ahmad&baqri 1987 - nematodos de bengala occidental xviii tylenchorhynchinae

7/26/2019 Ahmad&Baqri 1987 - Nematodos de Bengala Occidental XVIII Tylenchorhynchinae

1/8

Bu l z o! Surv. India,8 (1-3) : 135-14 , 1987

NEMATODES FROMWEST BENGAL(INDIA)XVIII STUDIES ONTHE SPECIES O TH?SUBFA IL

' TYLENC OR NCHINAE(TYLENC ORH NCHIDAE TYLENCHIDA)

y

NA EEMAHMAD AND QA ER H. A RZo l g ical Survey f India, Calcutta

BSTR CT

Tylenchorh ynchu ma hhoodiSiddiqi & Bas r 959 is being recorded rom severa ca es o Burdwan, Birbhum, Murshidabad and Wes D najpur dis ricts of Wes Benga ylen horhynchu goldeniRash d Singh 982 is being considered a synonym of T. mashhoodi The s udy o h ype specimensof y en horhynchu warupiSi gh Khera, 978 reveals hat it is a synonym o T gojarti S urhan 966.The paper a so repor s the morphome ric variat ons n T goj r i Q ini u ciuapi a/u ( en 955Siddiqi 971 andMer iniu a ni (Allen 955) Siddiqi 970 are being repor ed f r the st time f omWes Bengal

NTRO UC ION

S ngh& Khera ( 978) and Chaturved&Khera (19 ;9) have reportedT mashh od iS dd q& Bas r, 1959 o the rh zosphereo d erent hosts at How ah, 4 Parganas,

!Hooghly, Nad a, Burdwan, Bankura and Mursh dabad d st cts of West Bengal S ngh

& Khera (1978) have also descr bed a new spec eslench rhynch swarupi (=now T

o arti Sturhan, 1966) ro 2 -Parganas and oo hly d strictsT y lench rhynchus nudus

Allen,1955 has been repo ted by Baq&'Ah ad ( 981) o d str ct Jalpa gur (West1Bengal) Baq & Ah ad (1 c.) have alsos ud ed the orpho etr c va at ons nIT nudus

The recent extens ve and ntens ve surveys

of plant and soil ne atodes conducted by theauthors n several d str cts of West Benghave reveale thatTylench rhynchus mashhoodi

s a w dely d str buted spec esThe present study a n deals w th th

orpho etr c var at ons n go artiandconcludes that T s arupi S n h& Khe a,1978 s a synony of the r er Ourobsersat ons are based on the study of thetype spec ens ofT s arupi a a lable n theNat nal Collect on of Zoolog cal Survey Ind a

A ER AL

All he spec mens have been ounted anhyd ous glyce n, eg stered and depos

n the Nat onal Collect on of Zoolog


2/8

136

Sur ey of ndia The ype speci ens(n= 4 ! ! & 18e e) of Tylenchorhynchus

swarupi Singh & Khera, 19 8, ava lable nhe Na ional Collec ion of Zoological Survey

of dia, have also been included in hepresen s udy

ylenchorhynchus mashhoodi Siddiqi&Basir, 1959

(Fig 1, A C}Syn 1959 lenchorh nchus mashhoodi Sidd q

Bas r Proc. 46th Ind an Sci Cong Par IV

(Abs.) : 35.1961 Ty enchorh nchus mashhoodiSidd qZ Parasitenkunde, 21 : 56 58.

