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1



Title

First Report of Alternaria alternata on Verbesina encelioides in Saudi Arabia


Author
-
s

K. Perveen and N. Bokhari

Contact lnfo

najatab@ksu.edu.sa

Tel. : 00966 1 4768171

Department

Dept. of Botany &
Microbiology

Major

Botany, Plant Taxonomy

citation


Year of
Publication

2011

Publisher


Sponsor


Type of
Publication

Article in Scientific Periodical Specialized Journal

ISSN


URI/DOI


Full Text
(
Yes,No)

yes

Key words





Abstract


In winter 2009, severe foliar infections were observed on Verbesina encelioides in the
greenhouse of the King Saud University at Riyadh (Saudi Arabia
). Symptoms appeared first as
greyish brown patches around the tips and margins of young leaves then extended towards the
midrib, causing curling and shedding, of the leaves. Leaf pieces with lesions plated on potato
dextrose agar (PDA) yielded fungal
colonies with brown septate hyphae bearing straight 1
-
3
septate conidiophores, 50x3
-
6 µm in size. Conidia were obclavate to ellipsoidal with a short
cylindrical pale
-
brown to light
-
brown beak with muriform septation and were usually solitary,
occasionally
in short chains. On potato carrot agar (PCA), mature conidia were 10
-
3x5
-
12 µm in
size, showed 3
-
7 transverse septa, 1
-
5 longitudinal septa and were borne in chains with more than
5 elements. Based on these morphological characters, the fungus was identif
ied as Alternaria
alternata (Simmons, 1992), confirmed by the Indian Type Collection Centre of the Indian
Agricultural Research Institute, New Delhi, and given I.D.No.7912.10. Healthy V. encelioides
seedlings obtained from the Botanical Garden of the Kin
g Saud University were grown in steam
-
sterilized soil and used for pathogenicity tests. Detached leaves and whole plants were
inoculated with a 5x105 ml
-
1 aqueous conidial suspension of the fungus (Pryor and Michailides,
2002). Detached leaves were mai
ntained in a chamber at near 100% relative humidity for 3 days
and inoculated plants were covered with a polythene bag and incubated at 28±2°C, in the
glasshouse. Plants/leaves sprayed with sterile water served as controls. Disease symptoms
developed with
in 3 days on inoculated leaves. Control plants remained unaffected. A. alternata
was re
-
isolated from the lesions, thereby fulfilling Koch's postulates. To our knowledge this is
the first report of a pathogenic A. alternata affecting Verbesina encelioides.

2




Title

Pollen Morphology of Plantago species native to Saudi Arabia and their taxononomic
implication

Author
-
s

Najat, A.


Bukhari

Contact lnfo

najatab@ksu.edu.sa

Tel. : 00966 1 4768171

Department

Dept. of

Botany & Microbiology

Major

Botany, Plant Taxonomy volume 2, number 3

citation

Biological Diversity and Conservation

Year of
Publication

2010

Publisher

BiodiCon

Sponsor


Type of
Publication

Article
in Scientific Periodical Specialized Journal

ISSN



ISSN 1308
-
5301 Print; ISSN 1308
-
8084 Online

URI/DOI

http://www.biodicon.com/makale/5.01.pdf

Full Text
(Yes,No)

yes

Key words

Plantago
, Pollen grains, Plantaginaceae, SEM




Abstract


Pollen grain morphology of 6
Plantago
species of the family Plantaginaceae collected from
Saudi Arabia have been observed under light and scanning electron microscope (SEM).
Description of grain sculpture is illustrated by SEM. Plantaginaceae is a stenopal
ynous family.
Pollen grains are free, medium
-
sized or small, radially symmetrical, apolar, porate, spherical
or prolate spheroidal in shape with verrucate granulated sculpturing. Internal aperture has
pores scattered on the wall of pollen grains. Identific
ation feature of individual taxa include
type of aperture, ornamentation of the pollen grain, annulus structure and pore diameter. The
pollen morphology of the family Plantaginaceae is significantly helpful at specific level. On
the basis of exine ornament
ation 2 distinct pollen types viz.,
Plantago


major and Plantago


vate


type are recognized.


