植物科学最前線 3: 122 ( 2012)29 %1.  7 #ůł×ưÎō×ß×ßǏŏïßšūŦ{ŐÐŦßšūSzU| 2ðĭ³×ǢǥǥThe role of abscisic acid in stress response and dormancy of liverworts
Key words: abscisic acid; desiccation stress; protein phosphatase 2C.
Daisuke Takezawa
Graduate School of Science and Engineering; Institute for Environmental Science andTechnology, Saitama University
Sakura-ku, Saitama, 338-8570, Japan;:  BhPPzǁǞABAǟ+SQGZwkz²»ň%ǠĮň%+8ş9<;Įňlwrz*}#% ;ũÛĮň) $+ǠABA ǋ; #*ŉĀŗ(ŎƦ :ǠũÛ*Ş7ĹQ\xQ)ĂŲĸÜǈǆ.*ǋ('*% ;ƲòǠ\DryMP7PyC`^
R^*ÔŔĪƝħ9ǠABA ő»ĉŹƬ7Ǡ¹ã&ĄÏƺ)ǋ>;¥ÛqE_Rp*ƝěƷ@% ;ǞCutler et al. 2010ǟ
ABA +Įň)ŉĞ*²»ň%+(ǠƑƒ7ŽƒǘǠƌǘǠBfMzixIOǠýő°ň)6į¤<Ǡ22(őŏŒ?Ď#&ŤÃ<$;ǞHartung 2010ǟǠ<9*őň¼ ABA ő»ĉŹƬ7¹ãĴĲ?Ď"$ ;'+ě% ; "1 ǠMKǠPV?¾422(ǐ~ĮňǞEmbryophytaǟ*Jw|i) $ǠABA Ň7ĿƴÇQ\xQĂŲ) $Ĩû¬ě9&("$:ǠABAĂŲ)ǋ>;ǐ~ĮňƵ*qE_Rp*ÝÈŤÃ<;ƲòǠeqXvFaNKǞPhyscomitrella patensǟ7T_NKǞMarchantia polymorphaǟ*¥ÛƝħ&ƼÛŢÒċƖ*ǉŖƷ4)#<Ǡǐ~Įň)Ý<; ABA ĂŲ)ǋ>;ƼÛſ&ǠĮň*ƻĂƷ²)
;<9*û¬ě9)(;&ğü<$ ;ǞTakezawa et al. 2011ǟ
<:() 86% 

# 22(ǐ~Įň) $ ABA ǋ>;őŏŗiySQ+Öí)>;Ǡ*)+ũÛ*ĉņǠŞǠĸÜǈǆǠƈƉùĉǍâ('ǠǝűĮň)ŉĀŗ(iySQ&Ǡŷƅ*¥Ƙ{ǇǍâ7Ł{ŇƃăƷ('MKĮň?¾5ǐ~Įň)Ƶ*iySQÝÈ;Ɠǘ7Ɗǘ('*MKĮň+ǠőÁľ°)āǕ(Ĺ*¨Œ)ǋ$ǠżųģĮň&+Ŕ(;qE_Rp)8:ŐÐ)ƻĂ$ ;ĹķƯŗé( ŐÐ) $ǠżųģĮň+Ĭ9¿¸Ĺ?ĸÜ9*ƏĖ?©ÿ;&)8:Ĺ*ēØ?ǌ<&ķ/$ǠƗŘŵ?Ď(MKĮň*ĩǙŸž+ǠĹ*ēØ?ǌ&%( >:)Ǡŷƅxjw%*ǝ ƇĹƃă?Ď!ǠŇŊć) $6ŷƅ*â?Äƽ;ĴĲ?Ď#&Ɓ9<;MKĮň**8

