scholarly journals The Effect of Distance from River on Soil Physiochemical Properties, Root Colonization and Spore density of Arbuscular Mycorrhizal Fungi Associated with Salt Cedar

2017 ◽  
Vol 20 (78) ◽  
pp. 67-76
Author(s):  
S. Moradi Behbahani ◽  
M. Moradi ◽  
R. Basiri ◽  
J. Mirzaei ◽  
◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Root Colonization ◽  
Arbuscular Mycorrhizal ◽  
Spore Density ◽  
Physiochemical Properties ◽  
Salt Cedar ◽  
Soil Physiochemical Properties

scholarly journals Spore density and root colonization by arbuscular mycorrhizal fungi in preserved or disturbed Araucaria angustifolia (Bert.) O. Ktze. ecosystems

2006 ◽  
Vol 63 (4) ◽  
pp. 380-385 ◽  
Author(s):  
Milene Moreira ◽  
Dilmar Baretta ◽  
Siu Mui Tsai ◽  
Elke Jurandy Bran Nogueira Cardoso
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Root Colonization ◽  
Extinction Risk ◽  
Arbuscular Mycorrhizal ◽  
The Other ◽  
Spore Density ◽  
Native Forest ◽  
Araucaria Angustifolia ◽  
Araucaria Forest

Araucaria angustifolia (Bert.) O. Ktze., a native forest tree from Brazil, is under extinction risk. This tree depends on arbuscular mycorrhizal fungi for growth and development, especially in tropical low-P soils but, despite being a conifer, Araucaria does not form ectomycorrhiza, but only the arbuscular endomycorrhiza. This study aimed at surveying data on the spore density and root colonization (CR) by arbuscular mycorrhizal fungi (AMF) in Araucaria angustifolia forest ecosystems, in order to discriminate natural, implemented, and anthropic action-impacted ecosystems, by means of Canonical Discriminant Analysis (CDA). Three ecosystems representative of the Campos do Jordão (SP, Brazil) region were selected: 1. a native forest (FN); 2. a replanted Araucaria forest (R); and 3. a replanted Araucaria forest, submitted to accidental fire (RF). Rhizosphere soil and roots were sampled in May and October, 2002, for root colonization, AMF identification, and spores counts. Root percent colonization rates at first collection date were relatively low and did not differ amongst ecosystems. At the second period, FN presented higher colonization than the other two areas, with much higher figures than during the first period, for all areas. Spore density was lower in FN than in the other areas. A total of 26 AMF species were identified. The percent root colonization and spore numbers were inversely related to each other in all ecosystems. CDA indicated that there is spatial distinction among the three ecosystems in regard to the evaluated parameters.

scholarly journals Eksplorasi Fungi Mikoriza Arbuskula pada Perkebunan Kelapa Sawit PT. Lembah Bhakti di Rawa Singkil dengan Kultur Trapping

2020 ◽  
Vol 2 (3) ◽  
pp. 38-48
Author(s):  
Safran Safran ◽  
Ashabul Anhar ◽  
Fikrinda Fikrinda
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Palm Oil ◽  
Oil Palm ◽  
Mycorrhizal Fungi ◽  
Root Colonization ◽  
Arbuscular Mycorrhizal ◽  
Spore Density ◽  
Oil Palm Plantation

Abstrak. Penelitian ini dilakukan untuk mengeksplorasi fungi mikoriza arbuskula (FMA) pada perkebunan kelapa sawit PT Lembah Bhakti dengan kultur trapping. Populasi spora dan kolonisasi FMA pada akar kelapa sawit di amati pada kelapa sawit  umur 5 tahun, 10 tahun, dan 15 tahun dengan tiga media pembawa (zeolit, pasir dan biochar). Terdapat dua genus yang ditemukan pada rizosfir kelapa sawit yaitu Glomus dan Acaulospora. Glomus merupakan genus yang  dominan dan Glomus sp1 merupakan spesies yang lebih banyak. Hasil penelitian menunjukkan kepadatan spora tertinggi didapatkan pada rizosfer kelapa sawit umur 5 tahun ( 65 spora per 50g tanah) sedangkan kolonisasi akar tertinggi didapatkan pada umur 10 tahun (39,6 %). Zeolit merupakan media pembawa terbaik dalam kultur trapping yang ditunjukkan oleh lebih tingginya kepadatan spora maupun kolonisasi akar. bstract. This research was conducted to explore the arbuscular mycorrhizal fungi (AMF) at oil palm plantation of PT Lembah Bhakti with trapping culture. AMF Spore populations at colonization at the root of palm oil were observed in oil palm aged were observation at 5 years, 10 years, and 15 years with three carrier media (zeolite, sand and biochar).  There are two genera found Glomus and Acaulospora. Glomus was the dominant genus and Glomus sp1 was a larger species. The results showed that the highest spore density was found in the 5-year-old palm oil rizosphere (65 spores per 50g of land) while the highest root colonization was obtained at age 10 (39.6%). Zeolite was the best carrier in trapping culture which is shown by higher spore density and root colonization.  

scholarly journals Response of Arbuscular Mycorrhizal Fungi to Simulated Climate Changes by Reciprocal Translocation in Tibetan Plateau

2015 ◽  
Vol 43 (2) ◽  
pp. 488-493
Author(s):  
Zhaoyong SHI ◽  
Xubin YIN ◽  
Bede MICKAN ◽  
Fayuan WANG ◽  
Ying ZHANG ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Arbuscular Mycorrhizal Fungi ◽  
Reciprocal Translocation ◽  
Mycorrhizal Fungi ◽  
Climate Changes ◽  
Arbuscular Mycorrhizal ◽  
Am Fungi ◽  
Spore Density ◽  
The Tibetan Plateau ◽  
Colonization Frequency

Arbuscular mycorrhiza (AM) fungi are considered as an important factor in predicting plants and ecosystem responses to climate changes on a global scale. The Tibetan Plateau is the highest region on Earth with abundant natural resources and one of the most sensitive region to climate changes. To evaluate the complex response of arbuscular mycorrhizal fungi colonization and spore density to climate changes, a reciprocal translocation experiment was employed in Tibetan Plateau. The reciprocal translocation of quadrats to AM colonization and spore density were dynamic. Mycorrhizal colonization frequency presented contrary changed trend with elevations of quadrat translocation. Colonization frequency reduced or increased in majority quadrats translocated from low to high or from high to low elevation. Responses of colonization intensity to translocation of quadrats were more sensitive than colonization frequency. Arbuscular colonization showed inconsistent trend in increased or decreased quadrat. Vesicle colonization decreased with changed of quadrat from low to high elevations. However, no significant trend was observed. Although spore density was dynamic with signs of decreasing or increasing in translocated quadrats, the majority enhanced and declined respectively in descent and ascent quadrat treatments. It is crucial to understand the interactions between AM fungi and prairie grasses to accurately predict effects of climate change on these diverse and sensitive ecosystems. This study provided an opportunity for understanding the effect of climate changes on AM fungi.

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