3




Title

Floristic Composition of the Farasan Archipelago in Southern Red Sea and its Affinities to
Phytogeographical Regions


Author
-
s

Tomas, Jacob ; Hamad

Al
-

Farhan A. ; Sivadasan M. ; Samraqui B. ; Bukhari N.

Contact lnfo

najatab@ksu.edu.sa

Tel. : 00966 1 4768171

Department

Dept. of Botany & Microbiology

Major

Botany, Plant Taxonomy

citation


Arab Bureau of Education for Gulf States, Vol. 28, n. 2, pp. 79
-
90

Year of
Publication

2010

Publisher

ARABIE SAOUDITE

Sponsor


Type of
Publication

Article in Scientific Periodical Specialized Journal

ISSN


1015
-
4442

URI/DOI

http://cat.inist.fr/?aModele=afficheN&cpsidt=23953729


INIST
-
CNRS, Cote INIST : 20442,

35400019073122.0020

Full Text
(Yes,No)

yes

Key words

Farasan

Islands; floristic composition ; phytogeography ; Arabian Peninsula ; Somalia
-
Masai ;
endemism




Abstract



This Floristic affinities of the Angiosperm flora of Farasan Archipelago are analyzed.
Phytogeographically, it is an interesting area due to its
location between a floristically rich
North East Africa and the Arabian Peninsula. As per the current estimates, 201 species of
higher plants belonging to 49 families are present in an area of less than 600 km2. Among
these 2.5% are regional endemics and 1
5 (7.5%) species are, so far, not reported from any
other parts of the Arabian Peninsula. The endangered flora of the archipelago is of
conservation concern, which is poorly recognized, both nationally and internationally.
Populations of some of the locall
y endangered species are represented by 100
-
500 individuals
distributed in less than 5 km2. Among these Euphorbia collenetteae Al
-
Zahran and El
-
Karemy, an endemic species seen in limited numbers. The entire estimated degree of
occurrence of this species is

approximately less than 40 km2, with the actual area of
occupancy being less than 10 km2. Since the topography, climate and the overall vegetation of
these islands are more or less similar to that of the southwestern coastal regions of the Arabian
Peninsu
la and the area lies within the Somalia
-
Masai regional centre of endemism
(phytogeographical region), the majority of species are of African origin. Yet, islands also
contain a significant number of other species that shape the vegetation of the Tihama Reg
ion
of Jizan (Jazan) Province in the mainland. A detailed analysis carried out on various life
-
forms
shows that the highest percentage share of species (38.46%) is with the Somali
-
Masai
phytogeographical zone, followed by Tropical African (25.64%) and Saha
ro
-
Arabian
(16.02%) phytogeographical zones.


4




Title

First Report of Fusarium Wilt of Lavandula pubescens Caused by Fusarium oxysporum in
Saudi Arabia”. The American Phytopathological Society.

Author
-
s

Perveen, K.; Najat, A.


Bukhari

Contact lnfo

najatab@ksu.edu.sa

Tel. : 00966 1 4768171

Department

Dept. of Botany & Microbiology

Major

Botany, Plant Taxonomy

citation

The American Psychopathological
Society, Volume 94, Number 9, P. 1163.

Year of
Publication

2010

Publisher



Sponsor


Type of
Publication

Article in Scientific Periodical Specialized Journal

ISSN



URI/DOI

http://apsjournals.apsnet.org/doi/abs/10.1094/PDIS
-
94
-
9
-
1163B

Full Text
(
Yes,No)

yes

Key words

General biology


morphology


evolution


fusarium oxysporum


lavender (lavandula)




Abstract


During 2008, lavender (
Lavandula pubescens
) seedlings grown in Saudi
Arabia were observed with symptoms of dark coloration of the stems with red
or brown vascular tissue. The plant wilted and the root system was poorly
developed. The fungus
Fusarium oxysporum
was isolated from the diseased
plants.

