Influence of Soil Types on Diversity of Fungal Communities in Aged Apple Orchards in Southwestern China

doi:10.11924/j.issn.1000-6850.casb2024-0394

Abstract

Abstract:

As an indispensable microbial group in soil, fungi play a crucial role in apple growth and disease prevention. To compare the effects of soil types on the diversity of fungal communities in aged apple orchards in southwestern China, the experiment was conducted with four soil types: brown soil (BS), sandy soil (SS), yellow soil (YS) and apple replant disease soil (ARDS). The results showed that although there was no difference in α-diversity among the four soil types, SS had the lowest Sobs and Ace, while ARDS had the highest Sobs. ARDS, BS, SS and YS had 326, 301, 265 and 303 Operational Taxonomic Units (OTUs) respectively, and the four soil types shared 178 OTUs. The OTUs by oneself was between 23 and 47 (ARDS>BS>YS>SS). Among the four soil types, Solicoccozyma, Mortierella, Rhodotorula and Vishniacozyma were the top four fungi with the highest relative abundance. At the genus level, the four soil types had significant effects on the relative abundance of 15 fungi, including Bionectria, Cladosporium, Mycoarthris, Cylindrocarpon and Clonostachys (P<0.05). The ARDS soil type had a higher number of species and a relatively high abundance of species indicating replant disease. Although pathogenic fungi were present in all soil types, their relative abundance was relatively low.

Key words: soil type, fungi, community diversity, southwestern China

XU Liuxing, CAI Rongjing, TANG Xin, ZHANG Dan, WU Dong, GONG Zhanbin, YANG Yanqun, QUAN Yong, HUANG Guoyan. Influence of Soil Types on Diversity of Fungal Communities in Aged Apple Orchards in Southwestern China[J]. Chinese Agricultural Science Bulletin, 2024, 40(32): 85-90.

Figures/Tables 8

References 17

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时间	农艺管理
1月	施底肥
4月	施肥（包括叶面肥）、喷施农药
5月	喷施农药
6月	除草、喷施农药
7月	施肥（包括叶面肥）、喷施农药
8月	除草、喷施农药
9月	喷施农药
10月	施肥

时间	农艺管理
1月	施底肥
4月	施肥（包括叶面肥）、喷施农药
5月	喷施农药
6月	除草、喷施农药
7月	施肥（包括叶面肥）、喷施农药
8月	除草、喷施农药
9月	喷施农药
10月	施肥

处理	Sobs	Shannon	Simpson	Ace	Coverage
ARDS	162	3.20	0.094	165	1.000
BS	166	2.81	0.141	173	1.000
SS	138	3.18	0.078	141	1.000
YS	173	2.87	0.147	182	1.000
SEM	6.52	0.07	0.01	7.02	0.00
F	1.48	2.31	1.81	1.74	2.83
P	0.258	0.116	0.186	0.199	0.072

处理	Sobs	Shannon	Simpson	Ace	Coverage
ARDS	162	3.20	0.094	165	1.000
BS	166	2.81	0.141	173	1.000
SS	138	3.18	0.078	141	1.000
YS	173	2.87	0.147	182	1.000
SEM	6.52	0.07	0.01	7.02	0.00
F	1.48	2.31	1.81	1.74	2.83
P	0.258	0.116	0.186	0.199	0.072