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Functional genomics of abiotic and biotic stress responses
Biotic stress responses
Geminivirus-host interactions
Abiotic stress response
• ER stress response
• Water and salt stress
• Integration of signaling pathways
DOES THE MANIPULATIONOF BiP LEVELS IN THE ER
CONFER PROTECTION AGAINST STRESSES????
DBB/BIOAGRO/UFV
BiP LEVELS INCREASE IN TOBACCO PLANTS EXPRESSING A SOYBEAN BiP GENE
1 2 A5 A10 A15 A16 S1 S3 S6 S7
Control Antisense Sense
soyBiPD35S-PnptIInos-P 3’nos 3’nosLB RB
Xba I EcoRI
TransgeneXba I
SOYBEAN BiP CONFERS TOLERANCE TOWATER STRESS IN TOBACCO
Sense
Control
DBB/BIOAGRO/UFV
Plant Physiology 126: 1042-1054, 2001
Water Potetial
-2.5
-2
-1.5
-1
-0.5
0
C S AS
Treatments
Yw
(M
Pa)
Efficiency Photosynthesis
0.750.770.790.810.830.85
C I C E S I S E AS I AS E
Treatments
Fv
/Fm
Peroxidase
0
10
20
30
0 5 10 15 20 25 30 35
Duration of the experimement (days)
un
id A
PX
.m
in-1
.
mg
-1 p
rote
in
C E
S E
A S E
Superoxide Dismutase
0
5
10
15
20
25
30
0 5 10 15 20 25 30 35
Duration of the experimement (days)u
nid
SO
D.
mg
-1 p
rote
in
C E
S E
A S E
Physiological performance of BiP-overexpressingtobacco lines under water deficit
C9-2 C9-3 C9-5 A8-7 A8-8Wt Wt
Control Sense
ECTOPIC EXPRESSION OF SOYBIPD GENE IN SOYBEAN ENHANCES TOLERANCE TO WATER STRESS
Transgenic plant Wild type
THE MOLECULAR MECHANISM UNDERLYING BIP-MEDIATED WATER
STRESS TOLERANCE?????????
Desenho experimental
H2O
H2O
AZC
PEG
TUN DMSO
Transcriptômica
Fundamentos da técnica de microarrays
PEG Cy5 X Untreated Cy3
TUN Cy3 X Untreated Cy5
Induced transcriptome by AZC, TUN and
PEG treatments.
5161 97
TUNAZC
ER stress transcriptionalresponse
9
42
7
TUNAZC
8
9053
68
PEG
Modest overlapping of ER stress andOsmotic stress transcriptional responses
Fold variation in expression levels of genes up-regulated by ER stress.
GenBank Gene annotation
AW100949 photoassimilate-responsive PAR-1b protein 6,35 ± 1,54 4,15 ± 0,92
AW100917 unknown 2,18 ± 0,15 3,21 ± 0,76
AW318038 lumenal binding protein cBiPe3 2,26 ± 0,17 2,50 ± 0,94
AW101796 farnesylated protein ATFP3 1,53 ± 0,11 7,38 ± 3,95
AI748042 calnexin homolog precursor 2,78 ± 0,65 1,92 ± 0,18
AI748232 60S acidic ribossomal protein P2-B 2,24 ± 0,45 2,08 ± 0,11
AW459852 putative ATAF2 protein 5,33 ± 3,76 7,58 ± 2,88
AW185793 60S ribosomal protein L12 2,89 ± 0,93 1,99 ± 0,28
AW279462 cytosolic heat shock 70 protein 2,18 ± 0,65 14,38 ± 2,51
AW186357 unknown 3,65 ± 1,66 7,98 ± 2,26
AW471814 heat shock protein 70 36,74 ± 26,25 32,76 ± 8,42
AW508046 unknown 2,38 ± 0,60 2,81 ± 1,18
AW509037 cell division cycle protein 48 (CDC48) 10,74 ± 2,10 5,98 ± 1,68
AW508884 40S ribosomal protein S16 2,27 ± 0,05 2,24 ± 0,19
AW508375 ubiquitin-associated protein 3,45 ± 1,61 3,08 ± 0,65
AW508115 unknown 3,11 ± 0,50 19,77 ± 3,22
AW568143 merozoite surface protein-related 2,16 ± 0,90 3,27 ± 0,40
AW508946 60s ribosomal protein L21 2,32 ± 0,35 2,14 ± 0,18
AW568275 unknown 3,11 ± 1,04 4,28 ± 1,08
