Development and Testing of the A1 Volumetric Air Sampler, an Automatic Pollen Trap Suitable for Long-Term Monitoring of eDNA Pollen Diversity

Airborne pollen surveys provide information on various aspects of biodiversity and human health monitoring. Such surveys are typically conducted using the Burkard Multi-Vial Cyclone Sampler, but have to be technically optimized for eDNA barcoding. We here developed and tested a new airborne pollen t...

Full description

Bibliographic Details
Main Authors: Gulzar Khan, Albrecht Hegge, Birgit Gemeinholzer
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/22/17/6512
_version_ 1827664999254851584
author Gulzar Khan
Albrecht Hegge
Birgit Gemeinholzer
author_facet Gulzar Khan
Albrecht Hegge
Birgit Gemeinholzer
author_sort Gulzar Khan
collection DOAJ
description Airborne pollen surveys provide information on various aspects of biodiversity and human health monitoring. Such surveys are typically conducted using the Burkard Multi-Vial Cyclone Sampler, but have to be technically optimized for eDNA barcoding. We here developed and tested a new airborne pollen trap, especially suitable for autonomous eDNA-metabarcoding analyses, called the A1 volumetric air sampler. The trap can sample pollen in 24 different tubes with flexible intervals, allowing it to operate independently in the field for a certain amount of time. We compared the efficiency of the new A1 volumetric air sampler with another automated volumetric spore trap, the Burkard Multi-Vial Cyclone Sampler, which features shorter and fewer sampling intervals to evaluate the comparability of ambient pollen concentrations. In a sterile laboratory environment, we compared trap performances between the automated volumetric air samplers by using pure dry pollen of three species—<i>Fagus sylvatica</i>, <i>Helianthus annuus</i> and <i>Zea mays</i>—which differ both by exine ornamentation and pollen size. The traps had a standard suction flow rate of 16.5 L/min, and we counted the inhaled pollen microscopically after a predefined time interval. Our results showed that though we put three different pollen types in the same container, both the traps inhaled all the pollens in a statistically significant manner irrespective of their size. We found that, on average, both traps inhaled equal an number of pollens for each species. We did not detect any cross-contamination between tubes. We concluded that the A1 volumetric air sampler has the potential to be used for longer and more flexible sampling intervals in the wild, suitable for autonomous monitoring of eDNA pollen diversity.
first_indexed 2024-03-10T01:15:28Z
format Article
id doaj.art-afc31b16347b4373a5515d22f4437acc
institution Directory Open Access Journal
issn 1424-8220
language English
last_indexed 2024-03-10T01:15:28Z
publishDate 2022-08-01
publisher MDPI AG
record_format Article
series Sensors
spelling doaj.art-afc31b16347b4373a5515d22f4437acc2023-11-23T14:09:41ZengMDPI AGSensors1424-82202022-08-012217651210.3390/s22176512Development and Testing of the A1 Volumetric Air Sampler, an Automatic Pollen Trap Suitable for Long-Term Monitoring of eDNA Pollen DiversityGulzar Khan0Albrecht Hegge1Birgit Gemeinholzer2AG Botanik, University of Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, GermanyA1 Productdesign, Reindl + Partner GmbH, Bahnhofstraße 13, 50999 Cologne, GermanyAG Botanik, University of Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, GermanyAirborne pollen surveys provide information on various aspects of biodiversity and human health monitoring. Such surveys are typically conducted using the Burkard Multi-Vial Cyclone Sampler, but have to be technically optimized for eDNA barcoding. We here developed and tested a new airborne pollen trap, especially suitable for autonomous eDNA-metabarcoding analyses, called the A1 volumetric air sampler. The trap can sample pollen in 24 different tubes with flexible intervals, allowing it to operate independently in the field for a certain amount of time. We compared the efficiency of the new A1 volumetric air sampler with another automated volumetric spore trap, the Burkard Multi-Vial Cyclone Sampler, which features shorter and fewer sampling intervals to evaluate the comparability of ambient pollen concentrations. In a sterile laboratory environment, we compared trap performances between the automated volumetric air samplers by using pure dry pollen of three species—<i>Fagus sylvatica</i>, <i>Helianthus annuus</i> and <i>Zea mays</i>—which differ both by exine ornamentation and pollen size. The traps had a standard suction flow rate of 16.5 L/min, and we counted the inhaled pollen microscopically after a predefined time interval. Our results showed that though we put three different pollen types in the same container, both the traps inhaled all the pollens in a statistically significant manner irrespective of their size. We found that, on average, both traps inhaled equal an number of pollens for each species. We did not detect any cross-contamination between tubes. We concluded that the A1 volumetric air sampler has the potential to be used for longer and more flexible sampling intervals in the wild, suitable for autonomous monitoring of eDNA pollen diversity.https://www.mdpi.com/1424-8220/22/17/6512eDNA monitoringtrap robotbiodiversity monitoringpollenpollen traps
spellingShingle Gulzar Khan
Albrecht Hegge
Birgit Gemeinholzer
Development and Testing of the A1 Volumetric Air Sampler, an Automatic Pollen Trap Suitable for Long-Term Monitoring of eDNA Pollen Diversity
Sensors
eDNA monitoring
trap robot
biodiversity monitoring
pollen
pollen traps
title Development and Testing of the A1 Volumetric Air Sampler, an Automatic Pollen Trap Suitable for Long-Term Monitoring of eDNA Pollen Diversity
title_full Development and Testing of the A1 Volumetric Air Sampler, an Automatic Pollen Trap Suitable for Long-Term Monitoring of eDNA Pollen Diversity
title_fullStr Development and Testing of the A1 Volumetric Air Sampler, an Automatic Pollen Trap Suitable for Long-Term Monitoring of eDNA Pollen Diversity
title_full_unstemmed Development and Testing of the A1 Volumetric Air Sampler, an Automatic Pollen Trap Suitable for Long-Term Monitoring of eDNA Pollen Diversity
title_short Development and Testing of the A1 Volumetric Air Sampler, an Automatic Pollen Trap Suitable for Long-Term Monitoring of eDNA Pollen Diversity
title_sort development and testing of the a1 volumetric air sampler an automatic pollen trap suitable for long term monitoring of edna pollen diversity
topic eDNA monitoring
trap robot
biodiversity monitoring
pollen
pollen traps
url https://www.mdpi.com/1424-8220/22/17/6512
work_keys_str_mv AT gulzarkhan developmentandtestingofthea1volumetricairsampleranautomaticpollentrapsuitableforlongtermmonitoringofednapollendiversity
AT albrechthegge developmentandtestingofthea1volumetricairsampleranautomaticpollentrapsuitableforlongtermmonitoringofednapollendiversity
AT birgitgemeinholzer developmentandtestingofthea1volumetricairsampleranautomaticpollentrapsuitableforlongtermmonitoringofednapollendiversity