World's Best Scientists 2026 revealed!
P. Helena Mäkelä

P. Helena Mäkelä

D-Index & Metrics

Microbiology

D-Index
66
Citations
21637
World Ranking
2357
National Ranking
23

P. Helena Mäkelä publication distribution in Microbiology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Microbiology in 2026. The highlighted bar marks where P. Helena Mäkelä sits on this spectrum.

55–64 publications: 8 scientists 65–74 publications: 29 scientists 75–84 publications: 55 scientists 85–94 publications: 112 scientists 95–104 publications: 137 scientists 105–114 publications: 190 scientists 115–124 publications: 235 scientists 125–134 publications: 234 scientists 135–144 publications: 288 scientists 145–154 publications: 264 scientists 155–164 publications: 264 scientists 165–174 publications: 253 scientists 175–184 publications: 276 scientists 185–194 publications: 190 scientists 195–204 publications: 233 scientists 205–214 publications: 207 scientists 215–224 publications: 198 scientists 225–234 publications: 155 scientists 235–244 publications: 161 scientists 245–254 publications: 160 scientists 255–264 publications: 146 scientists 265–274 publications: 139 scientists 275–284 publications: 148 scientists 285–294 publications: 115 scientists 295–304 publications: 96 scientists 305–314 publications: 88 scientists 315–324 publications: 106 scientists 325–334 publications: 65 scientists 335–344 publications: 76 scientists 345–354 publications: 64 scientists 355–364 publications: 62 scientists 365–374 publications: 65 scientists 375–384 publications: 61 scientists 385–394 publications: 34 scientists 395–404 publications: 44 scientists 405–414 publications: 36 scientists 415–424 publications: 35 scientists 425–434 publications: 29 scientists 435–444 publications: 33 scientists 445–454 publications: 34 scientists 455–464 publications: 25 scientists 465–474 publications: 26 scientists 475–484 publications: 20 scientists 485–494 publications: 19 scientists 495–504 publications: 16 scientists 505–514 publications: 17 scientists 515–524 publications: 23 scientists 525–534 publications: 14 scientists 535–544 publications: 14 scientists 545–554 publications: 18 scientists 555–564 publications: 12 scientists 565–574 publications: 7 scientists 575–584 publications: 9 scientists 585–594 publications: 9 scientists 595–604 publications: 9 scientists 605–614 publications: 7 scientists 615–624 publications: 9 scientists 625–634 publications: 7 scientists 635–644 publications: 4 scientists 645–654 publications: 5 scientists 655–664 publications: 6 scientists 665–674 publications: 7 scientists 675–678 publications: 3 scientists 679+ publications: 99 scientists
55 publications 679+

This scientist: 204 publications — 50th percentile

50% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 679 publications or more.

P. Helena Mäkelä D-index placement in Microbiology in 2026

The chart shows the D-index (discipline H-index) distribution of Microbiology scientists ranked by Research.com in 2026. The highlighted bar marks where P. Helena Mäkelä sits on this spectrum.

40 D-Index: 30 scientists 41 D-Index: 86 scientists 42 D-Index: 90 scientists 43 D-Index: 117 scientists 44 D-Index: 122 scientists 45 D-Index: 123 scientists 46 D-Index: 108 scientists 47 D-Index: 110 scientists 48 D-Index: 106 scientists 49 D-Index: 109 scientists 50 D-Index: 129 scientists 51 D-Index: 111 scientists 52 D-Index: 116 scientists 53 D-Index: 127 scientists 54 D-Index: 134 scientists 55 D-Index: 134 scientists 56 D-Index: 111 scientists 57 D-Index: 136 scientists 58 D-Index: 162 scientists 59 D-Index: 151 scientists 60 D-Index: 139 scientists 61 D-Index: 122 scientists 62 D-Index: 126 scientists 63 D-Index: 144 scientists 64 D-Index: 109 scientists 65 D-Index: 103 scientists 66 D-Index: 124 scientists 67 D-Index: 112 scientists 68 D-Index: 103 scientists 69 D-Index: 131 scientists 70 D-Index: 93 scientists 71 D-Index: 93 scientists 72 D-Index: 96 scientists 73 D-Index: 92 scientists 74 D-Index: 80 scientists 75 D-Index: 66 scientists 76 D-Index: 87 scientists 77 D-Index: 60 scientists 78 D-Index: 73 scientists 79 D-Index: 59 scientists 80 D-Index: 57 scientists 81 D-Index: 55 scientists 82 D-Index: 47 scientists 83 D-Index: 77 scientists 84 D-Index: 50 scientists 85 D-Index: 45 scientists 86 D-Index: 42 scientists 87 D-Index: 41 scientists 88 D-Index: 32 scientists 89 D-Index: 38 scientists 90 D-Index: 35 scientists 91 D-Index: 34 scientists 92 D-Index: 27 scientists 93 D-Index: 26 scientists 94 D-Index: 33 scientists 95 D-Index: 22 scientists 96 D-Index: 37 scientists 97 D-Index: 22 scientists 98 D-Index: 21 scientists 99 D-Index: 22 scientists 100 D-Index: 30 scientists 101 D-Index: 16 scientists 102 D-Index: 20 scientists 103 D-Index: 17 scientists 104 D-Index: 19 scientists 105 D-Index: 16 scientists 106 D-Index: 19 scientists 107 D-Index: 18 scientists 108 D-Index: 14 scientists 109 D-Index: 10 scientists 110 D-Index: 9 scientists 111 D-Index: 7 scientists 112 D-Index: 11 scientists 113 D-Index: 6 scientists 114 D-Index: 15 scientists 115 D-Index: 10 scientists 116 D-Index: 12 scientists 117 D-Index: 7 scientists 118 D-Index: 10 scientists 119 D-Index: 10 scientists 120 D-Index: 11 scientists 121 D-Index: 2 scientists 122 D-Index: 7 scientists 123 D-Index: 12 scientists 124 D-Index: 5 scientists 125 D-Index: 9 scientists 126 D-Index: 6 scientists 127+ D-Index: 95 scientists
40 D-Index 127+