AW567862 soybean lumenal binding protein isoform C 23,99 ± 13,19 13,64 ± 2,13
AW397007 calnexin 16,59 ± 6,18 7,22 ± 1,10
AW459732 nam-like protein 10 3,64 ± 1,74 5,41 ± 1,45
AW432916 harpin inducing protein 1-like 9 1,97 ± 0,51 4,64 ± 0,14
AI973541 unknown 4,08 ± 1,31 5,67 ± 0,69
AW278784 heat shock protein 81-2 2,05 ± 0,40 12,71 ± 3,43
AW471739 protein phpsphatase 2C (PP2C) 2,23 ± 0,45 2,13 ± 0,10
AW308879 ferrochelatase II chloroplast precursor 5,53 ± 0,69 2,70 ± 0,26
AW472364 translation initiation factor eIF-5 1,71 ± 0,11 2,30 ± 0,06
AW509424 PP2A regulatory subunit 1,80 ± 0,09 6,95 ± 0,75
AW507857 unknown 2,19 ± 0,28 2,18 ± 0,36
AW508823 unknown 2,35 ± 0,38 2,19 ± 0,10
AW507892 luminal binding protein 2 (BiP-2) 31,53 ± 13,13 20,88 ± 2,65
AW507673 60S ribosomal protein L29 2,71 ± 0,76 1,83 ± 0,07
AW507577 unknown 1,68 ± 0,14 1,59 ± 0,06
TUN mean AZC meanAW567594 glyceraldehyde 3-phosphate dehydrogenase 4,63 ± 2,28 6,44 ± 0,76
AW508203 lipoxygenase 6,18 ± 0,60 3,65 ± 1,01
AI736109 60S ribosomal protein L2 2,45 ± 0,17 2,09 ± 0,58
AI748112 60S ribosomal protein L9 2,19 ± 0,40 1,78 ± 0,21
AW509300 60S ribosomal protein L19 2,67 ± 0,35 6,45 ± 1,46
AI960794 translation elongation factor 1-gamma 2,27 ± 0,41 2,04 ± 0,20
AW471972 unknown 3,85 ± 0,77 13,00 ± 4,65
AW432994 protein disulfide isomerase 6,29 ± 1,58 2,71 ± 0,18
AW471731 unknown 2,09 ± 0,27 2,14 ± 0,12
AW509482 luminal binding protein isoform D 39,33 ± 14,28 32,06 ± 7,90
AW508776 40S ribossomal protein S18 2,81 ± 0,59 1,86 ± 0,11
AW569111 BiPD 26,23 ± 6,24 24,46 ± 6,92
AW508885 ribosomal protein L14-like protein 1,93 ± 0,33 1,63 ± 0,01
AW569128 calnexin 13,03 ± 2,53 6,10 ± 0,39
AW567808 unknown 1,94 ± 0,39 2,56 ± 0,15
AW317679 eukaryotic translation initiation factor 3(10) 2,10 ± 0,53 1,59 ± 0,05
AW570334 unknown 2,04 ± 0,12 3,21 ± 0,83
AI748065 calnexin 2,51 ± 0,40 1,89 ± 0,45
AI940871 ribosomal protein L28 1,67 ± 0,13 1,56 ± 0,14
AW186110 unknown 3,25 ± 0,78 9,63 ± 1,30
AW184865 unknown 2,46 ± 0,25 2,52 ± 0,64
AW277892 putative ABC transporter protein 1,84 ± 0,21 2,62 ± 1,12
AW472128 histone H3 1,76 ± 0,16 1,69 ± 0,21
AW472161 2 4-D inducible glutathione S-transferase 3,19 ± 0,27 2,79 ± 0,55
AW471959 unknown 3,24 ± 0,42 2,60 ± 0,24
AW508528 putative UDP-galactose transporter 4,54 ± 0,54 4,08 ± 0,29
AW508066 calnexin 23,20 ± 4,96 15,42 ± 3,93
AW568451 acidic ribosomal protein P0 2,66 ± 0,47 2,21 ± 0,18
AW507612 der1-like protein 4,49 ± 0,75 6,11 ± 2,32
AW508978 polyubiquitin (UBQ10) (SEN3) 2,05 ± 0,70 7,41 ± 2,13
AW508125 GYF domain-containing protein 1,66 ± 0,15 4,89 ± 1,84
AW508980 20S proteasome alpha subunit D 3,35 ± 0,59 1,84 ± 0,34
AW507594 chloroplast RNA binding protein 2,24 ± 0,39 6,29 ± 0,99
AW569267 protein phosphatase 2C 3,58 ± 1,49 2,98 ± 0,39
AW567827 protein disulfide isomerase 7,83 ± 4,40 5,18 ± 1,55
GenBank Gene annotation TUN mean AZC mean
Fold variation in expression levels of genes up-regulated by osmotic stress.
