Kobe
University, Graduate school of Agriculture
Bioresource Science,
Laboratory of Forest Resources
Prof. Keiko Kuroda
Kobe
University, Graduate school of Agriculture
Bioresource Science,
Laboratory of Forest Resources
Prof. Keiko Kuroda
Japanese version is here.
June, 2020
1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
Recent reports
1.Keiko Kuroda, Izumi Chuma,
Takeo Kihara, Tsubasa Murakami, Kuya
Takashina, Daiki Hiraoka, Norikazu Kameyama:
First report of Fusarium solani species
complex as a causal agent of Erythrina
variegata decline and death after gall
formation by Quadrastichus erythrinae on
Okinawa Island, Japan, J Gen Plant Pathol
83:344–357, DOI 10.1007/s10327-017-0738-3,
2017.
Download:10.1007_s10327-017-0738-3.pdf
2.Satsuki Sumida, Chie Kajii,
Takeshige Morita, Keiko Kuroda: Disease
development in Ficus cαγica seedlings after
inoculation with Ceratocystis ficicola. (2)
Microscopic analysis of the host-pathogen
interaction and internal symptoms (in Japanese
with English summary) Japanese Journal of
Phytopathology 11/2016; 82(4).
3.Takeshige Morita, Shota
Jikumaru, Keiko Kuroda: Disease development in
Ficus carica plants after inoculation with
Ceratocystis ficicola. (1) Relationship
between xylem dysfunction and wilt symptoms
(in Japanese with English summary), Japanese
Journal of Phytopathology 11/2016; 82(4).
4.Ayumi Shiraki, Wakana Azuma,
Keiko Kuroda, H. Roaki Ishii: Physiological
and morphological acclimation to height in
cupressoid leaves of 100-year-old
Chamaecyparis obtusa. Tree Physiology
10/2016; DOI:10.1093/treephys/tpw096
5.Takeo Kihara, Tsubasa
Murakami, Izumi Chuma, Norikazu Kameyama,
Keiko Kuroda: A pathological and anatomical
study on the factor of phloem necrosis and
wilt of Erythrina variegata. (in Japanese)
6.Takeshi Sasaki, Shota
Jikumaru, Wakana Azuma, Keiko Kuroda, Hiroaki
Ishii: Oviposition site selection by Japanese
gypsy moth ( Lymatria dispar japonica ) in a
warm-temperate secondary forest in western
Japan. Forest Science and Technology
03/2016;
DOI:10.1080/21580103.2015.1132782
7.Wakana
Azuma · H. Roaki Ishii · Katsushi Kuroda · Keiko
Kuroda : Function and structure of leaves
contributing to increasing water storage with
height in the tallest Cryptomeria japonica trees
of Japan. Trees DOI 10.1007/s00468-015-1283-3,
2015.
8.H
Ishii, W Azuma, K Kuroda, SC Sillett: Pushing
the limits to tree height: could foliar water
storage compensate for hydraulic constraints in
Sequoia sempervirens? Functional Ecology
04/2014, DOI:10.1111/1365-2435.12284
9.C Kajii, T Morita, K Kuroda
Laticifers of ficus carica and their potential
role in plant defense, IAWA journal
35(2):109-115, 2014 Full
text PDF download
10.Kajii, C., Morita, T.,
Jikumaru, S., Kajimura, H., Yamaoka Y. and
Kuroda, K.: Xylem dysfunction in Ficus carica
infected with wilt fungus Ceratocystis
ficicola and the role of the vector beetle
Euwallacea interjectus, IAWA Journal 34 (3):
301–312, 2013 Full
text PDF download
11.Kuroda K., Osumi K. and Oku
H.: Reestablishing the health of secondary
forests “Satoyama” endangered by Japanese oak
wilt: A preliminary report. Journal of
Agricultural Extension and Rural Development
4:192-198, 2012 (ISSN 2141-2154)
12.Asai M. and Kuroda, K. : Size
and density of resin canals are not factors
preventing pathogen activities in Pinus
densiflora cultivars resistant to pine wilt.