1970 T lenchorh nchus mashhoodi BaqrJa rajpur Rev B asil Biol 0 : 6 -64

1978 Tylenchorh nchus mashhoodi S nghKhera Bull zoo/ Surv ndia 1 27 8.

1979 T lenchorh nchus mashhoodi Chaturved &Khera, Zoo! Surv India, Tech MongrNo 2 8 9 pp.

1982 Tylenchorh nchus goldeni Rash d S ng ,Indian J, Nematol 12 : 193 195 newsynonymy

Dimensions :Females(10) : L (mm) 0.53-0 6 (0 60)

SD = 0 4 a 25 29 8) SD= 1.20 b = 4 .85 5(5 1) SD= 0 37 c = 12-1 (15)SD= 1 89c'= 2 5-3 5 (3 )SD 1 96; V 5 -5 (5 )SD 3 G 0-29 (2 )SD=2 9 G=19-26 (21 6) SD=1 90 S yle ( m)15-19(15 9) SD 20 Me enchium ( m 10( 5)SD 0 66 m 50 56 (53 5)D 20

Males (10) : L (mm) 0 9 0 60 (0 5SD=0 0 a=2 -31(28) SD= 85; b= 65.1 (4 9) SD 0.15 c 14 16 (1 . )SD=0.92 c'=2.5 3 0 (2.7) SD=0.2 T 39 52(45 ) SD= .36 S yle m)= -17 15.SD=0.92 Me ench um (m) 8 9 (8 3)SD 0 2 m=50 53 52) SD 1 1 Spicules

Bu letin f the Z o ogica Survey f India

(m)=19 22 (19 ) SD=3 0 Gubernaculu(m) 0 12 10 5) SD=0.6

Habitat and l calit y Soil around roo s opaddy (Or yza sativa L ) a Saldar Dis ricBurd wan

Other ca iti s: Several locali ies in hedis ric s of Burdwan Birbhum, Murshidabaand Wes Dinajpur

Discussion : Rash d & S ngh (19 2)described a new species Tylenchorh y nchus

g denifrom soil around roo s of sugarcanehybrid, a Lucknow U P ) and di eren iai romT annulatus(Cassidy 1930) Golden,1971 and T. mashh di. From T. mashh odi

hey have di eren ia edT. g deni in havinga longer body, longer s yle , lower value of band larger number of ail annules Whilecomparing wi h the dimensions and descrip

ion provided by Allen (1955) and Baqri andJairajpuri (1970) ofT. mashho di, i is herebyno ed ha di eren ial charac ers used b

Rashid & S ngh (19 2) are ei her overlappingor ins gni can These are as follows : L0 7 0.82 mm agains L= 0 54 0.76 mm T. mashh odi s yle = 16-19 m agains16-19 m in T mashh od ; ail annules 19-3 agains 1 -29 inT. mash odi.

T is c mparision reveals ha he onlcharac er in which he descrip ion ofT g ldenidi ers from T mashh diis he higher

number of ail annules However, we feeha 19-36 ail annules aga ns 14-29 shouno be rea ed as diagnos ic charac er becau

his has been found highly variable charac erin Tylench rhynchus species (Baqri andAhmad, 19 1 in T. nudus and he presens udy inT. o arti). I is, here re, proposd ha T. ldeni is a synonym of T.mashh odi.


3/8

'

HMAD & BAQRl : N em ato de s fr m W . Be n g al

Tylench rhy nc us gofa rti Sturh an, 1966(Fig. , D F)

Syn. 1970. Tylencho hynchus goja t B qri nd J ir jpuri Rev B as . B ol30 64 65

1978 Tylencho hynchus swa pSingh and Kher

Bu l zool Sur Ind a,1 25-28, new synonymy

Dimensi ns :Narendr apur populati n : Tab le I

37

Birbhum p pulation

Females (9): L (mm)=0.57-0.63 (0.6 )S =0.03; a= 3 34(32.5) SD= .0 =4. 5.3(5. ) SD 0 7j C= 4- 5( 4.2)SD

0.44; c'=3.0 3.6(3 4) SD=0. ;V=52 60(54) SD =1 8 ; G1= 23 2 (25) SD= 67 =20 2 (23) SD 2.65 Stylet (m)=

6 7( 6 4) SD=0.53; Metenchium (m)9(8.6) SD=0.49 m=50 56 52 SD=2 50

K

H

M

Fig 1 Tylenchorhynchus ma hood (A C): A. Anterior end B Fem le t i ; C M e t il T goJ t(D F D Anterior end E Fem le t il F. Male tail. Qu n sulc us c pitatus(G J : G & HAnterior end; I & J: em le t ils Me n us /n s (K-N): K& L. Anterior end; M Fem let il; N Male t il.