AW309137 hydroxyproline-rich protein 3,34 ± 1,58
AW471785 unknown 2,95 ± 1,55
AW471733 50S ribosomal protein L21 3,34 ± 0,64
AW509471 seed maturation protein PM39 2,14 ± 0,03
AW568206 seed maturation protein PM34 2,25 ± 0,09
AW568621 unknown 2,26 ± 0,65
AW507695 seed maturation protein PM34 3,82 ± 2,99
AW509480 glycine-rich protein 1,93 ± 0,20
AW568784 protein disulfide isomerase 2,53 ± 0,51
AW509036 plastid-lipid-associated protein 1,72 ± 0,23
AI759650 senescence-associated protein 1,94 ± 0,23
AI930841 proline-rich protein 4,66 ± 0,85
AW185926 unknown 2,75 ± 0,61
AW185914 lipid transfer protein 3,07 ± 1,12
AW186144 unknown 1,77 ± 0,23
AW186103 unknown 1,86 ± 0,23
AW186110 unknown 2,08 ± 0,40
AW277787 epoxide hydrolase 2,40 ± 0,69
AW186337 ferritin precursor 2,24 ± 0,90
AW279531 cellulose synthase 2,73 ± 0,66
AI959838 PP1/PP2A phosphatases pleiotropic regulator 2,21 ± 0,31
AW279500 Cys/Met metabolism protein 1,97 ± 0,88
AW164630 sucrose synthase 2,26 ± 0,16
AW433077 ATAF1 protein 3,82 ± 1,98
AW472214 RanBP1-domain protein 1,62 ± 0,21
AW278792 translation initiation factor 5A 4,76 ± 0,50
AW308920 sucrose-phosphatase 1,88 ± 0,33
AW472161 glutathione S-transferase 3,52 ± 1,48
AW279562 putatice cyclin 4,05 ± 0,20
AW279019 flavin-containing monooxygenase protein 4,18 ± 1,35
AW508125 GYF domain-containing protein 3,95 ± 0,98
AW509040 protein phosphatase 2C 3,06 ± 1,39
GenBank Gene annotation
±
PEG meanGenBank Gene annotation
AI735868 glucose and ribitol dehydrogenase 5,83 ± 2,93
AW397327 gibberellin-regulated protein 3,32 ± 1,87
AI748083 dehydrin 2,79 ± 0,72
AI748086 dehydrin 1,87 ± 0,11
AW459852 ATAF2 protein 3,08 ± 0,81
AI930875 O-Methyltransferase 4,64 ± 2,77
AW277660 PDI-like protein 2,77 ± 0,71
AW164308 unknown 2,54 ± 0,44
AW568531 unknown 2,68 ± 0,58
AW508375 ubiquitin-associated protein 2,67 ± 0,92
AW508115 unknown 1,76 ± 0,22
AW568142 seed maturation protein 4,54 ± 1,73
AW508192 unknown 3,78 ± 0,71
AW459732 nam-like protein 10 2,40 ± 0,82
AI973541 N-rich protein 2,50 ± 0,48
AW164480 SNF1 like protein kinase 4,35 ± 2,16
AW460045 cysteine proteinase inhibitor 2,73 ± 0,81
AW472364 translation initiation factor eIF-5 3,03 ± 0,82
AW568473 epoxide hydrolase 1,84 ± 0,23
AW569110 unknown 3,24 ± 0,90
AW569197 unknown 1,87 ± 0,51
AW568104 epoxide hydrolase 1,96 ± 0,32
AW507587 inositol 1 3 4-Trisphosphate 5/6 kinase 2,16 ± 0,66
AW508084 polygalacturonase-like protein 4,12 ± 0,94
AW568173 peripheral-type benzodiazepine receptor 2,20 ± 0,79
AW567877 glutathione peroxidase 3,54 ± 1,91
AW317783 beta-conglycinin alpha chain precursor 1,93 ± 0,34
AW397921 seed maturation protein PM30 14,73 ± 4,27
AI930894 unknown 2,70 ± 0,93
AW457909 NAC3 protein 4,28 ± 2,29
AI940815 seed maturation protein PM29 1,77 ± 0,11
AW185778 Ca+2-binding EF hand protein 3,84 ± 0,10
±
PEG mean
chromosome organization 1%
protein biosynthesis 19%
unknown 19%
protein folding 14%
calcium ion binding 7%
Proteolysis 6%
Transport 6%
protein phosphorylation 4%
response to pathogen 4%
transcription regulation 4%
response to antibiotic 3%
translation initiation 3%
ATPase activity 1%
cell wall organization 1% ferrochelatase activity 1%
glucose metabolism 1%
metal ion binding 1%
RNA binding 1%
translation elongation 1%
Funcional categorization of the ER-stress (A) and osmotic-stress
(B) responsive genes.
