undergo a process of development, resulting in a one-dimensional pattern of nitrogen-fixing heterocysts separated by about ten photosynthetic vegetative cells. Many aspects of gene expression before nitrogen deprivation and during the developmental p...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1005031

    authors: Corrales-Guerrero L,Tal A,Arbel-Goren R,Mariscal V,Flores E,Herrero A,Stavans J

    更新日期:2015-04-01 00:00:00

  • Human social genomics.

    abstract::A growing literature in human social genomics has begun to analyze how everyday life circumstances influence human gene expression. Social-environmental conditions such as urbanity, low socioeconomic status, social isolation, social threat, and low or unstable social status have been found to associate with differenti...

    journal_title:PLoS genetics

    pub_type: 杂志文章,评审

    doi:10.1371/journal.pgen.1004601

    authors: Cole SW

    更新日期:2014-08-28 00:00:00

  • Homeobox transcription factors are required for conidiation and appressorium development in the rice blast fungus Magnaporthe oryzae.

    abstract::The appropriate development of conidia and appressoria is critical in the disease cycle of many fungal pathogens, including Magnaporthe oryzae. A total of eight genes (MoHOX1 to MoHOX8) encoding putative homeobox transcription factors (TFs) were identified from the M. oryzae genome. Knockout mutants for each MoHOX gen...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1000757

    authors: Kim S,Park SY,Kim KS,Rho HS,Chi MH,Choi J,Park J,Kong S,Park J,Goh J,Lee YH

    更新日期:2009-12-01 00:00:00

  • Reprogramming of H3K27me3 is critical for acquisition of pluripotency from cultured Arabidopsis tissues.

    abstract::In plants, multiple detached tissues are capable of forming a pluripotent cell mass, termed callus, when cultured on media containing appropriate plant hormones. Recent studies demonstrated that callus resembles the root-tip meristem, even if it is derived from aerial organs. This finding improves our understanding of...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1002911

    authors: He C,Chen X,Huang H,Xu L

    更新日期:2012-08-01 00:00:00

  • Genetic diversity in the interference selection limit.

    abstract::Pervasive natural selection can strongly influence observed patterns of genetic variation, but these effects remain poorly understood when multiple selected variants segregate in nearby regions of the genome. Classical population genetics fails to account for interference between linked mutations, which grows increasi...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1004222

    authors: Good BH,Walczak AM,Neher RA,Desai MM

    更新日期:2014-03-27 00:00:00

  • Identifying neural substrates of competitive interactions and sequence transitions during mechanosensory responses in Drosophila.

    abstract::Nervous systems have the ability to select appropriate actions and action sequences in response to sensory cues. The circuit mechanisms by which nervous systems achieve choice, stability and transitions between behaviors are still incompletely understood. To identify neurons and brain areas involved in controlling the...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1008589

    authors: Masson JB,Laurent F,Cardona A,Barré C,Skatchkovsky N,Zlatic M,Jovanic T

    更新日期:2020-02-14 00:00:00

  • Whole genome variant association across 100 dogs identifies a frame shift mutation in DISHEVELLED 2 which contributes to Robinow-like syndrome in Bulldogs and related screw tail dog breeds.

    abstract::Domestic dog breeds exhibit remarkable morphological variations that result from centuries of artificial selection and breeding. Identifying the genetic changes that contribute to these variations could provide critical insights into the molecular basis of tissue and organismal morphogenesis. Bulldogs, French Bulldogs...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1007850

    authors: Mansour TA,Lucot K,Konopelski SE,Dickinson PJ,Sturges BK,Vernau KL,Choi S,Stern JA,Thomasy SM,Döring S,Verstraete FJM,Johnson EG,York D,Rebhun RB,Ho HH,Brown CT,Bannasch DL

    更新日期:2018-12-06 00:00:00