Table 2 Lesion development on ‘Kansas’ and ‘Sarah Bernhardt’ peony leaves inoculated with Botrytis isolates.

From: Genetic analysis reveals unprecedented diversity of a globally-important plant pathogenic genus

Species

Isolate code

Symptom

Kansas

Sarah B

Trial 1

Trial 2

Trial 1

Trial 2

Avg. lesion dia (mm)

No. of leaves with lesions (n = 3)

Avg. lesion dia (mm)

No. of leaves with lesions (n = 3)

Avg. lesion dia (mm)

No. of leaves with lesions (n = 3)

Avg. lesion dia (mm)

No. of leaves with lesions (n = 3)

AKBot1

SP03

Blasted bud

14.0

1

23.5

1

0.0

0

0.0

0

AKBot2

HA13

Flower bud decay

16.0

1

0.0

0

12.5

1

22.0

1

AKBot3

FH04

Leaf tip dieback

13.0

2

0.0

0

12.2

3

0.0

0

MS04

Blasted bud

9.0

1

0.0

0

8.5

3

0.0

0

NP19

Blasted bud

10.5

2

9.0

1

18.2

3

0.0

0

AKBot4

BP17b

Shoot dieback

13.7

3

12.0

1

12.5

1

9.0

1

EL01

Foliar lesion

0.0

0

0.0

0

10.3

3

0.0

0

GBG35

Foliar lesion

0.0

0

0.0

0

8.5

2

11.0

2

GO03

Flower bud decay

13.0

1

0.0

0

8.3

3

0.0

0

MS01

Flower bud decay

0.0

0

0.0

0

10.8

3

0.0

0

MS01b

Shoot dieback

10.5

3

11.0

1

9.5

2

0.0

0

NP18

Blasted bud

13.0

1

0.0

0

7.8

2

0.0

0

NP24

Foliar lesion

0.0

0

9.5

1

7.5

1

0.0

0

AKBot5

COOL02

Foliar lesion

37.7

3

23.2

3

23.3

3

35.2

3

COOL03

Foliar lesion

18.0

3

23.8

3

13.5

3

29.7

3

COOL08

Foliar lesion

25.0

3

19.7

3

10.0

3

26.0

3

CR05

Foliar lesion

20.8

3

21.8

3

24.0

3

30.3

3

HA24

Shoot dieback

34.2

3

16.5

1

27.5

3

23.0

3

SP02

Flower decay

29.2

3

22.0

3

15.5

3

27.5

3

AKBot6

NP21

Leaf tip dieback

‘22

2

12.5

2

17.5

1

32.5

1

AKBot7

GBG49b

Lesion at petiole

0.0

0

24.5

0

32.5

1

27.5

1

AKBot8

AP04

Blasted bud

26.2

3

38.0

3

0.0

0

29.2

3

AP05

Foliar lesion

36.5

3

53.3

3

38.2

3

48.0

3

AkBot9

GBG03

Basal stem decay

12.0

2

9.5

1

14.0

1

0.0

0

GBG57

Shoot dieback

12.8

3

0.0

0

16.5

1

0.0

0

WABot1

DG37

Foliar dieback

0.0

0

0.0

0

0.0

0

0.0

0

WABot2

DG60

Foliar dieback

0.0

0

0.0

0

0.0

0

8.5

1

DG67

Blasted bud

18.0

1

0.0

0

0.0

0

0.0

0

DG68

Blasted bud

0.0

0

0.0

0

8.5

3

0.0

0

WBC07b

Leaf tip dieback

0.0

0

0.0

0

31.0

1

0.0

0

B. cinerea

MS05

Flower decay

14.7

3

23.7

3

30.0

3

21.5

3

B. paeonia

AR05

Basal stem decay

58.7

3

48.3

3

0.0

0

64.5

3

  1. Plugs of potato dextrose agar colonized by the Botrytis species were placed onto detached peony leaves and incubated at 20 C in the dark. Due to differences in rate of leaf colonization among trials, data are from 4, 6, or 7 days post inoculation. Symptoms describe the original host tissues from which the isolates were obtained.