The identification was confirmed by the Indian Agricultural Research
Institute in New Delhi. Pathogenicity of the isolates was demonstrated by
inoculation.

5




Title

Taxonomic Utility of palynological characters in the genus Heliotropium
(Boraginacea)
from Saudi Arabia

Author
-
s

Najat, A.


Bukhari

Contact lnfo

najatab@ksu.edu.sa

Tel. : 00966 1 4768171

Department

Dept. of Botany & Microbiology

Major

Botany,

Plant Taxonomy

citation

Taeckholmia

Year of
Publication

2010

Publisher


Sponsor


Type of
Publication

Article in Scientific Periodical Specialized Journal

ISSN



URI/DOI


Full Text
(Yes,No)


Key words





Abstract


6






Title

Effect of Ambient Gases on Respiration of Soil Supporting Four Crops in Central Saudi Arabia


Author
-
s

Akram

Ali

,

Ahmad

Alfarhan

,

Ibrahim

Aldjain

and
Nagat

Bokhari

Contact lnfo

najatab@ksu.edu.sa


Tel. : 00966 1 4768171

Department

Dept. of Botany & Microbiology

Major

Botany, Plant Taxonomy

citation

American Journal of Applied Sciences Volume 6, Issue 3

Pages 456
-
462

Year of
Publication

2009

Publisher

American Journal of Applied Sciences

Sponsor


Type of
Publication

Article in Scientific Periodical Specialized Journal

ISSN


URI/DOI

http://thescipub.com/abstract/10.3844/ajassp.2009.456.462

DOI:
10.3844/ajassp.2009.456.462

Full Text
(Yes,No)

yes

Key words





Abstract

This study was conducted at four localities (Maseef,
Naseem, Oleya and Industrial City) in
Riyadh city, KSA to determine the effect of increased tropospheric gases on responses of in situ
soil respiration (Rs) of wheat (Triticum aestivum L. cv. Giza 68), broad bean (Vicia faba L. cv.
Lara), kidney bean (Phas
eolus vulgaris L. cv. Giza 3) and pea (Pisum sativum L. cv.
Perfection) rhizosphere soil. These plants were grown to a full
-
season in pots to recieve four air
quality localities treatments. Daily mean of O3, SO2, NO2 and CO2 concentrations were
recorded by

portable gas analyzers in the center of studied localities. The Rs values were
measured monthly before seed germination, during all growth stages and after harvesting
(October, December, February, April and June) at three times during the day (morning, no
on
and afternoon) for each stage. The maximum values recorded for O3 in mid June, 2007 were
39, 77, 95 and 166 nL L
-
1, in Maseef, Naseem, Olea and Industrial City localities, respectively.
Significant decreases in Rs were observed for all polluted localiti
es in compared Maseef site
(less polluted). The greatest decreases in Rs were found at Industrial City followed by Naseem
and Oleya. More reductions in Rs were observed for the Industrial City treatments during
flowering and grainfill stages, while normal
respiration at Maseef area was recorded. This
study concluded that O3 injury can reduce the Rs by decreasing the activities and reactions in
soil supporting plants.

7















Title


“External &

Internal discretion of the seed morphology of some wild species growing in
Wadi Dhayqah in central region of Saudi Arabia”.


Author
-
s

Al
-
Ammari, B.S.; Bukhari, N.A.; Al
-
Turki, T.A.

Contact lnfo

najatab@ksu.edu.sa

Tel. : 00966 1 4768171

Department

Dept. of Botany & Microbiology

Major

Botany, Plant Taxonomy volume 2, number 3

citation

Saudi journal of Biological Sciences, Dec. 2009. 93:105


Year of
Publication

2009

Publisher

Saudi journal of Biological Sciences

Sponsor


Type of
Publication

Article in Scientific Periodical Specialized Journal

ISSN



URI/DOI



Full Text
(Yes,No)

yes

Key words






Abstract



8










Title

Some Observations on the Pollen Morphology of Silene L. (Caryophyllaceae) in Central
Saudi Arabia

Author
-
s

Najat, A.