( R ]


4/8

T BL I Morphometric an Allometric Variations in A lts o Tylencho hynchus goj rt . Io

Female (n= 4, paratypes of T. swarupi Ma e (n 8 paratypes o T swa upi)

Charac ers Range Mea S D. c. v %) ange Mea S D c v %)

en th m 478 637 55836 27 6 5 458-637 53444 0 8 . 5 a 26-3 30 1 84 6 1 28 35 33 2.68 8 1

4 5.7 5.1 0 28 5 5 4 5 5.8 5.0 0 36 7 2c 13-17 15 1.28 8 5 13 2 1 5 2 09 13 0c ' 2 6-3 2 2 9 0.16 5.5 2 3 3 0 2 7 0.24 8 . 9 V/ 52 58 53 1 64 3 1 55 66 61 3.56 5 8 G 24-30 27 2 3 8 8G 20-30 25 2 51 10.0

50-57 53 2 11 4 049 -5 4

53 2 534 8

Hea height m) 3 -4 3 3 0.20 6.1 3 -4 3.2 0 20 6.4Hea wi h (m 6-8 6 8 0. 6 6.8 6 8 6 4 0 62 9 7 Sty et 13-14 13 4 0.39 2 9 13-14 13.2 0 55 3 . 0 Stylet knobs m) 3 -3 .5 3.04 0.14 4 6 3- 3 .5 3 03 0 14 4.6Metenchium ( ) 7-8 7.1 0 42 5 9 7 8 7 2 0.38 5 . 3 Oe ophagus* m) 10 121 109 5.27 4.8 1 -1 5 107 4.12 3.9Me ian bu b* 49 58 54 2 80 5 2 4 9 -5 4 53 2.53 4 8Me ian oe ophageal u 10 13 12.4 0 49le gth m

4 0 10 13 11 8 0.81 6.9

Me a oe o hageal b lb 8 10 9.4 Q 65 6 9 7 10 8 6 0.78 9.1w th m bNer e ring* ) 66 76 71 3 13 4 . 4 66-74 69 2 52 3 .7

;

Excretory pore ( ) 80-95 88 3 94 4 . 5 7 9 - 94 873 24 3 4 ; Vul a* m 264-343 30418 50 6.1 - - -A terior gona ( 26 195 15417 50 11.0 - -

Po erior go a ( ) 108 182 141 9 56 14 0- - :

Q;

.

4 5 0

1ol 9 ,SO 704

35

1

29

2

24 5 0

.

6

vsa.,4 92 1 x

e

5 6

/

V 2 l5-0

5 0 0 5 0 6 0

BODY LENGTHQf)Tylenchorh n hus gojarti : Body length in rela io to po itio to me ia bulb, position ofexcretory pore and pos tion of vulv


6/8

a about . . a al bo y-wi th lo gPhasmi s i the a teri r half, 36-40% of tail

a usMale; Male resembles females i ge eral

morph log Spicules 18 24 (21.3) m l gme ially Gube aculum trough sha e , 7-10(8 8) m l g. Tail el gatec oi withacute termi us, 2 6-3.2 times the a al b ydiameter Phasmi s i the a teri r half, 334 % of the tail.