The 3rd meeting of IUFRO Working Unit 7.03.12
"Alien invasive species and international
trade", Tokyo, Japan, 10-13 June, 2012 pdf
download
13.Kuroda, K.: Monitoring of
xylem embolism and dysfunction by the acoustic
emission technique in Pinus thunbergii inoculated with the pine wood
nematode, Bursaphelenchus
xylophilus.
J. Forest Research 17:58–64, 2012
14.Kuroda,
K., Osumi, K. and Oku, H.: How to recover the
health of secondary forest “Satoyama” declining
by the Japanese oak wilt", Global change and
forest diseases: new threats new strategies,
IUFRO 2011 Working Party 7.02.02 Foliage, shoot
and stem diseases of forest trees, abstract, 23
- 28 May, 2011, Cantabria, Spain, 2011.05
15.Kuroda
K, Osumi K, Oku H: A social experiment for the
reconstruction of resilience in "Satoyama
Social-Ecological System" in Japan. XXIII
IUFRO World Congress, 2010 Seoul, Korea,
Technical Session H-02, Abstract No.S01504,
2010.08
16.Kuroda,
K.: Incomplete defense system of trees against
infection with pathogenic microorganisms. IAWA,
IAWS and IUFRO Conference, 23-26 June 2010,
MADISON, WISCONSIN, USA, 2010.06
17.Kuroda
K, Osumi K, Oku H: "Current style Satoyama
utilization to recover the forest health,
URBIO2010, Proceedings of the 2nd International
Conference of Urban Biodiversity and Design,
Nagoya, Japan, 18 -23 May 2010, S14-3,
P167, 2010.05
18.Kuroda,
K.: Anatomical factors related to the
resistance of pine trees to the pine wilt
disease. The 7th Pacific Regional Wood
Anatomy Conference, Kuala Lumpur, MALAYSIA, 3rd
to 5th. August 2009, Abstract, 2009.08
19.Keiko
Kuroda: Pine Wilt Disease, Zhao, Futai,
Sutherland, Takeuchi (Eds.), Part V Host
Responses and Wilting Mechanisms, 20
Introduction, 21 Physiological Incidences
Related to Symptom Development and Wilting
Mechanism. Springer, 202-222, 2008
20.Keiko
Kuroda: Pine Wilt Disease: A Worldwide Threat to
Forest Ecosystems, M.M. Mota, P. Vieira (eds.),
Part 6 Defense Systems of Pinus Densiflora
Cultivars Selected as Resistant to PineWilt
Disease. Springer, 315-322, 2008
21.Kuroda,
K.: Anatomical and noninvasive techniques to
detect the first internal symptom in diseased
trees. Symposium: A Century of Wood
Anatomy and 75 Years of IAWA, Botany 2006,
Chico, California, USA July 29 - August 2. Abstracts p.11, 2006
22.Kuroda,
K.: Defense systems of Pinus densiflora
cultivars selected as resistant to pine wilt.
Pine wilt disease: a worldwide threat to
forest ecosystems. 10-14 July 2006, Lisbon,
Portugal Abstracts
p. 47, 2006
23.Kuroda,
K., Kanbara, Y., Inoue, T. and Ogawa, A.:
Magnetic resonance micro-imaging of xylem sap
distribution and necrotic lesions in tree
stems. IAWA Journal 27(1):3-17. 2006.
(PDF file download)
24.Kuroda,
K., Ichihara, Y., Kanbara, Y., Inoue, T. and
Ogawa, A.: Visualization of a host
reaction in oak stems infected with a wilt
pathogen, Raffaelea quercivora, by magnetic
resonance imaging. 6th Pacific Regional Wood
Anatomy Conference 2005 Kyoto Japan, Abstracts
p.64-65, 2005
25. Kuroda,
K.: Xylem dysfunction in Yezo spruce
(Picea jezoensis) after inoculation with the
blue-stain fungus Ceratocystis polonica. Forest
Pathology 35(5): 346-358. 2005. (PDF file download)
26.Kuroda,
K.: Inhibiting factors of symptom
development in several Japanese red pine (Pinus
densiflora) families selected as resistant to
pine wilt. Journal of Forest Research 9:
217-224, 2004 (PDF file download)
27.Kuroda,
K., Ichihara, Y., Kanbara, Y., Inoue, T. and
Ogawa, A.: Magnetic Resonance imaging of
xylem dysfunction in Quercus crispula infected
with a wilt pathogen, Raffaelea
quercivora. Abstract of IUFRO Working
Party 7.02.02 FOLIAGE, SHOOT & STEM
DISEASES, June 13-19, 2004, Oregon, USA, P.16,
2004.