Bukhari & Hanadi A. Al Gehany

Contact lnfo

najatab@ksu.edu.sa

Tel. : 00966 1 4768171

Department

Dept. of Botany & Microbiology

Major

Botany, Plant Taxonomy

citation

Taeckholmia. 29: 29
-
37.

Year of
Publication

2009

Publisher



Sponsor


Type of
Publication

Article in Scientific
Periodical Specialized Journal

ISSN



URI/DOI


Full Text
(Yes,No)


Key words





Abstract


9













Title

Micromorphological studies on seeds of Silene species from Saudi Arabia and their
taxonomic Significance.

Author
-
s


Najat A. Bukhari & Hanadi

A. Al
-
Gehany

Contact lnfo

najatab@ksu.edu.sa

Tel. : 00966 1 4768171

Department

Dept. of Botany & Microbiology

Major

Botany, Plant Taxonomy

citation

Taeckholmia

Year of
Publication

2009

Publisher

Taeckholmia

Sponsor


Type of
Publication

Article in Scientific Periodical Specialized Journal

ISSN


URI/DOI


Full Text
(Yes,No)

yes

Key words





Abstract



10





Title

Tropospheric

ozone effects on the productivity of some crops in central Saudi

Arabia

Author
-
s

Ali, Akram

;
Alfarhan
,
Ahmad

;
Robinson
,
Ernest

;
Bokhari
,
Nagat

;
Al
-
Rasheid
,
Khaled

and
Al
-
Quraishy
,
Saleh

Contact lnfo

najatab@ksu.edu.sa

Tel. : 00966 1 4768171

Department

Dept. of Botany & Microbiology

Major

Botany, Plant Taxonomy volume 2, number 3

citation

American Journal of Environmental Sciences: 4 (6); 631
-
637

Year of
Publication

2008

Publisher

Science Publications

Sponsor


Type of
Publication

Article in Scientific Periodical Specialized
Journal

ISSN



3551
-
145
X

URI/DOI

http://www.scipub.us
/

http://hdl.handle.net/123456789/2843

Full Text
(Yes,No)

yes

Key words

O3
-
Pollution , Short
-
term exposure, Crops, Growth,Reduction, Botany

and Microbiology,
Environmental Sciences, Agricultural Sciences




Abstract


This study was conducted to evaluate damaging degree of ambient ozone (O3
)
l evel s i n c er t ai n
ec onomi c al l y i mpo
r t ant c r ops i n t ypi c al ar eas of t he c ent r al

KSA ( Ri yadh). Dai l y mean ozone
c onc ent r at i ons wer e r ec or ded by por t abl e O3

anal yzer s i n t he c ent er of Bat ha, Nas eem, Ol eya and
I ndus t r i al Ci t y, f r om t he

begi nni ng of Oc t ober, 2006 t o mi ddl e of J une, 2007. Mas eef
ar ea was us ed
as

control because it is receiving fewer pollutants (O3 levels less than 40 nL

L
-
1). Selected crops
grown in pots were exposed to short
-
term of pollution at

defined localities. These crops include
Triticum aestivum L. cv. Giza 68

(
wheat), Vic
ia faba L. cv. Lara, (broad bean), Phaseolus vulgaris L.
cv. Giza 3

(
kidney bean) and Pisum sativum L. cv. Perfection (pea). The exposure indicators

of them
are length, injury symptoms, biomass and yield. The maximum values of

daily O3 were 125 nL L
-
1,
77
nL L
-
1, 95 nL L
-
1 and 166 nL L
-
1, in all the four

studied areas, respectively in mid June, 2007.
Results showed that the estimated

yield losses varied in all four studied areas, being 35, 9, 39 and
46%
,
respectively for wheat; being 16, 13, 21 and 33%, res
pectively for broad bean
;
being 22, 20, 28
and 45%, respectively for kidney bean and being 5, 3, 14 and