unknown 36%
oxidoreductase activity 8%
transcription regulation 6%
hydrolase activity 5%
response to water 5%
kinase activity 3%
phosphatase activity 3%
protein folding 3%
translation initiation 3%
Aging 2%
amino acid metabolism 2%
calcium ion binding 2%
carbohydrate metabolism 2%
cellulose biosynthesis 2%
iron ion binding 2%
lipid transport 2%
methyltransferase activity 2%
nucleotide binding activity 2%
peroxidase activity 2%
protease inhibition 2%
protein biosynthesis 2%
protein translocation 2%
proteolysis 2%
regulation of cell cycle 2%
response to gibberellic acid 2%
response to pathogen 2%
sucrose biosynthesis 2%
Co-regulated genes by ER stress and osmotic stress
reveal a modest overlapping of ER stress and
osmotic stress transcriptional responses
GenBank Gene annotation
AW459852 ATAF2 protein 5.33 ± 3.76 7.58 ± 2.88 2.94 ± 0.86
AW508115 unknow n 3.11 ± 0.50 19.77 ± 3.22 1.76 ± 0.22
AW459732 nam-like protein 10 3.64 ± 1.74 5.41 ± 1.45 2.26 ± 0.89
AW472364 translation initiation factor eIF-5 1.71 ± 0.11 2.32 ± 0.06 3.03 ± 0.82
AW186110 unknow n 3.25 ± 0.78 9.63 ± 1.30 2.08 ± 0.40
AW472161 2 4-D inducible glutathione S-transferase 3.19 ± 0.27 2.79 ± 0.55 3.52 ± 1.48
AW508375 ubiquitin-associated protein 3.45 ± 1.61 3.08 ± 0.65 2.20 ± 0.74
AI973541 unknow n 4.08 ± 1.31 5.67 ± 0.69 2.50 ± 0.48
AW508125 GYF domain-containing protein 1.66 ± 0.15 4.89 ± 1.84 3.95 ± 0.98
TUN mean AZC mean PEG mean
(N-rich protein)
(Dual oxidase)
-4
-2
0
2
4
6
8
10
TUN
4h
AZC4h
PEG4h
TUN
10h
AZC10
h
PEG10
h
TUN
16h
AZC16
h
PEG16
hAZC
+PEG
16h
Gene
SMP
CALN
qRT-PCR confirmed microarray results
-4
-2
0
2
4
6
8
TUN
4h
AZC4h
PEG4h
TUN
10h
AZC10
h
PEG10
h
TUN
16h
AZC16
h
PEG16
hAZC
+PEG
16h
Gene
PDI1
PDI2
PDI3
The PDI Gene Family is Differentially Regulated by
Osmotic and ER stresses
-4
-2
0
2
4
6
8
10
SMP
CALN
GST
HSP
70D
NAM
NH
II
NR
ICH
NR
ICH
2
PDI1
PDI2
PDI3
ATAF2
UBIQ
Gene
TUN16h AZC16h PEG16h AZC+PEG16h
Synergistic effect of co-regulated gene induction by thecombination of AZC and PEG treatments
-2
-1
0
1
2
3
4
5
6
7
8
9
TUN
4h
AZC4h
PEG4h
TUN
10h
AZC10
h
PEG10
h
TUN
16h
AZC16
h
PEG16
hAZC
+PEG
16h
Gene
GST
NAM
ATAF2
GST may be NAN and ATF2 dowstream target
ER StressOsmotic stress
ATF2 NAN
TATA
GSTNH1NH2
CalnexinBiP, PDICalreticulin
BiP
XUPR
AREB
DREB
ABA
?