28.Kuroda,
K.: Degradation of Conifer Plantations in the
Kansai District. Bulletin of the Forestry
and Forest Products Research Institute,
2:247-254, 2003. (PDF
file download)
29.Kuroda,
K., Kanbara, Y., Inoue, T. and Ogawa, A.: Analysis
of NMR-CT images to detect the xylem
dysfunction and lesions in tree trunks.
Abstract of 5th Pacific Regional Wood Anatomy
Conference (Indonesia, Yogyakarta), IAWA
Journal, 23:469-470, 2002
30.Kuroda,
K.: The
mechanism of tracheid cavitation in trees
infected with wilt diseases. Proceedings of the
IUFRO Working Party 7.02.02 shoot and Foliage
Diseases, P.17-23, Hyytiala, Finland, 2001
31.Kuroda,
K.: Responses of Quercus sapwood to infection
with the pathogenic fungus of a new wilt disease
vectored by the barkbeetle Platypus quercivorus.
J. Wood Science 47: 425-429 , 2001 (PDF file download,
Abstract)
32.Kuroda,
K.: Anatomical assessment of age of infection
with resinous stem canker in hinoki
cypress (Chamaecyparis obtusa) and the factors
promoting resinosis. J. Jpn Wood Res Soc, 46(6),
503-509, 2000
33.Kuroda,
K. Kuroda, H. Lewis, A. M.: Detection
of embolism and acoustic emissions in
tracheids under a microscope: Incidence of
diseased trees infected with pine wilt. New
Horizons in wood Anatomy, ed. by YS Kim, Chonnam
Nat'l Univ. Press, Kwangju, Korea, 372-377, 2000
(The 4th Pacific Regional Wood Anatomy
Conference in Korea, 1998
34.Kuroda,
K.: Seasonal variation in traumatic
resin canal formation in Chamaecyparis
obtusa phloem. IAWA J. 19: 181-189, 1998
35.Kuroda,
K. and Kiyono, Y.: Seasonal Rhythms of Xylem Growth
Measured by the Wounding Method and with
a Band-Dendrometer: An instance of Chamaecyparis
Obtusa . IAWA Journal 18:291-299, 1997.
36.Kuroda,
K. and Yamada, T.: Discoloration of sapwood and
blockage of xylem sap ascent in the trunks
of wilting Quercus spp. following attack by
Platypus quercivorus. J. Jpn. For. Soc.
78(1):84-88, 1996.
37.Kuroda,
K.: Acoustic emission technique for the
detection of abnormal cavitation in pine trees
infected with pine wilt disease. International
symposium on pine wilt disease caused by pine
wood nematode (China). Proceedings 53-58, 1996 (PDF file download)
38.Kuroda,
K., Yamada, T. and Ito, S.: Bursaphelenchus
xylophilus induced pine wilt: Factors associated
with resistance. Eur. J. For. Path. 21, 430-438,
1991 (PDF
file download)
39.Kuroda,
K.: Mechanism of cavitation development in the
pine wilt disease. Eur. J. For. Path. 21, 82-89,
1991
(PDF file download)
40.Kuroda,
K.: Terpenoids causing tracheid-cavitation in
Pinus thunbergii infected by the pine wood
nematode (Bursaphelenchus xylophilus ). Ann.
Phytopath. Soc. Jpn. 55, 170-178,
1989 (PDF
file download)
41.Kuroda,
K., Yamada, T. and Mineo, K. Tamura, H.: Effects
of cavitation on the development of pine wilt
disease caused by Bursaphelenchus xylophilus.