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植物科学最前線 3: 123 ( 2012)(ăƪ+ťŗĮň*ǐ~%*ƻĂ)ǂƚ(ùƪ% "&Ɓ9<ǞOliver et al. 2005ǟ
Ǡǐ~Įň*Ʒ²ƹŨ%ĝ6§ğ)¥íJw|i% ;MKĮňǝ Ňƃă?Ď#&á*&?ĕĎ$ ;ǞÆǡǟ ŰƂ+MKĮň*Ň{Ňƃă); ABA *û¬?ě9);&)8:ǠĮň*ǐ~ƻĂ)āǕ% " ABA ĂŲ*·ÊŗĴĲ?ƝěǠ*ý*Ʒ²ƹŨ%Öĳ²żųģ
Įň* ABA ĂŲĴĲ)# $6ŏƝ?ŀ5 &Ɓ$ ;%Ǡr[wĮň&$*¥ÛƝħÍřė<## ;eqXvFaNK7T_NK?Œ ǠABA )8:÷ƫ<;ƃă*Ô²&ǠABA ĂŲ*¥ÛĴĲ)ǋ$Ɲħ?ƕ("$ ;

=:()

 %1 MKĮň* ABA +Ǡ)rbIy|^wč?Œ Ċļ)8:ƓǘǠƊǘ8-XbNK
ǘ*Ŕ(;ũ9į¤<$ ;ǞHartung et al. 1987, Werner et al. 1991ǟƅÛ)ĸÜ?Ď#Ɠ
ǘ&XbNKǘ%+Ǡ
ABA ĸÜ*ǈǆ?Ʒ;&etDUzNKǞFunaria hygrometricaǟ7^FOGXbNKǞAnthoceros punctatusǟ) $ÏÀ<$ ;ǞGarner and Paolillo 1973,Hartung et al. 1987ǟ2ǠƓǘ)# $+Ǡ·Ŵ) ABA ;őŏŒ)# $ǠķƯŗÖ*šūÏÀ ;ǞÆǢǟ
Ɠǘ*·Ŵŷƅ? ABA £ŏ;&Ǡ*ĉǇČ©<ǠŅăőĶùć% ; brood cell Ƣç<;2ǠABA +·Ŵ9Ƌƍ.*¥²?Ǎâ;
&6ÏÀ<$ ;ǞValadon and Mummery 1971, Menon and Lal 1974, Goode et al. 1993, Chopraand Kapur 1989ǟ
etDUzNK%+ǠABA £ŏ·Ŵŷƅ*Ňƃă?Ƣç;&ě9&("$:ǠŇQ\xQ ő ABA Ǆ?Ñ®;ǞWerner et al. 1991ǟ
¼etDUzNKŦ)ì;eqXvFaNK) $6Ǡ~Ɵ*8 ( ABA £ŏ)8;ùćÔ²7Ň{¢źQ\xQƃă*Ñ×ÏÀ<$ ;ǞGoode et al. 1993, Minami et al. 2003ǟ
LbpƝƣ<eqXvFaNK%+Ǡ9) ABA ĂŲƼÛ*ŖŎiygACwƝħ7ǠĂŲ)ǋ>;PJ^wÅÛ*ĴƆƝħƕ(><$ ;ǞCuming et al. 2007, Komatsu et al. 2009,

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植物科学最前線 3: 124 ( 2012)

Chater et al. 2011ǟ <)æǠƊǘ%+ǠABA )8"$÷ƫ<;őŏĂŲ)ǋ$þ9<$ ;şƛ+é( , Hellwege 8- Hartung 9*Ǜŗ(šū)8:ǠT_NKŚǞMarchatialesǟ)ì;ÙŇăƊǘ Exormotheca holstii &Ĺő*ƊǘDGNKǞRiccia fluitansǟ) $Ǡ ő
ABA ƐŪ&Ňƃă*ǋƶě9)<$ ;ǞHellwege et al. 1994, 1996ǟ
2ǠDGNK)

$+ǠABA £ŏŉŔŗ)Ƣç<; LEA ĳUzdIƪ)#$6ÏÀ<$;

