Diaporthe helianthi

Munt.-Cvetk., Mihaljč. & M.Petrov · species

image placeholder — illustration coming later

Fungi/Ascomycota/Sordariomycetes/Diaporthales/Diaporthaceae/Diaporthe

At a glance

Occurrence records19

Data sources10

Biological traits0

DNA specimens50

eDNA detections52

Sources10 archives

Databases and archives Diaporthe helianthi's data was compiled from.

WikipediaWikimedia Foundation2 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility19 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI52 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics50 specimens↗

LOTUSNatural Products (Wikidata)compounds↗

NPASSNat. Product Activity & Species Sourcecompounds↗

GoaTGenomes on a Tree · Sangergenome & karyotype↗

NCBIUS National Library of Medicinegenome & karyotype↗

GLoBIGlobal Biotic Interactionsbiotic interactions↗

On this page6 sections

Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.

NarrativeWikipediaarticle

Chemical compositionLOTUS · NPASS81 compounds

Occurrence & distributionGBIF19 records

Environmental DNA3 datasets · 6 countries52 detections

DNA & barcodingBOLD50 specimens

Genome at a glanceGoaT · NCBI≈64 Mbp

01Narrative

Diaporthe helianthi is a fungal pathogen that causes Phomopsis stem canker of sunflowers. In sunflowers, Phomopsis helianthi (teleomorph =Diaporthe helianthi) is the causative agent behind stem canker. Its primary symptom is the production of large canker lesions on the stems of sunflower plants. These lesions can eventually lead to lodging and plant death. This disease has been shown to be particularly devastating in southern and eastern regions of Europe, although it can also be found in the United States and Australia. While cultural control practices are the primary method of controlling for Stem Canker, there have been a few resistant cultivars developed in regions of Europe where the disease is most severe. Leaf lesion proceeding along major leaf vein (Photo: Dr Tom Gulya, USDA)

No narrative description available for this taxon yet.

02Traits & measurements

No structured trait data for this taxon yet.

03Chemical composition81 compounds

Compounds documented for Diaporthe helianthi across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").

Compound class profile5 classes

Oleanane triterpenoids42

Flavonols6

Cinnamic acids and derivatives1

Fusidane triterpenoids1

Simple coumarins1

Documented compounds81 total

Tissue Source Quantified only

Compound	Amount	Source
(1S,2R,5R,7R,10S,11R,18S,19S,22S)-7,18-dihydroxy-1,2,6,6,10,17,17-heptamethyl-20-oxahexacyclo[12.10.0.02,11.05,10.015,22.019,22]tetracosa-12,14-dien-21-one	present	NPASS
(2S,3S,4R,5R,6R)-6-[[(3S,4aR,6aR,6bS,8aS,12aS,14aR,14bR)-8a-[(2S,3R,4S,5S,6R)-6-[[(2R,3R,4R,5S,6R)-3,4-dihydroxy-6-(hydroxymethyl)-5-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-2-yl]oxymethyl]-3,4,5-trihydroxyoxan-2-yl]oxycarbonyl-4,4,6a,6b,11,11,14b-heptamethyl-1,2,3,4a,5,6,7,8,9,10,12,12a,14,14a-tetradecahydropicen-3-yl]oxy]-3-[(2S,3R,4R,5S)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-4,5-dihydroxyoxane-2-carboxylic acid	present	NPASS
(2S,3S,4S,5R,6R)-6-[[(3S,4aR,6aR,6bS,8aS,12aS,14aR,14bR)-4,4,6a,6b,11,11,14b-heptamethyl-8a-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxycarbonyl-1,2,3,4a,5,6,7,8,9,10,12,12a,14,14a-tetradecahydropicen-3-yl]oxy]-3-[(2S,3R,4R,5S)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-4-hydroxy-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxane-2-carboxylic acid	present	NPASS
(2S,3S,4S,5R,6R)-6-[[(3S,4aR,6aR,6bS,8aS,12aS,14aR,14bR)-8a-[(2S,3R,4S,5S,6R)-6-[[(2R,3R,4R,5S,6R)-3,4-dihydroxy-6-(hydroxymethyl)-5-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-2-yl]oxymethyl]-3,4,5-trihydroxyoxan-2-yl]oxycarbonyl-4,4,6a,6b,11,11,14b-heptamethyl-1,2,3,4a,5,6,7,8,9,10,12,12a,14,14a-tetradecahydropicen-3-yl]oxy]-3,4-dihydroxy-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxane-2-carboxylic acid	present	NPASS
(2S,3S,4S,5R,6R)-6-[[(3S,4aR,6aR,6bS,8aS,12aS,14aR,14bR)-8a-carboxy-4,4,6a,6b,11,11,14b-heptamethyl-1,2,3,4a,5,6,7,8,9,10,12,12a,14,14a-tetradecahydropicen-3-yl]oxy]-3,4-dihydroxy-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxane-2-carboxylic acid	present	NPASS
(2S,3S,4S,5R,6R)-6-[[(3S,4aR,6aR,6bS,8aS,12aS,14aR,14bR)-8a-carboxy-4,4,6a,6b,11,11,14b-heptamethyl-1,2,3,4a,5,6,7,8,9,10,12,12a,14,14a-tetradecahydropicen-3-yl]oxy]-3-[(2S,3R,4R,5S)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-4-hydroxy-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxane-2-carboxylic acid	present	NPASS
(3R,4aR,6aR,6aS,6bR,8aR,10R,12aS)-3,10-dihydroxy-2,2,6a,6b,9,9,12a-heptamethyl-1,3,4,5,6,6a,7,8,8a,10,11,12-dodecahydropicene-4a-carboxylic acid	present	NPASS
(3R,4aR,6aR,6aS,6bR,8aR,12aS)-3-hydroxy-2,2,6a,6b,9,9,12a-heptamethyl-10-oxo-3,4,5,6,6a,7,8,8a,11,12-decahydro-1H-picene-4a-carboxylic acid	present	NPASS
(3R,4R,4aS,6aR,6aS,6bR,8aR,10R,12aS)-3,4,10-trihydroxy-2,2,6a,6b,9,9,12a-heptamethyl-1,3,4,5,6,6a,7,8,8a,10,11,12-dodecahydropicene-4a-carboxylic acid	present	NPASS
(3S,4aR,6aR,6aS,6bR,8aR,12aS)-3-acetyloxy-3-hydroxy-2,2,6a,6b,9,9,12a-heptamethyl-10-oxo-1,4,5,6,6a,7,8,8a,11,12-decahydropicene-4a-carboxylic acid	present	NPASS