Ann. Phytopath. Soc. Jpn. 54, 606-615,
1988
(PDF
file download)
Abstracts of older
publications: '96-2001
Keiko Kuroda:
Responses of Quercus
sapwood to infection with the pathogenic fungus of a
new wilt disease vectored by the barkbeetle Platypus
quercivorus. J. Wood Science 47: , 2001.
Quercus serrata and Q. crispula wilt during the
summer in wide areas along the Sea of Japan. Mass
attacks of trees by an ambrosia beetle (Platypus
quercivorus ) are characteristic before the
appearance of wilting symptoms. This study
investigated the pathogenic effects of a fungus
detected specifically in the wilting trees. This
fungus, tentatively named Ooak fungus, has a
distribution that correlates the discolored xylem
area called wound heartwood, in which vessels were
dysfunctional. Tylosis formation around the hyphae
indicates the vessel dysfunction. In the areas under
discoloration, the fungal hyphae were invading
living ray parenchyma cells from vessel lumen. As a
protective reaction, the ray cells exuded yellow
substances into the vessels. However, these
substances seemed ineffective against fungal
activity, probably because the fungus disperses
along the beetle's gallery before enough substance
could accumulate. It should allow the wide
discoloration in sapwood. Cambium was not necrotic
around the fungus. Cytological process in the host
was as follows: (1) Synthesis of secondary
metabolites by the stimuli of oak fungus, (2)
exudation of yellow substances into vessels, and (3)
dysfunction of vessels and wound heartwood
formation. In the wilting incidence of trees,
pathogenicity of the fungus should be assessed by
the ability to stop sap-flow.
Key words: Ambrosia
beetle, Xylem discoloration, Wound heartwood, Vessel
dysfunction, Secondary metabolites
Kuroda, K.:
Anatomical assessment of age of infection with
resinous stem canker in hinoki cypress
(Chamaecyparis obtusa) and the factors promoting
resinosis. J. Jpn Wood Res Soc, 46(6), 503-509, 2000
Highly frequent traumatic resin
canal formation in the phloem is characteristic of
resinous stem canker disease. A fungus, Cistella
japonica, was reported as a candidate for causal
agent, and some environmental factors may affect
extensive and long-term resinosis in tree trunks. At
several plantations in Maizuru and Kanazawa in
Japan, resin canal formation and resin production
appear to be active under conditions that promote
tree growth. In the plantations where this disease
was frequently observed, even trees without
resinosis contained traumatic resin canals. Such
trees are not healthy, but 'diseased trees without
visible symptoms'. Extensive resinosis is often
discovered at mature plantations about 20 years old.
However, the onset of this disease was estimated to
occur at the very young age of about 5 to 8 years,
based on the fact that wound resin canals are not
formed in the phloem more than three years old.
Disease-promoting factors should therefore be
surveyed tracing back to the earlier period. The
distribution of resin canals throughout a trunk
circumference suggests that the stimuli that induce
epithelial cell differentiation affect the entire
trunk. Some physiological aspects of trees may
relate to the sensitivity to resin canal formation.
Partial necrosis of cambium was observed in the
specimens with resinosis, except for the youngest of
age 11, and was associated with resin pockets.
Well-grown trees have a tendency to promote
resinosis and cambium necrosis.
Kuroda, K. Kuroda, H.
Lewis, A. M.:
Detection of embolism and acoustic emissions in
tracheids under a microscope: Incidence of diseased
trees infected with pine wilt. New Horizons in wood
Anatomy, ed. by YS Kim, Chonnam Nat'l Univ. Press,
Kwangju, Korea, 372-377, 2000 (The 4th Pacivic
Resional Wood Anatomy Conference in Korea, 1998,
IAWA Journal 19(4) P.463-464 1998).
Xylem-sap in the water conduits
is kept under tension when transpiration is active.
The conduit's water columns can break under high
tension and form bubbles (emboli). In healthy
plants, water columns recover by rehydration when
the tension is reduced. In trees infected with
wilting diseases, however, sap ascent finally stops
without recovering in dehydrated xylem areas. We
observed embolism in light-microscope sections of
diseased trees and confirmed the relationship
between bubble development and acoustic emissions
(AEs) that are detected at embolism. We discuss the
mechanism of water blockage in pine wilt disease.
