Biodiversity and Microorganisms Variation of Endemic Duku (Lancium domesticum Corr.) Rhizosphere in the Wet and Dry Main Growing Site in Jambi, Indonesia

IF 1.2 Q3 MULTIDISCIPLINARY SCIENCES
Islah Hayati, Husda Marwan, Weni Wilia
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Abstract

Duku are endemic plants of Jambi Province, Indonesia. They inhabit and used to grow well in alluvial along riverbanks, but lately have experienced sudden death disease outbreaks for the last decades. This situation has been prevalent since the frequent flooding due to the depletion of forest areas upstream. Since it is caused by water mold Phytophthora palmivora, it was supposed that sudden death disease should only occur in wet areas, but factually, the disease is also found in dry areas. This inspired us to investigate other soil biology factors of its rhizosphere in wet and dry habitats. Samples came from the rhizosphere of diseased and healthy duku in several alluvial areas of the Batang Hari River representing wet and dry habitats. This study found that the soil microbial community in dry and wet habitats was inhabited by mycorrhizal communities, bacteria, and fungi. The relative abundance of microbes in dry and wet habitats in healthy and diseased plants showed varied species. In the wet habitat-healthy plants, the relative abundance of Sclerocytis was 33.33%, Gigaspora 33.34%, and Glomus 33.33%. In the wet habitat-diseased plants, the relative abundance of mycorrhizae was Sclerocytis 66.67%, Glomus 33.33%, and no Gigaspora. The bacteria group was found to be the largest at 70,49% in dry habitats and 72.13% in wet habitats. The fungal group was 14,08% in dry and 16.39% in wet habitats. Mycorrhiza showed the smallest percentage in the rhizosphere of duku plants. We found that VAM correlated negatively with N, and P in the rhizosphere, and Glomus sp. existence correlated positively with soil K.
印尼占壁干湿主生地特有杜姑根际生物多样性及微生物变异
杜鹃是印度尼西亚占碑省的特有植物。它们在河岸的冲积物中生长得很好,但最近几十年来,它们经历了突然死亡疾病的爆发。由于上游森林地区的枯竭,这种情况一直很普遍。由于是由棕榈疫霉(Phytophthora palmivora)水霉菌引起的,所以人们认为猝死病只发生在潮湿地区,但事实上,在干燥地区也发现了这种疾病。这启发了我们在干湿生境下研究其根际的其他土壤生物学因子。样本来自巴塘哈里河几个冲积区患病和健康杜库的根际,代表了潮湿和干燥的栖息地。本研究发现,干湿生境土壤微生物群落以菌根群落、细菌和真菌为主。健康植物和患病植物干、湿生境微生物相对丰度呈现不同种类。湿生境健康植物中,Sclerocytis相对丰度为33.33%,Gigaspora相对丰度为33.34%,Glomus相对丰度为33.33%。湿生境病株菌根相对丰度为:scleroocytis 66.67%, Glomus 33.33%, Gigaspora无。在干燥生境和潮湿生境中,细菌群最大,分别为70.49%和72.13%。干燥生境真菌群占14.08%,潮湿生境真菌群占16.39%。菌根在杜鹃植物根际中所占比例最小。结果表明,VAM与根际N、P呈负相关,Glomus sp.的存在与土壤K呈正相关。
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来源期刊
Baghdad Science Journal
Baghdad Science Journal MULTIDISCIPLINARY SCIENCES-
CiteScore
2.00
自引率
50.00%
发文量
102
审稿时长
24 weeks
期刊介绍: The journal publishes academic and applied papers dealing with recent topics and scientific concepts. Papers considered for publication in biology, chemistry, computer sciences, physics, and mathematics. Accepted papers will be freely downloaded by professors, researchers, instructors, students, and interested workers. ( Open Access) Published Papers are registered and indexed in the universal libraries.
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