05DNA & barcoding50 specimens

A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Diaporthe helianthi has left across the world's sequence archives.

At a glance

DNA specimens50

Marker genes3

eDNA detections52

Countries12

Marker genes sequenced

★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.

★ITS★ITS1★ITS2

fungal barcode

06Genome at a glanceGoaT · NCBI

The complete instruction manual Diaporthe helianthi carries — its genome. We read it from three angles — how big it is, how the DNA is packed into chromosomes, and how completely it has been sequenced — and explain how to read each value as you go.

Genome sizehow big the whole instruction manual is

Genome size≈63 672 038 bp assembly estimate

Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).

BACTERIUM Carsonella ruddii0.00016 Gb

FUNGUS0.04 Gb

THIS GENOME Diaporthe helianthi0.06 Gb

INSECT0.25 Gb

HUMAN3.2 Gb

WHEAT17 Gb

FERN Tmesipteris160.45 Gb

Sequencing statusassembly quality — how far to trust these numbers

Assembly level tells you how finished the sequence is — from fragmented contigs, through scaffolds, up to a full chromosome-level assembly. BUSCO % estimates completeness: the share of genes expected to be present that were actually found. These describe the data quality, not the organism.

Assembly levelScaffold

Completeness98.9% BUSCO

08Occurrence & distribution

Record type19 records

Museum / vouchered18

Cultivated / captive1

Range

Area of Occupancy AOO60 km²

Museum / Voucheredphysical evidence

Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.

Coordinate accuracy

no georeferenced coordinates · 18 records without

Open the institutions mapphysical evidence18

Cultivated / Captivenot free-living

A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.

Coordinate accuracy

no georeferenced coordinates · 1 records without

Open the mapnot free-living1

Cultivated / Captivenot free-living

A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.

09Environmental DNA52 detections

Where the DNA of Diaporthe helianthi was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.

Signal

Detections DNA found52

Studies independent surveys3

Countries6

Verifiable raw sequence linked2

Signal confidence: moderateweighed across independent studies, places & mapped detections

Where its DNA was found

0 of 52 detections have coordinates

Open the map6 countries0

How strong is each trace?

DNA read depthRead counts were not reported for this species — the map shows presence only, not how strong each trace was.

Modelled climatemodelled

−15°Ctemperature across detection sites+40°C

Temperature median12.1 °C 11.2–17.7

Seasonal swing summer↔winter22.0 °C

Max temp (day)17.3 °C 15.2–22.2

Min temp (night)7.80 °C 6.60–12.9

Precipitation74.3 mm/mo 52.6–105

Air humidity58.8 % 57.3–63.0

Moisture balance-27.2 mm/mo -38.4–4.30

Vapour deficit697 Pa 606–893

Wind speed3.10 m/s 2.20–5.80

Cloud cover42.4 % 36.7–45.6

CHELSA 1981–2010, ~9 km grid, at location & month of 8 detection points · median with p10–p90 · reflects where sampling happened, not only the true niche

How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.

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