M rph metric and All metric variations :

The vari us m rph met ic a all metriccharacters a alyse statistically f r theirvariability i a u ts Nare rap r pulati )are prese e i Tab e I. T is has bee otethat the po iti f me ia eso hagealbulb, excret ry re a vul a are sig ica tly correlate with bo y le gth (Fig 2).The coe cie t of c rrelati s are respectivelyR=0.707, 0.728 a 0 929 The le gth of

stylet (R=0 432), es phagus (R=0 659),G a s (R=0.802) a Tail (R=0.234 if males a 0.460 i males) are ot sig ica tly corre late with the b y le gth.

m g the vari us m r h metr c allometric characters evaluate f r theirariability, the le gth of stylet a value f

' have bee u least variable, their C Vbei g 2.9 3 0% a 3.% respectively. he

highly variable characters (C. . > 0%) arele gth of ge ital bra ches (C.V. 11 4%),

agi a (C . =14%), value of c (C V. = 3%),a tail e gth (C V 1 % i males ly),le gth of guber aculum (C V 12%), atail a ules (C.V.=24%) Remai i gcharacters have bee u either mo eratelyvariable (C. .=4 6%) or markedly variable(C. =7 0%).

Remarks The rese t escriptio , baseo 2 paraty es fT swarupi,agrees with the

Bulletin f the Z l g cal Su ey Iescri tio provi e by i gh & Khe

( 978) except the i ere ces ote by uthe tail termi us a the f si f the it o i cisures i tail re i . Surprisithey (l c ) have rep rte a illustratstriate tail termi us whereas ur stuc rms that the tail termi us is sm(Fig. 1,E). This is rther eing co rmthat i er two i cisures se well bel w phasmi s i the tail regi (after Si gh

hera, "the i er tw i cisures fuse at tphasmi s).

Si gh & hera (1978) escribe swarupi Nare rapur, istrict 2Parga as (West Be gal) a separate it fT . vulgarisUpa hyay e al. 1974, T brev

neatus Williams, 1960 a T brassiSi iqi, 1966. The prese t stu y revthat their bservati s o tail termi usstriate i stea of smo th, has le the m

e ti cati f T g ertias a ew s ecI c , the specime s bel g t T g aHe ce, T swarupi is hereby rop sesy ym f g arti.S gh& hera ( 97were havi g 42 paratypes fT swarupibthey measure o ly 0 females a 0 ma

/

Quinisulcius capitatus (Alle , 1955)

Si iqi, 97(Fig. ,G-J)

96 . Tylenchorhyn hus ap tatus S ddiq , Z. pa s i t nkunde21 : 62-63.

1975 Quin sulcius ap tatusC omans & Sakoglu, Me ed Fa , Landbwel Gen .49 500

Dimensi ns Female( ): L (mm)=0.67-0 76 (0

SD 0.04 a= 20 33 (30 6) SD= .72b= 9-5 5 (5 2)SD= 0 21 ; c= 4-16 (1


7/8

AHM D & B QRI Nema odes f omW. Beng

SD 0.90; c' 6 .9 ( .7) D 0.10V= 5 -59 (55) SD .30 G 5 9 27)SD 1. 7; G = 2 5 (24) S =0.89; Stylet

m) 17 18 17.2) SD0 39; Metenchium(m) 8.5 9.6 9 1) SD=0.19; m=50 53 (52)SD= 1 46Desc ip ion

Female : Cuticle transversely striated,1- m apart. L ngitudinal lines absent,la eral elds marked by ve incisures, 1 5th1/4th f the b dy width near middle Lipre i n set fr m the dy, bearing 5 6

annules, 5 m hi h and ab ut 8 m wide.ead amew rk slightly scler tized. S ylet.3 imes the head width, its anterior

part metenchium) 50 53% the styletlength. Stylet kn bs ndented anteri rly,ab ut 3.0 3.5m wide. Hemiz nid ab ut

annules l n , situated a 1-5 annules abovethe excret ry p re Tail cylindrical endingin an acute sm th terminus, marked with

37- 4 annules ventrally Phasmids in theanteri r hal ( 3 37%) f the tailMale : Not f undHabita and calit y : Fr m s il ar und

r ts f Citrus sp. at Dalapchand basti,Kalimp n Darjeel g West Bengal.