13
,%
respectively for pea. This
research recommended that these plant species

can be used to give bio
-
indicator significance to
assess ambient ozone
impacts

of different examined areas in KSA


11






Title

Relationship Between Plant Cover Type and Soil Properties on Western Coastal Region, Saudi
Arabia

Author
-
s

Hediat M.H. Salama and Najat Bokhari

Contact lnfo

najatab@ksu.edu.sa

Tel. : 00966 1 4768171

Department

Dept. of Botany & Microbiology

Major

Botany, Plant Taxonomy volume 2, number 3

citation

Journal of Applied Sciences Research, 5(8): 1040
-
1050, 2009

Year of
Publication

2009

Publisher


INSInet Publication

Sponsor


Type of
Publication

Article in Scientific Periodical Specialized Journal

ISSN



URI/DOI



http://www.aensionline.com/jasr/jasr/2009/1040
-
1050.pdf

Full Text
(Yes,No)

yes

Key words



Coastal sand dune, rising sea level, sea salt, basic saturation,
Tamarix nilotica
, Saudi Arabia




Abstract


A survey of soils and plant covers was conducted on the coastal plains of the western province
of Saudi Arabia to clarify the relationships between the soil properties and the plant cover type.
A belt transect of 80 m in length was established across each
study area. Four mixed plant
communities dominated by species such as:
Tamarix nilotica
in coastal sabkha,
Saliconrnia
qassimensis
in coastal sand dunes,
Aerva lanata
in sand plains, and
Bassia muricata
in wadis
areas were recognized. Soil types at the stu
dy area were determined to be sandy immature soil
and peat lamina soil. Their horizon sequences were described as surface, subsurface and

bottom layers, indicating layers of leaf litter, peat lamina and parent material, respectively.
Coastal sabkha and coa
stal sand dunes were characterized by a relatively high calcium
concentration in the soil horizons and tendency for podzolization in the volcanic deposit layer.
The subsurface layers in coastal sabkha and coastal sand dunes were characterized by some
peat
lamina accumulation because of the high groundwater table, volcanic deposits in the soil
profile and the strong influence of sea salt on the soil chemistry. The roots in the coastal
sabkha and coastal sand dunes were distributed more shallowly than those i
n the sand plains
and wadi areas, thus avoiding the high water table level as well as the influence of seawater in
the soil. Generally, the salt marsh showed high sodium concentration and base saturation,
indicating that this area was directly affected by
seawater. Recently, the periphery of the plant
covers on the coastal sand dunes has been declining because inundation caused by ground
subsidence.


12




Title

Photosynthetic responses of pea plants (Pisum sativum L. cv. Little marvel
)
exposed to
climate
change in Riyadh city, KSA

Author
-
s

Ali, Akram

;
Alfarhan
,
Ahmed

;
Aldjain
,
Ibrahim

;
Bokhari
,
Nagat

;
Al
-
Taisan
,
Wafaa

;
Al
-
Rasheid
,
Khaled

and
Al
-
Quraishi
,
Saleh

Contact lnfo

najatab@ksu.edu.sa

Tel. : 00966 1 4768171

Department

Dept. of Botany & Microbiology

Major

Botany, Plant Taxonomy volume 2, number 3

citation

African Journal of Biotechnology: 7 (15
;)