This scientist: 66 D-Index — 58th percentile

58% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 127 D-Index or more.

Research.com Recognitions

  • 2002 - Prince Mahidol Award
  • 1970 - Robert Koch Prize

Overview

P. Helena Mäkelä was affiliated with the University of Helsinki in Finland and contributed extensively to the field of Agricultural and Biological Sciences. Their research spanned multiple subfields, including Plant Science, Agronomy and Crop Science, Soil Science, Ecology, and Ecology, Evolution, Behavior and Systematics.

The scientist's work covered several focused topics, particularly:

  • Plant nutrient uptake and metabolism
  • Agronomic Practices and Intercropping Systems
  • Soil Carbon and Nitrogen Dynamics
  • Cassava research and cyanide
  • Crop Yield and Soil Fertility
  • Plant Micronutrient Interactions and Effects
  • Remote Sensing in Agriculture

Throughout their career, Mäkelä published in various academic venues. Frequent publication sources included:

  • SSRN Electronic Journal
  • Frontiers in Sustainable Food Systems
  • Agronomy
  • Industrial Crops and Products
  • Frontiers in Plant Science

Mäkelä's recent papers reflect the breadth of their research contributions. Notable papers included:

  • "Sustainable Mixed Cropping Systems for the Boreal-Nemoral Region," 2020, Frontiers in Sustainable Food Systems
  • "Apoplastic Hydrogen Peroxide in the Growth Zone of the Maize Primary Root. Increased Levels Differentially Modulate Root Elongation Under Well-Watered and Water-Stressed Conditions," 2020, Frontiers in Plant Science
  • "Seedling Growth and Phosphorus Uptake in Response to Different Phosphorus Sources," 2020, Agronomy
  • "Plant residue mulch increases measured and modelled soil moisture content in the effective root zone of maize in semi-arid Kenya," 2021, Soil and Tillage Research
  • "Red-Green-Blue and Multispectral Imaging as Potential Tools for Estimating Growth and Nutritional Performance of Cassava under Deficit Irrigation and Potassium Fertigation," 2021, Remote Sensing

The scientist collaborated frequently with several researchers throughout their career. Frequent co-authors included:

  • Daniel O. Wasonga
  • Laura Alakukku
  • Clara Lizarazo
  • Juuso Tuure
  • Matti Räsänen

Mäkelä received recognition in their field, having been awarded the Prince Mahidol Award in 2002 and the Robert Koch Prize in 1970.

Best Publications

  • Serological evidence of an association of a novel Chlamydia, TWAR, with chronic coronary heart disease and acute myocardial infarction.

    P Saikku;P Saikku;K Mattila;K Mattila;M.S Nieminen;M.S Nieminen;J.K Huttunen;J.K Huttunen

  • Efficacy of a Pneumococcal Conjugate Vaccine against Acute Otitis Media

    Eskola J;Kilpi T;Palmu A;Jokinen J

  • ANTIGENIC SIMILARITIES BETWEEN BRAIN COMPONENTS AND BACTERIA CAUSING MENINGITIS: Implications for Vaccine Development and Pathogenesis

    Jukka Finne;Maija Leinonen;P.Helena Mäkelä

  • The Protective Level of Serum Antibodies to the Capsular Polysaccharide of Haemophilus influenzae Type b

    Relena Käyhty;Heikki Peltola;Viena Karanko;P. Helena Mäkelä

  • Haemophilus influenzae Type b Capsular Polysaccharide Vaccine in Children: A Double-Blind Field Study of 100,000 Vaccinees 3 Months to 5 Years of Age in Finland

    Heikki Peltola;Helena Käythy;Aulikki Sivonen;P. Helena Mäkelä

  • Lipopolysaccharide Heterogeneity in Salmonella typhimurium Analyzed by Sodium Dodecyl Sulfate/Polyacrylamide Gel Electrophoresis

    E. Tapio Palva;P. Helena Mäkelä

  • Etiology of childhood pneumonia: serologic results of a prospective, population-based study.

