JPWO2018186316A1 - ミツアリア属に属する菌株及びラルストニア属に属する菌株を併用した微生物農薬 - Google Patents
ミツアリア属に属する菌株及びラルストニア属に属する菌株を併用した微生物農薬 Download PDFInfo
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- JPWO2018186316A1 JPWO2018186316A1 JP2019511216A JP2019511216A JPWO2018186316A1 JP WO2018186316 A1 JPWO2018186316 A1 JP WO2018186316A1 JP 2019511216 A JP2019511216 A JP 2019511216A JP 2019511216 A JP2019511216 A JP 2019511216A JP WO2018186316 A1 JPWO2018186316 A1 JP WO2018186316A1
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- IQGKIPDJXCAMSM-UHFFFAOYSA-N triazoxide Chemical compound N=1C2=CC=C(Cl)C=C2[N+]([O-])=NC=1N1C=CN=C1 IQGKIPDJXCAMSM-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
(1)細菌性植物病害防除作用を有するミツアリア属に属する菌株の生菌体又は該生菌体を含む培養物、及び、細菌性植物病害防除作用を有する植物非病原性のラルストニア属に属する菌株の生菌体又は該生菌体を含む培養物を有効成分として含有することを特徴とする、細菌性植物病害防除剤。
(2)ミツアリア・キトサンニタビダ(Mitsuaria chitosanitabida)TWR114菌株(NITE BP−02445)の生菌体又は該生菌体を含む培養物、及び、ラルストニア・ピッケティ(Ralstonia pickettii)TCR112菌株(NITE BP−02446)、ラルストニア・マンニトリティカ(Ralstonia mannitolytica)TCF143菌株(NITE BP−02448)から選ばれる1以上の生菌体又は該生菌体を含む培養物を有効成分として含有することを特徴とする、(1)に記載の剤。
(3)生菌数として、ミツアリア属に属する菌株を植物非病原性のラルストニア属に属する菌株よりも多く配合することを特徴とする、(1)又は(2)に記載の剤。
(4)野菜類青枯病防除剤及び/又はかいよう病防除剤(例えば、野菜類かいよう病防除剤)である、(1)〜(3)のいずれか1つに記載の剤。
(5)ナス科植物の防除剤である、(1)〜(4)のいずれか1つに記載の剤。
(6)(1)〜(5)のいずれか1つに記載の剤を植物体及び/又は土壌(特に根圏土壌)に接触させるステップを含んでなる、細菌性植物病害防除方法。
(7)植物成長調節作用を有するミツアリア属に属する菌株の生菌体又は該生菌体を含む培養物、及び、植物成長調節作用を有する植物非病原性のラルストニア属に属する菌株の生菌体又は該生菌体を含む培養物を有効成分として含有することを特徴とする、植物生長調節剤。
(8)ミツアリア・キトサンニタビダ TWR114菌株の生菌体又は該生菌体を含む培養物、及び、ラルストニア・ピッケティ TCR112菌株、ラルストニア・マンニトリティカ TCF143菌株から選ばれる1以上の生菌体又は該生菌体を含む培養物を有効成分として含有することを特徴とする、(7)に記載の剤。
(9)野菜類種子発芽促進剤及び/又は野菜類成長促進剤である、(7)又は(8)に記載の剤。
(10)(7)〜(9)のいずれか1つに記載の剤を植物体及び/又は土壌(特に根圏土壌)に接触させるステップを含んでなる、植物成長調節方法。
(A)形態学的性質
形態:桿菌
大きさ:幅0.9〜1.9μm、長さ0.9〜3.0μm
運動性:+
(B)培養的性質
コロニーの色:ベージュ色〜薄いピンク色
ブイヨン寒天平板培養:ベージュ色〜薄いピンク色のコロニーを形成し、表面は光沢がある。
(C)生理学的性質
グラム染色性:−
硝酸塩の還元:+
インドール生成(トリプトファン):−
グルコース発酵:−
アルギニンジヒドロラーゼ:−
ウレアーゼ:−
加水分解(β−グルコシダーゼ):−
加水分解(プロテアーゼ):+
