Kabir Md Golam, Wang Yonglong, Abuhena Md, Azim Md Faisal, Al-Rashid Jubair, Rasul Noorain Munim, Mandal Dipa, Maitra Pulak
Department of Research and Development, Apex Biofertilizers and Biopesticides Limited, Gaibandha, Bangladesh.
Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China.
Front Microbiol. 2023 Jan 16;13:1071392. doi: 10.3389/fmicb.2022.1071392. eCollection 2022.
The presence of the exotic tree in crop-growing soil and the accumulation of its undecomposed leaves is a significant ecological hazard. The waxy coating on the leaves and the phenolic compounds takes a long time to break down under normal conditions. It is necessary to explore various fungi that can degrade these leaves for an eco-friendly solution to this problem. In this study, spores of nine native strains were produced on wheat agar using a lactic acid-induced sporulation strategy (LAISS). biosustained spores and (SI) spores were applied to a rice field with accumulated leaves under continuous ponding (CP) and alternate flooding and wetting conditions (AFW). Among the strains, TI04 () and TI15 () showed faster (5 days) and massive sporulation (1.06-1.38 × 10 CFU/g) in LAISS. , TI04 and TI15 biosustained on leaves and improved rice seedling growth and SI infection under greenhouse conditions. In the rice-field experiment, -treatment had a threefold yield (percentage) increase from control, with TI04 (CP) increasing the yield by 30.79, TI04 (AFW) by 29.45, TI15 (CP) by 32.72, and TI15 (AFW) rising by 31.91. Remarkably, unfilled grain yield significantly decreased in all treatments. Under AFW conditions, TI04 and TI15 showed a higher pH increase. Furthermore, TI04 and TI15 under AFW had higher water productivity (t ha cm) of 0.0763 and 0.0791, respectively, and the highest rates (percentage) of SI colonization of 86.36 and 83.16, respectively. According to the findings, LAISS-produced spores can be applied to break down persistent wastes and restore agricultural ecosystems through increased mycorrhizae networking.
外来树种出现在农作物种植土壤中且其未分解的树叶不断堆积,这是一个重大的生态危害。树叶上的蜡质涂层和酚类化合物在正常条件下需要很长时间才能分解。有必要探索各种能够降解这些树叶的真菌,以找到解决这个问题的环保方案。在本研究中,采用乳酸诱导产孢策略(LAISS)在小麦琼脂上产生了9种本地菌株的孢子。将生物维持孢子和(SI)孢子应用于持续淹水(CP)以及交替淹水和湿润条件(AFW)下有堆积树叶的稻田。在这些菌株中,TI04()和TI15()在LAISS中表现出更快(5天)且大量产孢(1.06 - 1.38×10 CFU/g)。此外,TI04和TI15在温室条件下能在树叶上生物维持生长,并改善水稻幼苗生长和SI感染情况。在稻田试验中,-处理使产量(百分比)比对照增加了三倍,TI04(CP)使产量增加30.79,TI04(AFW)增加29.45,TI15(CP)增加32.72,TI15(AFW)增加31.91。值得注意的是,所有处理中瘪粒产量均显著下降。在AFW条件下,TI04和TI15使pH升高幅度更大。此外,AFW条件下的TI04和TI15分别具有更高的水分生产率(t ha cm),分别为0.0763和0.0791,以及最高的SI定殖率(百分比),分别为86.36和83.16。根据研究结果,LAISS产生的孢子可用于分解持久性废物,并通过增加菌根网络来恢复农业生态系统。