    Tarja Heiskanen-Kosma;Matti Korppi;Camilla Jokinen;Seija Kurki

  • Prevention of Hemophilus influenzae type b bacteremic infections with the capsular polysaccharide vaccine.

    H Peltola;H Käyhty;M Virtanen;P H Mäkelä

  • Clinical Efficacy of Meningococcus Group A Capsular Polysaccharide Vaccine in Children Three Months to Five Years of Age

    Heikki Peltola;P. Helena Mäkelä;Helena Käyhty;Hannele Jousimies

  • Serotypes, hemolysin production, and receptor recognition of Escherichia coli strains associated with neonatal sepsis and meningitis.

    T K Korhonen;M V Valtonen;J Parkkinen;V Väisänen-Rhen

  • P-fimbriated clones among uropathogenic Escherichia coli strains.

    V Väisänen-Rhen;J Elo;E Väisänen;A Siitonen

  • Reduction of oropharyngeal carriage of Haemophilus influenzae type b (Hib) in children immunized with an Hib conjugate vaccine.

    Unknown

  • Protective efficacy of a second pneumococcal conjugate vaccine against pneumococcal acute otitis media in infants and children: randomized, controlled trial of a 7-valent pneumococcal polysaccharide-meningococcal outer membrane protein complex conjugate vaccine in 1666 children.

    Terhi Kilpi;Heidi Åhman;Jukka Jokinen;Kari S. Lankinen

  • MANNOSE-RESISTANT HAEMAGGLUTINATION AND P ANTIGEN RECOGNITION ARE CHARACTERISTIC OF ESCHERICHIA COLI CAUSING PRIMARY PYELONEPHRITIS

    Vuokko Väisänen;Vuokko Väisänen;LeifG. Tallgren;LeifG. Tallgren;P. Helena Mäkelä;P. Helena Mäkelä;Gunilla Källenius;Gunilla Källenius

  • Polysaccharide Vaccines of Group A Neisseria meningitidis and Haemophilus influenzae Type b: A Field Trial in Finland

    P. Helena Mäkelä;Heikki Peltola;Helena Käyhty;Hannele Jousimies

  • Clinical Efficacy of Pneumococcal Vaccine in the Elderly: A Randomized, Single-Blind Population-Based Trial

    Irma Koivula;Marja Stén;Maija Leinonen;Pirjo Helena Mäkelä

  • Characterization of the lipopolysaccharide from the polymyxin-resistant pmrA mutants of Salmonella typhimurium.

    M. Vaara;T. Vaara;M. Jensen;I. Helander

  • Microbial etiology of community-acquired pneumonia in the adult population of 4 municipalities in eastern Finland.

    Camilla Jokinen;Leena Heiskanen;Helvi Juvonen;Sakari Kallinen

  • Lipopolysaccharide nomenclature--past, present, and future

    Unknown

  • Cleavage of the polysialosyl units of brain glycoproteins by a bacteriophage endosialidase. Involvement of a long oligosaccharide segment in molecular interactions of polysialic acid.

    J Finne;P H Mäkelä

  • Serum antibodies after vaccination with Haemophilus influenzae type b capsular polysaccharide and responses to reimmunization: no evidence of immunologic tolerance or memory.

    Helena Käyhty;Viena Karanko;Heikki Peltola;P. Helena Mäkelä

  • The genus-specific antigen of Chlamydia: resemblance to the lipopolysaccharide of enteric bacteria

    M Nurminen;M Leinonen;P Saikku;PH Makela

  • Bacterial coinfection in children hospitalized with respiratory syncytial virus infections

    Matti Korppi;Maija Leinonen;Markku Koskela;P. Mäkelä

  • Invasiveness of serotypes and clones of Streptococcus pneumoniae among children in Finland.

    William P. Hanage;Tarja H. Kaijalainen;Ritva K. Syrjänen;Kari Auranen

Frequent Co-Authors

Heikki Peltola
Heikki Peltola University of Helsinki
Helena Käyhty
Helena Käyhty Finnish Institute for Health and Welfare (THL)
Juhani Eskola
Juhani Eskola Finnish Institute for Health and Welfare (THL)
Timo K. Korhonen
Timo K. Korhonen University of Helsinki
Maija Leinonen
Maija Leinonen Finnish Institute for Health and Welfare (THL)
Mikael Rhen
Mikael Rhen Karolinska Institute
Elja Arjas
Elja Arjas University of Helsinki
Martti Vaara
Martti Vaara University of Helsinki
Seppo Sarna
Seppo Sarna University of Helsinki
Hiroshi Nikaido
Hiroshi Nikaido University of California, Berkeley

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