最適生育pH:中性域
最適生育温度:30〜35℃
同化(グルコース):+
同化(アラビノース):+
同化(マンノース):+
同化(マンニトール):−
同化(N−アセチル−グルコサミン):+
同化(マルトース):+
同化(グルコン酸カリウム):+
同化(カプリン酸):−
同化(アジピン酸):−
同化(リンゴ酸塩):+
同化(クエン酸三ナトリウム):−
同化(酢酸フェニル):−
(A)形態学的性質
形態:桿菌
大きさ:幅0.4〜0.7μm、長さ0.7〜2.1μm
運動性:+
(B)培養的性質
コロニーの色:ベージュ色〜薄いピンク色
ブイヨン寒天平板培養:ベージュ色〜薄いピンク色のコロニーを形成し、表面は光沢がある。
(C)生理学的性質
グラム染色性:−
硝酸塩の還元:+
インドール生成(トリプトファン):−
グルコース発酵:−
アルギニンジヒドロラーゼ:−
ウレアーゼ:−
加水分解(β−グルコシダーゼ):+
加水分解(プロテアーゼ):−
最適生育pH:中性域
最適生育温度:30〜35℃
同化(グルコース):+
同化(アラビノース):+
同化(マンノース):−
同化(マンニトール):+
同化(N−アセチル−グルコサミン):+
同化(マルトース):+
同化(グルコン酸カリウム):+
同化(カプリン酸):+
同化(アジピン酸):−
同化(リンゴ酸塩):+
同化(クエン酸三ナトリウム):+
同化(酢酸フェニル):−
(A)形態学的性質
形態:桿菌
大きさ:幅0.8〜1.1μm、長さ1.7〜2.3μm
運動性:+
(B)培養的性質
コロニーの色:ベージュ色〜薄いピンク色
ブイヨン寒天平板培養:ベージュ色〜薄いピンク色のコロニーを形成し、表面は光沢がある。
(C)生理学的性質
グラム染色性:−
硝酸塩の還元:−
インドール生成(トリプトファン):−
グルコース発酵:−
アルギニンジヒドロラーゼ:−
ウレアーゼ:−
加水分解(β−グルコシダーゼ):+
加水分解(プロテアーゼ):−
最適生育pH:中性域
最適生育温度:30〜35℃
同化(グルコース):+
同化(アラビノース):+
同化(マンノース):−
同化(マンニトール):+
同化(N−アセチル−グルコサミン):+
同化(マルトース):−
同化(グルコン酸カリウム):+
同化(カプリン酸):+
同化(アジピン酸):−
同化(リンゴ酸塩):−
同化(クエン酸三ナトリウム):+
同化(酢酸フェニル):−
なお、本発明において「防除」とは、農作物(植物)が対象とする細菌性植物病害菌に感染すること等を防止することにより、当該植物病害等を回避することを意味する。
トマト(品種:ポンテローザ)を、育苗培土を充填した直径9cmのビニールポット(底層に育苗培土150g、中層に川砂20g、上層に育苗培土150g)で4複葉期まで生育させた。そして、供試細菌株懸濁液30mlを70mlの滅菌水と混合した後、ビニールポットに底面給水によって処理し、30℃の温室で3日間保管した。その後、トマト青枯病菌懸濁液100mlを同じ底面給水処理により接種した。比較として、トマト青枯病菌懸濁液のみを底面給水処理したもの(無処理区)及びTWR114菌株単用処理、TCR112菌株単用処理も実施した。なお、供試細菌株懸濁液は、TWR114菌株、TCR112菌株をそれぞれNB培地(肉エキス0.5%、ペプトン1.5%、塩化ナトリウム0.5%、リン酸一水素カリウム0.5%、pH7.0)で27℃、120rpm、48時間振盪培養後に遠心集菌(5000×g、15分)し、これを滅菌水で懸濁した操作を2回したものを使用し、いずれも600nm吸光度(OD600)が1.0(3×109cfu/ml)となるように調製した。そして、TWR114菌株とTCR112菌株を併用した処理区については、TWR114菌株懸濁液とTCR112菌株懸濁液の混合比が20ml:10ml、15ml:15ml、10ml:20mlの3種類を実施した。また、トマト青枯病菌懸濁液は、CPG培地で24時間振とう培養後に遠心集菌したものをMgCl2(10mM)で希釈し、600nm吸光度(OD600)が1(約1×109cfu/ml)となるように調製して使用した。
