Management of the soybean cyst nematode Heterodera glycines with combinations of different rhizobacterial strains on soybean.
Management of the soybean cyst nematode Heterodera glycines with combinations of different rhizobacterial strains on soybean.
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DOI：
10.1371/journal.pone.0182654
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发表时间：
2017
期刊：
影响因子：
3.7
通讯作者：
Chen L
中科院分区：
文献类型：
--
作者：
Zhou Y;Wang Y;Zhu X;Liu R;Xiang P;Chen J;Liu X;Duan Y;Chen L
大豆孢囊线虫（Soybean cyst nematode，SCN）是世界范围内危害最严重的大豆害虫。为了提高大豆对SCN的抗性，采用简单芽孢杆菌、B. megaterium和Sinarhizobium fredii以不同比例混合。我们发现，以3：1：1的比例（以下称为SN 101）的根际细菌菌株的种子包衣产生最高的发芽率和线虫J2的死亡率。在此基础上，于2013年和2014年在东北地区的温室和田间条件下，研究了SN 101对大豆线虫病的防治效果。结果表明，SN 101处理显著降低了大豆SCN的繁殖，促进了大豆的生长和产量，是一种很有前途的生物杀线虫剂。我们的研究结果还表明，多种根际细菌菌株的组合需要考虑在种子包衣更好地管理植物线虫。
Soybean cyst nematode (SCN) is the most damaging soybean pest worldwide. To improve soybean resistance to SCN, we employed a soybean seed-coating strategy through combination of three rhizobacterial strains, including Bacillus simple, B. megaterium and Sinarhizobium fredii at various ratios. We found seed coating by such rhizobacterial strains at a ratio of 3:1:1 (thereafter called SN101) produced the highest germination rate and the mortality of J2 of nematodes. Then, the role of soybean seed coating by SN101 in nematode control was evaluated under both greenhouse and two field conditions in Northeast China in 2013 and 2014. Our results showed that SN101 treatment greatly reduced SCN reproduction and significantly promoted plant growth and yield production in both greenhouse and field trials, suggesting that SN101 is a promising seed-coating agent that may be used as an alternative bio-nematicide for controlling SCN in soybean fields. Our findings also demonstrate that combination of multiple rhizobacterial strains needs to be considered in the seed coating for better management of plant nematodes.
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影响因子：
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