Merlinios afinis (Allen, 1955) Siddiqi, 1970Fig. 1,K-N)

Dimensions :Fema e(4); L (mm) 0.78 0.91(0 4) SD

=0 06; a= 0 21(20.9) S 0. 2; b6.0(5 5) SD=0.36; c=13 16(15) SD .41;c = 1 1 .41(1.87) SD 0 42; V 53 56(54)SD 1 50 ; G 20 21 20.5) SD 0 58; G

14-20(18 0) SD= 2. 3; Stylet m)= 26 287 1) SD=0 85; Metenchium m)14 14.5

1 4) S 0 5 ;m= 5 5 53) S =0 96.

141

Male 2) : L m)=O 78 0.87 (0.8 ) SD=0.07; a= - 4( 3) SD=1 41 b=5.4-5.6(5.5SD=0.14 ; c=12 7(14.5) S =3.54; c =

1.93 .5( .3) SD =0.43; T = 29-40(35.4) SD= 7.78 ; Styl t m)= 6 28(7.0) S 1 2Metenchium )= 13 15(14) SD=1 41.

Descripti n Female : Cuticle transversely striated,

2 apart. L ngitudinal lines absent, lateralelds th !th f the b dy near the middle

Lip regi n slightly set fr m the b dyat a apex bearing 6 annules, 3 4 m hi

and 6.5 8.0 m wide. Head ramewoheavily scler tized. Stylet 6 2. times head width, its anteri r part metenchium.

ab u 50 54% stylet length. Stylet kn bslightly indented anteri rly Hem zonid 1annulesl ng, situated 0 1 annule ab ve thexcret ry p re Gonads typical to genuTail broadly r unded, marked with 3annules ventrally Phasmids i the anteri

half 30-35%) f he ail.Male : Similar t females in general

m rph l gy except the male enital systemand ail shape Spicules 4,m mediallyGubernaculum st ut 6 m long Tail el ngate conoid with acute ter inus, 1 9 .5 timethe anal b dy diameter Phasmids in han eri r half 37 5%) o the ail

Habita and l cal y F rm soil ar undr ts f Tea (Thea sinensisL.) eb ng,

ar eeling, Was Ben al

AcKN LBDGE ENT

The auth rs are ratef l t the Direc orZ l gical Survey ofIndia f r pr vidingresearch cilities. The nancial assistancefr m I.C.A R., New Delhi t c nduct th

surveys under All India C ordina ed


8/8

42

Research roject on Nematode P sts of Cropsand Their Control is also acknowledged.

EF R NCS

B Q .H. and]A RAJPURI,M. 1 70 Ont e intras eci c variations of Tylencho- rhynchus mashho di iddiqi & Basir1 59 and an emended key to sp cies ofTylench rhync hus Cobb 1 3 (Nematoda) Rev Brasil Biol.30 : 61 6

BAQR .H. and A D N. 1 81 Nematodes from West Bengal ( ndia) V .Morphomet ic and allometric variationsin Tylenchorhynchus nu us Allen 1 55

Tylenc or ync idae Tylenchida) Bull.zoo!. Surv. India 3 : 23 2 7

Bulletin f the Z l gica Survey of In ia

H TURVEDIY andKHERA . 1 7 tudieson Taxonomy biology and ecology ofne atodes associated with ute crop.Zoo . Surv India TechM n r No. 2 1-105

ASHID A. and S G , K 198 T y lench rhy nchus oldenisp. n. Nemat da: Tylenchida) rom sugarcane s il in India.Ind ian J. Nenatol., 2: 3 195

G R.V and KH R . 1 78 Plantparasitic nematodes fro t e rhizosp

ere of vegetable crops around Ca cutta.2 Family Tylenchorhynchidae. Bull.z ol Surv India1 : 25

/

ahmad&baqri 1987 - nematodos de bengala occidental xviii tylenchorhynchinae

Documents