王秀娟课题组在黄瓜连作障碍与根际微生态领域取得进展
发布时间: 2018-07-30                 浏览次数: 13

王秀娟课题组的2篇论文近期先后被《Frontiers in Microbiology》和《Plant and Soil》刊物接收,论文题目分别为《Acinetobacter calcoaceticus CSY-P13 mitigates stress of ferulic and p-hydroxybenzoic acids in cucumber by affecting antioxidant enzyme activity and soil bacterial community》(DOI: 10.3389/fmicb.2018.01262)、《Bacillus methylotrophicus CSY-F1 alleviates drought stress of cucumber under ferulic acid conditions》(DOI: 10.1007/s11104-018-3748-9)。课题组研究发现,CSY-P13菌株可通过降解阿魏酸和对羟基苯甲酸来缓解黄瓜的连作障碍;具有阿魏酸降解能力的CSY-F1菌株能缓解黄瓜的干旱胁迫(Fig. 1)。

Fig.1 Effects of CSY-F1 on leaf morphology of cucumber leaves after exposure to drought for 3 d. Control, unsupplementing with CSY-F1 and FA, and watering normally; CSY-F1, supplementing with CSY-F1, unsupplementing with FA, and watering normally; drought, unsupplementing with CSY-F1 and FA, and stopping watering for 3 d; CSY-F1+drought, supplementing with CSY-F1, unsupplementing with FA, and stopping watering for 3 d; FA, unsupplementing with CSY-F1, supplementing with FA, and watering normally; CSY-F1+FA, supplementing with CSY-F1 and FA, and watering normally; FA+drought, unsupplementing with CSY-F1, supplementing with FA, and stopping watering for 3 d; CSY-F1+FA+drought, supplementing with CSY-F1 and FA, and stopping watering for 3 d.

课题组前期发现,阿魏酸和对羟基苯甲酸等酚酸是引起黄瓜等蔬菜作物连作障碍的原因之一,因而分析了酚酸对黄瓜植株生长的影响(Acta Physiologiae Plantarum, 2015, 37:1706; 2012, 34:641-655; Scientia Horticulturae, 2014, 173:54-64; 2012, 148:235-245; Biologia Plantarum, 2013, 57:711-717; Environmental and Experimental Botany, 2012, 79:1-10; Journal of Plant Physiology, 2011, 168:927-934),进而从黄瓜根际分离了能够降解阿魏酸和对羟基苯甲酸等酚酸的菌株(Plant and Soil, 2015, 392:309-321; 2015, 389:197-210),为黄瓜等蔬菜作物连作障碍的生物修复打下了基础。

  该项工作受到山东省双一流学科的资助。