Three-year-old Japanese
red-pines (Pinus densiflora), inoculated with pine
wood nematodes (Bursaphelenchus xylophilus) and
healthy trees, were used. Embolism was observed on
radial sections (1x6mm) of 60 µm thick that contain
a layer of intact tracheids, and was recorded on
videotape (Lewis' method). At the same time, AEs
were monitored with an AE-transducer attached to the
sections. As the second experiment, the time
necessary for the rehydration of healthy and
infected pines following the addition of water was
compared.
First, dehydration without AEs
occurred from cut-ends of tracheid injured during
sectioning. Then, bubbles emerged near the centers
of intact tracheids, abruptly swelled, and filled
whole tracheids. Such bubble expansion is thought to
occur by the evaporation of water into a very tiny
bubble. During high-rate bubble formation, AEs were
produced. We successfully recorded AEs as
audible-sound through the audio terminal of the VTR.
The AEs coincided with almost all of the rapid
bubble development. This result supports the idea
that AEs detected in the trunks of living trees are
produced by embolism in tracheids. Two weeks after
inoculation of the pathogen, water blockage by
embolism had just occurred in a part of the xylem.
In such trees, the time necessary for rehydration is
longer than in healthy trees. It suggests that
certain substances that inhibit bubble dissolution
may exist in xylem.
In detail, see movie
Keiko Kuroda:
Seasonal variation in
traumatic resin canal formation in Chamaecyparis
obtusa phloem. IAWA J. 19: 181-189, 1998.
Trunks of Chamaecyparis obtusa were injured to
examine the seasonal differences in traumatic resin
canal formation in secondary phloem. Even after the
wounding during winter, differentiation of axial
parenchyma into epithelium was initiated, and
vertical resin canals formed. After winter wounding,
resin canal development was slower, the tangential
extent of resin canals was narrower, and it took one
to two months until resin secretion began. After
spring wounding, the sites of resin canal formation
were the one- and 2-year-old annual ring of phloem.
In August, the location shifted into the current and
one-year-old annual ring. Resin canals never formed
in areas that were 3 or more years old. In C. obtusa
trunks that are affected by the resinous stem
canker, numerous tangential lines of resin canals
are found throughout the phloem, not just recent and
1--2 year old phloem. The present research indicates
that these many lines of resin canals were not
formed at one time, and that the stimuli that induce
traumatic resin canals must occur repeatedly over
many years. The data on artificial wounding effects
are useful for understanding resinous stem canker.
Key words: Traumatic resin canal, secondary phloem,
Chamaecyparis obtusa, resinous stem canker, injury
Keiko Kuroda and
Yoshiuki Kiyono:
Seasonal Rhythms of Xylem Growth Measured by the
Wounding Method and with a Band-Dendrometer: An
instance of Chamaecyparis Obtusa. IAWA Journal
18:291-299, 1997.
The pinning method for the
measurement of xylem growth was modified for easier
application. Trunks of Chamaecyparis obtusa were
monthly incised with a knife instead of a thin
needle. Two years later, xylem blocks including
wounded areas were all harvested, and xylem growth
curves for two years were reconstructed from the
sites of wound tissue. Circumferential increases
were measured with the band-dendrometer on the same
trees for comparison. Measurement by wounding method
indicated a tendency for cambial cell production to
accelerate twice a year, around May and August.
Circumferential increase measured with the band
dendrometer differed from radial growth. It was very
small around August and continued after the
cessation of cell-production. The climatic data near
the plantation suggested circumferential size of
trunks is probably affected by the physical
shrinkage of trunks because of water shortage during
the drought season and trunk swelling following
precipitation. Circumferential increments did not
reflect the seasonal rhythms of xylem growth.
Therefore, for the detailed information on the
radial growth within a season, the wounding method
is recommended. Key words: Xylem growth, pinning
method, wounding method, band- dendrometer, drought
shrinkage, Chamaecyparis obtusa .