Year of
Publication

2008

Publisher

Academic Journals

Sponsor


Type of
Publication

Article in
Scientific Periodical Specialized Journal

ISSN



URI/DOI

http://repository.ksu.edu.sa/jspui/handle/123456789/2845?locale=ar

Full Text
(Yes,No)

yes

Key words

Photosynthesis,Growth stages, Pea, Gases, KSA, Saudi Arabia




Abstract

Pots study was
conducted to determine interactive effects of climate change

(
NO2, SO2 and O3) on
photosynthetic responses in pea. The seeds of pea plants

(
Pisum sativum L. cv. Little marvel) were
grown full
-
season in three pots

arranged at four localities in Riyadh city,

KSA. Photosynthetic rates
(Pn) were

measured three times during vegetative and reproductive stages with portable gas

exchange system (LI
-
COR 6400). In general, Pn rates were highly stimulated at

Elsefarat area and
highly reduced at the 2nd Industrial city

but variable at

other localities in Riyadh city. The data
showed continuous increases in Pn

rates during pre
-
flowering and early seed formation and drops
during late seed

formation stage. This study supports that the agricultural areas could have a

protec
tive role against adverse impacts of gases exposure in highly polluted

areas








13












Title

Taxonomical study of Seeds of
Resedaceae

Species of Kingdome of Saudi Arabia

Author
-
s

Najat Bukhari & Najla Al
-
shai

Contact lnfo

najatab@ksu.edu.sa

Tel. : 00966 1 4768171

Department

Dept. of Botany & Microbiology

Major

Botany, Plant Taxonomy

citation

Journal of King Saud university. 21 (47
-
58.

Year of
Publication

2007

Publisher

Journal of King Saud university

Sponsor


Type of
Publication

Article in Scientific Periodical Specialized Journal

ISSN



URI/DOI



Full Text
(Yes,No)

yes

Key words






Abstract



14










Title

Study of the seeds of
resedaceae

family in kingdom of Saudi Arabia


Author
-
s

Najat. A. Bokhari, Najla A. al
-
shaya


Contact lnfo

najatab@ksu.edu.sa

Tel. : 00966 1 4768171

Department

Dept. of Botany & Microbiology

Major

Botany, Plant Taxonomy


citation

Journal of King Saud University. Issue 3, Volume 21

Year of
Publication

2007

Publisher

Science Publications

Sponsor


Type of
Publication

Article in Scientific Periodical Specialized Journal

ISSN



URI/DOI

http://printpress.ksu.edu.sa/research.asp?rid=3402&id=4

Full Text
(Yes,No)

yes

Key words

Resedaceae


Caylusea


Ochradenus


Oligomeris


Reseda


Seeds




Abstract


Abstract. Flora of Kingdom of Saudi Arabia has four genera of Resedaceae: Caylusea,
Ochradenus, Oligomeris and Reseda. Some species of Resedaceae have not been determined.
The aim of this research is to study and determine the systematic status o
f the species of
Resedaceae found in Saudi Arabia by using the morphology of seeds and their surface texture
.Also measuring the seeds length using both of light and scanning electron Microscope
(SEM).





15












Title

systematic study of the Genus Cleome (
capparaceae)

in Saudi


Author
-
s

Mody S. Al attaby
,
Bokhari,
Najat, A

.

Contact lnfo

najatab@ksu.edu.sa

Tel. : 00966 1 4768171

Department

Dept. of Botany & Microbiology

Major

Botany, Plant Taxonomy


citation

M.SC.


Year of
Publication

1426

Publisher

King Saud University

Sponsor


Type of
Publication

Master thesis

ISSN


URI/DOI


Full Text
(Yes,No)

yes

Key words






Abstract






16























Title

Taxonomical and Biochemical comparisons of Arnebia L. genus in Saudi Arabia.


17













Author
-
s

Misferah al
-
shlawi

,
Bokhari,
Najat, A

.

Contact lnfo

najatab@ksu.edu.sa

Tel. : 00966 1 4768171

Department

Dept. of Botany & Microbiology

Major

Botany, Plant Taxonomy


citation

Master


Year of
Publication

2010

Publisher

King Saud University

Sponsor


Type of
Publication

Master thesis

ISSN


URI/DOI


Full Text
(Yes,No)

yes

Key words






Abstract