Osmotic and stress response pathways convergeat the the level of gene activation
unknown 36%
oxidoreductase activity 18%
transcription regulation 6%
hydrolase activity 5%
response to water 5%kinase activity 3%
phosphatase activity 3%
protein folding 3%
translation initiation 3%
Aging 2%
amino acid metabolism 2%
calcium ion binding 2%
carbohydrate metabolism 2%
cellulose biosynthesis 2%
iron ion binding 2%
lipid transport 2%
methyltransferase activity 2%
nucleotide binding activity 2%
peroxidase activity 2%
protease inhibition 2%
protein biosynthesis 2%
protein translocation 2%
proteolysis 2%
regulation of cell cycle 2%
response to gibberellic acid 2%
response to pathogen 2%
sucrose biosynthesis 2%
Overexpression of the soybean ALDH7 antiquitin-like gene in tobacco transgenic lines
Incorporation of the transgene(PCR)
ALDH7 mRNA accumulation(PCR)
ALDH7 protein accumulation(PCR)
Ectopic expression of the soybean antiquitinGmTP55 gene in tobacco confers tolerance to
drought
Water-stressedplants
Irrigatedcounterpart
0 100 150 200
Salt concentration [mM NaCl]
35
50
65
80
95
110
0 100 150 200
NaCl (mM)
Germ
ination (%
) ControlTP55-S2TP55-S3* * *
*
*
*
GmTP55-overexpressing tobacco lines are more tolerant to
salt stress during germination
0
10
20
30
40
50
60
70
80
90
100
0 10 15 20
H2O2 (µM)
Germ
ination (%)
Control
TP55-S2
TP55-S3*
*
*
* *
*
Performance of GmTP55-overexpressing plants under oxidative stresses
The stress protective role of GmTP55 is associated
with an aldehyde detoxification pathway
Lipid peroxidation(accumulation of MDA)
Paraquat treatment
0
20
40
60
80
100
120
0 100 150 200
NaCl (mM)
Germ
ination (%
)
Control
ATQ8
ATQ12*
*
*
*
*
0
20
40
60
80
100
120
0 10 15 20
H2O2 (µM)
Germ
ination (%
)
Control
ATQ8
ATQ12*
*
*
*
*
*
Ectopic expression of GmTP55 in Arabidopsis confirmsthe ALDH7-mediated stress tolerance
Salt stress
Oxidative stress
1. A função de ALDH7 está associada à detoxificação de aldeídos e não à manutenção de homeostase osmótica
• ALDH7 conferiu proteção contra estresses abióticos- estresse oxidativo
como componente comum.
• Superexpressao de ALDH7 foi correlacionada com um decréscimo em
peroxidação de lipídeos -diminuição no acúmulo de MDA
2. GmALDH7 –excelente alvo para melhorar resistência a estresses do meio ambiente em culturas agronomicamente importantes
• A expressão ectópica de GmTP55 tanto em Arabidopsis quanto em tabaco
resultou em tolerância cruzada a múltiplos estresses abióticos
• As plantas transgênicas foram fenotipicamente idênticas aos controles sob
condições normais.
• Superexpressâo do gene GmTP55 nao deve afetar o desempenho global
no campo das plantas transgênicas sob condições normais.
AbioticAbiotic StressStress
SoniaSonia
AndrAndréé, , AneteAnete, , DirceDirce
Leonardo, Leonardo, RejaneRejane
Max, Max, BrenoBreno
Pedro, Elder, Pedro, Elder, JussaraJussara
Biotic StressBiotic Stress
Alessandro, Alessandro,
AnAnéésiasia, , LilianLilian, Mariana, Mariana
SilvanaSilvana, Ana Paula, , Ana Paula,
Carolina, Carolina, GuilhermeGuilherme
Collaboration: Collaboration:
Dr Maria Cristina Dr Maria Cristina BaractBaract
Dr Marcelo E. Dr Marcelo E. LoureiroLoureiro
DraDra MarliMarli L. de OliveiraL. de Oliveira
Dr Dr MuriloMurilo ZerbiniZerbini
DraDra AndreaAndrea AlmeidaAlmeida
MUITO OBRIGADA
Dr Francisco Aragão