トマト(品種:ポンテローザ)を、園芸培土を充填したポット(9cm×9cm)で4複葉期まで生育させた。そして、供試細菌株懸濁液30mlを灌注処理し、30℃の温室で4日間保管した。その後、トマト青枯病菌懸濁液50mlを同じ灌注処理により接種した。比較として、トマト青枯病菌懸濁液のみを灌注処理したもの(無処理区)及び非特許文献1に記載のアシネトバクター(Acinetobacter)GEBT349菌株懸濁液10mlを茎葉散布処理したもの(対照区)も実施した。なお、供試細菌株懸濁液は、TWR114菌株、TCR112菌株、TCF143菌株、及びGEBT349菌株懸濁液をそれぞれNB培地(肉エキス0.5%、ペプトン1.5%、塩化ナトリウム0.5%、リン酸一水素カリウム0.5%、pH7.0)で27℃、120rpm、48時間振盪培養後に遠心集菌(5000×g、15分)し、これを滅菌水で懸濁した操作を2回したものを使用し、いずれも600nm吸光度(OD600)が1.0(3×109cfu/ml)となるように調製した。そして、TWR114菌株とTCF143菌株を併用した処理区については、TWR114菌株懸濁液とTCF143菌株懸濁液の混合比を20ml:10mlで実施した。また、トマト青枯病菌懸濁液は、YP培地で24時間振とう培養後に遠心集菌したものを蒸留水で100倍に希釈して使用した。
0:発病なし
1:一部の小葉が萎凋
2:半数未満の複葉が萎凋
3:半数以上の複葉が萎凋
4:枯死
<発病度及び防除価>
発病度=Σ(発病指数×該当株数)/(調査株数×4)×100
防除価=100−(処理区の発病度/無処理区の発病度)×100
直径60mmのシャーレ4枚にそれぞれ濾紙を敷き、各60粒のトマト種子(品種:ポンテローザ)を濾紙上に播種した。更に、供試細菌懸濁液又は水道水を2ml添加し、夜間20℃、日中25℃の恒温器内に静置した。なお、供試細菌懸濁液は、TWR114菌株あるいはTCR112菌株をNB培地で27℃、120rpm、6日間振盪培養後に遠心集菌(5000×g、15分)し、これを滅菌水で懸濁した操作を2回したものを使用し、600nm吸光度(OD600)が1.0となるように調製した。これら懸濁液について、それぞれの単用処理及びこれらを1:1で混合したものでの処理を実施した。
直径9cmのビニールポットに滅菌土壌(育苗培土:川砂:バーミキュライト=1:1:1)を充填し、ここでトマト(品種:ポンテローザ)を4複葉期まで生育させた。そして、供試細菌懸濁液30mlを滅菌水70mlと混合した後ビニールポットに底面給水により処理し、30℃の温室で28日間保管した。その間、適宜底面給水を行った。なお、処理区として、TWR114菌株、TCR112菌株をそれぞれ単用処理する区と両菌株を併用して処理する区を設け、併用処理区ではTWR114菌株懸濁液20mlとTCR112菌株懸濁液10mlの混合液を滅菌水と混合した後にビニールポットへ処理した。比較として、底面給水処理のみしたもの(無処理区)も実施した。なお、TWR114菌株懸濁液及びTCR112菌株懸濁液は、実施例1と同様の方法により調製した。
トマト(品種:桃太郎エイト)を、実施例1と同様に育苗培土を充填した直径9cmのビニールポットで4複葉期まで生育させた。そして、トマトかいよう病菌懸濁液をハサミに霧吹きで1回噴霧後、供試細菌株懸濁液をハサミの両面に各1回噴霧した。その後ハサミでトマト第1本葉を葉柄の付け根から切除し、28℃のガラス温室で1ヵ月栽培した。比較として、トマトかいよう病菌懸濁液のみをハサミに噴霧して切除処理したもの(無処理区)も実施した。なお、TWR114菌株懸濁液及びTCR112菌株懸濁液は、実施例1と同様の方法で調製し、また、トマトかいよう病菌懸濁液は、PSB培地で4日間振とう培養後に遠心集菌したものを滅菌水に懸濁し、約6×108cfu/mlに調製して使用した。
0:無病徴
1:複葉の一部に壊死・萎凋症状あり
2:複葉の大部分が壊死・萎凋
<発病度及び防除価>
発病度(%)={Σ(発病指数×複葉数)/全複葉数×2}×100
防除価={1−(処理区の発病度/無処理区の発病度)}×100
バレイショ(品種:デジマ)を、園芸培土を充填した直径9cmのビニールポットで4複葉期まで生育させた。そして、供試細菌株懸濁液30mlをビニールポットに灌注処理し、30℃の温室で4日間保管した。その後、バレイショ青枯病菌懸濁液50mlを同じ灌注処理により接種した。比較として、バレイショ青枯病菌懸濁液のみを灌注処理したもの(無処理区)及びアシネトバクター GEBT349菌株懸濁液10mlを茎葉散布処理したもの(対照区)も実施した。なお、供試細菌株懸濁液は、TWR114菌株、TCR112菌株をそれぞれNB培地(肉エキス0.5%、ペプトン1.5%、塩化ナトリウム0.5%、リン酸一水素カリウム0.5%、pH7.0)で30℃、120rpm、24時間振盪培養後に遠心集菌(5000×g、10分)し、これを滅菌水で懸濁した操作を2回したものを使用し、いずれも600nm吸光度(OD600)が1.0(3×109cfu/ml)となるように調製した。また、バレイショ青枯病菌懸濁液は、YP培地で24時間振とう培養したものを蒸留水で100倍に希釈して使用した。