K. Kuroda and T. Yamada:
Discoloration of sapwood and blockage of xylem sap
ascent in the trunks of wilting Quercus spp.
following attack by Platypus quercivorus. J. Jpn.
For. Soc. 78:84-88, 1996.
Many deciduous oak trees, Quercus
serrata and Q. crispula are wilting during summer in
the wide areas of Honshu island of Japan along the
Japan sea. Such forests that had been used for
charcoal production are not managed appropriately
now. Prior to wilting, mass attacks by an ambrosia
beetle, Platypus quercivorus , into trunks were
observed. A specific fungus, which is carried into
xylem via beetles' mycangia, had been detected from
wilting trees. We discussed on the determinant
factor of this oak wilting, from the observation of
tree tissues taken from trees attacked by the
beetle. Following the beetles' invasion, xylem
discoloration had occurred in sapwood surrounding
long galleries whether the tree is wilting or not.
Fungal hyphae were found in vessels near the
galleries. The xylem sap ascent was blocked at such
discolored xylem like heartwood. Discolored area
became maximum where beetles' gallery elongated in
high density usually from the base to the breast
height of trunks. Before the start of wilting
symptom, sap ascent had been completely blocked in
trunks at the height of maximum discoloration for
most vessels became dysfunctional in the current
annual ring, and occasionally cambium was necrotic.
Research field
✴Forest
pathology and Forest health
✴Functional
anatomy of trees
✴Tree physiology
Publications
- Takashina K, Izumi C, Kajimura H, Kameyama N, Goto C, Kuroda K: Pathogenicity and Distribution of Fusarium solani Isolates Associated with Erythrina Decline in Japan. Plant Dis. 104(3):731-742, 2020, doi: 10.1094/PDIS-01-19-0044-RE. Open access : Download from here.
-Kuroda
K, Myokai N, Azuma W: Functional strategy of
lianas Wisteria and Actinidia spp. against
drought stress: The role of narrow vessels and
axial parenchyma. XI International workshop on
Sap flow, Hyytiälä forestry field station,
Finland, October 7-11, 2019
-Yamada K, Azuma W, Ishii H, Kuroda K: Functional strategy of Cinnamomum camphora to recover embolism and survive the drought condition. XI International workshop on Sap flow, Hyytiälä forestry field station, Finland, October 7-11, 2019
-Keiko
Kuroda, Izumi Chuma, Takeo Kihara, Tsubasa
Murakami, Kuya Takashina, Daiki Hiraoka,
Norikazu Kameyama: First report of Fusarium
solani species complex as a causal agent of
Erythrina variegata decline and death after
gall formation by Quadrastichus erythrinae on
Okinawa Island, Japan, J Gen Plant Pathol
83:344–357, DOI 10.1007/s10327-017-0738-3,
2017. Open access
Download:10.1007_s10327-017-0738-3.pdf
-Satsuki Sumida, Chie Kajii, Takeshige Morita, Keiko Kuroda: Disease development in Ficus cαγica seedlings after inoculation with Ceratocystis ficicola. (2) Microscopic analysis of the host-pathogen interaction and internal symptoms (in Japanese with English summary) Japanese Journal of Phytopathology 11/2016; 82(4).
-Takeshige Morita, Shota Jikumaru, Keiko Kuroda: Disease development in Ficus carica plants after inoculation with Ceratocystis ficicola. (1) Relationship between xylem dysfunction and wilt symptoms (in Japanese with English summary), Japanese Journal of Phytopathology 11/2016; 82(4).
