Potentially toxic elements to maize in agricultural soils—microbial approach of rhizospheric and bulk soils and phytoaccumulation

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Panitlertumpai N., Nakbanpote W., Sangdee A., Boonapatcharoen N., Prasad M.N.V.

ผู้เผยแพร่: Springer

ปีที่เผยแพร่ (ค.ศ.): 2018

วารสาร: Environmental Science and Pollution Research (0944-1344)

Volume number: 25

Issue number: 24

หน้าแรก: 23954

หน้าสุดท้าย: 23972

จำนวนหน้า: 19

นอก: 0944-1344

eISSN: 1614-7499

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85048268668&doi=10.1007%2fs11356-018-2427-y&partnerID=40&md5=ba0fe094c9687716993bc2a95a55ea12

ภาษา: English-Great Britain (EN-GB)

ดูในเว็บของวิทยาศาสตร์ | ดูบนเว็บไซต์ของสำนักพิมพ์ | บทความในเว็บของวิทยาศาสตร์

บทคัดย่อ

Maize fields near Mae Tao Creek in Pha Te Village, Tak Province, Thailand are contaminated with Zn, Cd, and Pb. This research studied the interaction between levels of the metals contaminating the soil and maize development, heavy metal accumulation in the seeds, and the soil bacterial community structure. Our field experiment was carried out in five plots with metal contents that gradually decreased from a high level near the creek to a lower level further into the land: Zn 380–4883 mg kg−1, Cd 6–85 mg kg−1, and Pb 34–154 mg kg−1. Cultivation and isolation on nutrient agar (NA) was utilized to study the culturable bacterial community, and polymerase chain reaction denaturing gradient gel electrophoresis (PCR-DGGE) was utilized for the unculturable bacterial communities. All statistical analyses clearly indicated that rainfall and irrigation were the main factors affecting total Zn concentration and bioavailable Zn, Cd, and Pb in the field. The variation in the contents of the heavy metals was weakly correlated with the culturable bacterial community indices (Shannon-Wiener, evenness and richness), but the contents resulted in a difference in the overall diversity of the bacteria in the soil. The richness, numbers of culturable rhizobacteria, and maize growth stage significantly affected the amount of Zn and Cd that accumulated in the roots. In addition, maize accumulated a high level of Zn in the seeds, while the low contents of Cd and Pb in the seeds were below our limit of detection. The results obtained could be informative for the management of maize cultivation in the area. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.

คำสำคัญ

Cadmium, Diversity, maize, Rhizobacteria, zinc