ǞHellwege et al. 1996ǟ
T_NKŚÕ%6ǠgUnUNKŚ)ì;scRNKǞPallavicinialyelliiǟ)æǠABA +Ňƃă?Ƣç;&ÏÀ<$ ;ǞPence et al. 2005ǟ
}Ě%ǠT_NK)æ$+ǠABA +Ňƃă?Ƣç( &*źĨ6þ9<$ ;ǞPence et al. 2005ǟ
PryceǞ1972ǟ+ǠƊǘ) $ ABA ¤<;é( &9ǠƊǘ) $ ABA *û¬+ǎàŗ% :Ǡw`uvzǁǞLNAǟǞÆǣǟ*8 (Ɗǘ)ô¥ñ;²»ň ABAĳ*?$ ;ºƆă?ďĔǞPryce 1972ǟ
LNA +oEYGT_NKǞLunularia cruciataǟ*ŞƢç&ǋƶ$ƐŪ;ňƪ&$µǑ<ǠT_NKŅăƉ7xUQ*ƄƮĉǇǠIx
QũÛ*ŖƉ?Č©;&ÏÀ<$ ;0ǠŽƒIyxu*ƃ¢ă?Ñ×;&
ÏÀ6 ;ǞValio and Schwabe 1970ǟǠLNA  ABA &¼ĳ*ŒĴĲ)8:Įň)
Œ$ ;' )# $+ě% ;

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植物科学最前線 3: 125 ( 2012)=:,  %1 5+) -/0 ŰƂ9+ǠƊǘ ABA ĂŲ*¥ÛĴĲ?ě9);5ǠT_NK? ABA ĂŲšū*r[wŵ&$ţŭ;&?Śďáǜ?Ʒ5$ŅƌÌǙĤ) $ ABA *úǔ?Ƥ/&=ǠABA +T_NKŅăƉ*ĉǇ?Č©Ǡ¢ź7Ň)æ;ƃă*Ñ×?Ʒ;
&ě9&("ǞTougane et al. 2010, Akter et al. 2011ǟ2ǠT_NKÌǙŷƅ) $ABA +MpHũÛ* ABA ƢçăƼÛ Em *iyr|U|©ÿ) ; GUS ƼÛǞEm-GUSǟ?ŃõÝŗ)ľă²*&9ǠŰƂ9+T_NK)6ǝűĮň&Ƶ* ABA ĂŲ)āƚ(ŷƅ ÅÛÝÈ;&ƁǠƿ×ß*ĺ ǠŠîǠƲŕ×ß*×Â9*´­?þ$T_NK ABA ĂŲǋƶƼÛ*ĐŶ?Ơ3
 ŰƂ9+ǠT_NK EST ǀ¦ĄÏ9PyC`^R^ ABSCISIC ACID INSENSITIVE1 (ABI1)*lryJ?ƛ

ǠMpABI1 &½PyC`^R^ ABI1 +iyZCzlQgAU|T2CǞPP2Cǟ?M|]ǠŉŔŗ( Gly  Asp )Ô² abi1-1 ÔŔ+ ABA ǒĆ¹ăƗŎÊ?
Ť&ş9<$ ;PyC`^R^)+ ABI1 ?¾4ǦƼÛJw|i A PP2C ?M|]Ǡ<9 PP2C + ABA PJ^wƺ*Ƨ*©ÿÅÛ% ;&Ɓ9<$ ;ĝƲǠJw|i A PP2C ŷƅ