-Ayumi Shiraki, Wakana Azuma, Keiko Kuroda, H. Roaki Ishii: Physiological and morphological acclimation to height in cupressoid leaves of 100-year-old Chamaecyparis obtusa. Tree Physiology 10/2016; DOI:10.1093/treephys/tpw096
-Takeo
Kihara, Tsubasa Murakami, Izumi Chuma, Norikazu
Kameyama, Keiko Kuroda: A pathological and
anatomical study on the factor of phloem
necrosis and wilt of Erythrina variegata. (in
Japanese)
-Takeshi
Sasaki, Shota Jikumaru, Wakana Azuma, Keiko
Kuroda, Hiroaki Ishii: Oviposition site
selection by Japanese gypsy moth ( Lymatria
dispar japonica ) in a warm-temperate secondary
forest in western Japan. Forest Science and
Technology 03/2016;
DOI:10.1080/21580103.2015.1132782
Research subjects
Embolism and cavitation
in wilting disease
Pine wilt caused by Bursaphelenchus xylophilus
Mass mortality of oak
trees caused by Raffaelea
quercivora
(Japanese oak wilt)
Wilt disease of Picea and Larix species caused by
blue stain fungi Ceratocystis
sp.
•Reaction
of host cells against pathogen
•Formation
of wound heartwood
•What
is the indicator of healthy forest?
•The 9th
Pacific Regional Wood Anatomy Conference,Bali,
Indonesia, Aug. 2017
K Kuroda, I Chuma,
K Takashina, T Kihara, T Murakami, D Hiraoka, N
Kameyama: Causal agent of Erythrina
variegata decline and mortality is not
a gall wasp Quadrastichus
erythrinae but a fungus belonging to Fusarium solani species
complex, 9th Pacific Regional Wood Anatomy
Conference, Bali, Indonesia, Aug. 2017
K Takashina, T
Kihara, C Goto, I Chuma, K Kuroda: Pathogenicity
of a fungus belongs to Fusarium
solani species complex to Erythrina variegata,
9th Pacific Regional Wood Anatomy Conference,
Bali, Indonesia, Aug. 2017
NMyokai, K Kuroda
: Ecological and functional strategy of lianas
judging from distribution of parenchyma and
tracheids in Wisteria
and Actinidia
spp., 9th Pacific Regional Wood Anatomy
Conference, Bali, Indonesia, Aug. 2017
Noguchi Y, ISHII
H, Kuroda K : Anatomy and hypothetical
experiments to demonstrate the role of
parenchyma and tracheids to keep water
conduction in Cinnamomum
camphora, 9th Pacific Regional Wood
Anatomy Conference, Bali, Indonesia, Aug. 2017
•The 9th
International Symposium of Pine Wilt Disease,
Seoul, South Korea; 08/2016
Keiko Kuroda,
Akira Kenmochi: Risk of killing uninfected pine
trees by the repeated trunk-injection of
nematicides to prevent pine wilt. The 9th
International Symposium of Pine Wilt Disease,
Seoul, South Korea; 08/2016
Kohei Kitagawa,
Kana Hotta, Takeo Kihara, Ayumi Shiraki, Hiroaki
Ishii, Keiko Kuroda: Sustainable management of
"Satoyama" secondary forest after the extensive
damages by pine wilt in the western Japan. The
9th International Symposium of Pine Wilt
Disease, Seoul, South Korea; 08/2016
•Takeshi
Sasaki, Keiko Kuroda, Hiroaki Ishii, Kana Hotta,
Shohei Matsukawa; Japanese oak wilt and grazing
damage by shika deer are threatening the health
of secondary forests, “Satoyama”, URBIO, Korea,
2014
•The 8th
Pacific Regional Wood Anatomy Conference, 17-21
October 2013, Nanjing Forestry University, China
Keiko Kuroda:
Collaboration of wilt pathogen and vector beetle
induces extensive xylem dysfunction and wilt
symptom successfully.
C. Kajii, K.
Kuroda, et al.: Xylem dysfunction in Ficus carica infected
with a wilt fungus Ceratocystis
ficicola and the role of the vector
beetle Euwallacea
interjectus
C. Kajii & K.
Kuroda: Laticifer structures of Ficus carica L.
•
International Congress on Biological Invasions,
October 2013, Qingdao, China (IUFRO Working Unit
7.03.12)
Keiko
Kuroda : Pine wilt in Japan: Insufficient
understanding of the mechanism of disease
development even a century after the invasion.
Download of ”THE MONTESCLAROS
DECLARATION” on the invasive
tree diseases and pests.