0:発病なし
1:一部の小葉が萎凋
2:半数未満の複葉が萎凋
3:半数以上の複葉が萎凋
4:枯死
<発病度及び防除価>
発病度=Σ(発病指数×該当株数)/(調査株数×4)×100
防除価=100−(処理区の発病度/無処理区の発病度)×100
直径60mmのシャーレ3枚にそれぞれ濾紙を敷き、水道水を1ml添加した後、各30粒のキャベツ種子(品種:四季獲)を濾紙上に播種した。更に、TWR114菌株懸濁液、TCR112菌株懸濁液、又は水道水を1ml添加し、夜間20℃、日中25℃の恒温器内に静置した。なお、TWR114菌株懸濁液及びTCR112菌株懸濁液は、NB培地で27℃、120rpm、6日間振盪培養後に遠心集菌(10000rpm、10分)し、これを滅菌水で懸濁した操作を2回したものを使用し、600nm吸光度(OD600)がそれぞれ0.32、0.31となるように調製した。
(1)ミツアリア・キトサンニタビダ(Mitsuaria chitosanitabida)TWR114菌株(NITE BP−02445)。
(2)ラルストニア・ピッケティ(Ralstonia pickettii)TCR112菌株(NITE BP−02446)。
(3)ラルストニア・マンニトリティカ(Ralstonia mannitolytica)TCF143菌株(NITE BP−02448)。
Claims (10)
- 細菌性植物病害防除作用を有するミツアリア(Mitsuaria)属に属する菌株の生菌体又は該生菌体を含む培養物、及び、細菌性植物病害防除作用を有する植物非病原性のラルストニア(Ralstonia)属に属する菌株の生菌体又は該生菌体を含む培養物を有効成分として含有することを特徴とする、細菌性植物病害防除剤。
- ミツアリア・キトサンニタビダ(Mitsuaria chitosanitabida)TWR114菌株(NITE BP−02445)の生菌体又は該生菌体を含む培養物、及び、ラルストニア・ピッケティ(Ralstonia pickettii)TCR112菌株(NITE BP−02446)、ラルストニア・マンニトリティカ(Ralstonia mannitolytica)TCF143菌株(NITE BP−02448)から選ばれる1以上の生菌体又は該生菌体を含む培養物を有効成分として含有することを特徴とする、請求項1に記載の剤。
- 生菌数として、ミツアリア(Mitsuaria)属に属する菌株を植物非病原性のラルストニア(Ralstonia)属に属する菌株よりも多く配合することを特徴とする、請求項1又は2に記載の剤。
- 野菜類青枯病防除剤及び/又はかいよう病防除剤である、請求項1〜3のいずれか1項に記載の剤。
- ナス科植物の防除剤である、請求項1〜4のいずれか1項に記載の剤。
- 請求項1〜5のいずれか1項に記載の剤を植物体及び/又は土壌に接触させるステップを含んでなる、細菌性植物病害防除方法。
- 植物成長調節作用を有するミツアリア(Mitsuaria)属に属する菌株の生菌体又は該生菌体を含む培養物、及び、植物成長調節作用を有する植物非病原性のラルストニア(Ralstonia)属に属する菌株の生菌体又は該生菌体を含む培養物を有効成分として含有することを特徴とする、植物生長調節剤。
- ミツアリア・キトサンニタビダ(Mitsuaria chitosanitabida)TWR114菌株(NITE BP−02445)の生菌体又は該生菌体を含む培養物、及び、ラルストニア・ピッケティ(Ralstonia pickettii)TCR112菌株(NITE BP−02446)、ラルストニア・マンニトリティカ(Ralstonia mannitolytica)TCF143菌株(NITE BP−02448)から選ばれる1以上の生菌体又は該生菌体を含む培養物を有効成分として含有することを特徴とする、請求項7に記載の剤。
- 野菜類種子発芽促進剤及び/又は野菜類成長促進剤である、請求項7又は8に記載の剤。
- 請求項7〜9のいずれか1項に記載の剤を植物体及び/又は土壌に接触させるステップを含んでなる、植物成長調節方法。
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