ABA ¹ã PYR/PYL/RCAR &śđŜŒǠiyZCzG^|T

SnRK2 *Ƈvzǁ²?$ ABA PJ^w?Ƨ)©ÿ$ ;&ě9&("ǞPark etal. 2009ǟ T_NK MpABI1 +PyC`^R^*Jw|i A PP2C & C ġŮ*ƞÚ]qCz) $Ŝ¼ă?Ď!ǞÆǤǟ
ǠŵŻƝħ96Jw|i A )ì;&Ɓ9< "1 ǠN ġŮ*]qCz+PyC`^R^ PP2C &*Ŝ¼ă+("ǠīŧƕPJ^w?Ď"$:ǠGFP Ɣ»UzdIƪ)8;êÈƝħáǜ96 MpABI1 *īêÈ)ä;&Ť<
 T_NKŷƅ*}ƹŗŖŎBWSC%+ǠMpABI1 *ƹ«ŖŎ ABA ĂŲŗ( Em-GUS ƼÛ*ŖŎ?øČ©2ǠMpABI1 ƼÛ?ƹ«ŖŎ;eqXvFaNKùƪƭĒ?
¤&=Ǡ*·Ŵŷƅ+ǗƎ( ABA ǒĆ¹ă?Ť(>!ǠǃőĪ) $ABA )8:Ōþ<;¢źƃă7ǝĿƴÇƃă MpABI1 ƹ«ŖŎĪ%+Ɯå<ǠABA Ƣçŗ( LEA UzdIƪ*ƐŪ60&@'ƛ9<( &ě9&("ǞTougane et al. 2010ǟ


D. Takezawa-4BSJ- Revi ew 3: 125 ( 2012)

植物科学最前線 3: 126 ( 2012) 2ǠMpABI1 ƹ«ŖŎĪ+ ABA ĂŲ %(Łǚ²Ɔ)6ĵē ;&ě9&(:ǠABA ĄÏƺŹƬĮň*ŁĂŲ)ǋ$ ;&ŤÃ<ǞBhyan et al. 2012ǟ
<9*źĨ9ǠƊǘ)6 PP2C ? ABA ĂŲ©ÿĴĲÝÈǠABA ĂŲ)ǋ>;Í
Ģŗ(¥ÛqE_Rpǐ~ĮňǊ%Ƶ% ;ºƆăŤ<>:$ !' <2%*šū%Ǡ
ĸÜ6ũÛ6Ď( ƊǘÝ< ABA ĂŲ*¥ÛĴĲ?Ď!Ǡ
ABAƇĹ7Ň('*Q\xQƃă) $ĴƆ;ǐ~Įň)ĜƸŗ(²»ň% ;&ŤÃ<Ɗǘ* ABA ĂŲ)ǋ>;ƭ¡ÅÛ7ƃăǋƶƼÛ*ŖŎ©ÿĴĲ)# $*ơŷ+Ġ ě% :ǠªƳ*}ƹŗŖŎŵ7ǠIshizaki (2008)9)8;ùƪƭĒļ)8:Ǡšū*
9(;Ŗëğü<;Ɗǘ); ABA *őŏŒǠŉ)ǠĉǇ7őĶǠŞ);û
¬)# $+Ġ ě(ńÖ ýǠT_NK* ABA ǒĆ¹ăĪ7 ABA »ĉĵēĪ?Ɲ
ħ;&%<,ǠABA *őŏßŗąƀ?ě9);&&6)ǠABA ĂŲ*·ÊŗĴĲ*ıƚ?ě9)%;&Ɓ$ ;

?:34
 Ģšū+ǠĘƾŦßŝŦßšūƩƙ¯ǅ{Ířšū(C)8-ęßƖǖËšūĮňŐÐŬŢ­ *¯ĉ)8:Ʒ59<T_NK*ÌǙ8-ƼÛƝħ)# $+ƿ×ß*ĺ Þ¶Ó&Šîö¶ÓǠƲŕ×ß*×Â±ó¶Ó)8;Ǔŗ(Om|\?þ}ƹŗŖŎŵ)8; PP2C *ĴƆƝħ+ĥƱİ×ß*ÉœĽ}¶ÓǠèĦĈĻ¶Ó*ƨŋ)8:§5$ºƆ)(")ŀĆƥ;",&*Akter, K., Tougane, K., Kaneko, M., & Takezawa, D. 2011. Effect of sugar and abscisic acid on freezing
and desiccation tolerance in the liverwort Marchantia polymorpha. Cryobiol. Cryotechnol. 57: 83-86.
Bhyan, S. B., Minami, A., Kaneko, Y., Suzuki, S., Arakawa, K., Sakata, Y., & Takezawa, D. 2012. Coldacclimation in the moss Physcomitrella patens involves abscisic acid-dependent signaling. J. Plant
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