ECOLOGICAL STUDIES ON TILE SYMBIOSIS OF TER ITOMYCES ...

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symbiosis. - The fungus doea not OtILEM outside the environment provided by the termites and in dependant on the tormitets to provide food* The termLtes cannot establish viable colonies without the presence of Termitomnem on tlie fungus ccob. Haimls view of the relationshIp led him to propone (11olin 1977) that tho progression of the evolution was that the Ditormitomyces. which grow through the soil from the underground combs, were followed by the Praetermit2=cps which the termites expelled from the nest. The next step was the non-basidiocarp forming Termlt2Mces of the Madagascar 9 373o MicrotormeM., and finally the most advanced being ýýhaeroternen sphaerotharax which has got rid of the mycotOten " mycolim an wall, There must be both advantages and disadvantages to this relationship for the temitcs# with the advantages winning As the Macrotermitinae are very successful, for example dominating the termite fauna of the West African savannas (Wood and Sands 1978)e Species such an FIncrotermes be. ilicosus are able to produce very large stablo colonies which may continue for 20 years* Tho fungus enables them to exploit sound wood and crops which may be Inaccessible to other species, resultino In Microtermes being one of the major termite crop pests. The fungus enables them to utilize the food more efficiently with funguz combs being completely recycled* In contrast the carton of other species still contains 110nin and collulosoe Disadvantages Include the fact that far more food has to bo collected than In species without fUngit resulting In an IncrVased drain on the Colony's resources by predation on forager** Foundation of new colonLoo is made an even more risky business by the necessity of establishing
a viable fungus combo Construction and maintenance of fungus combo will also be necessary* Overall the advantagea'of'thd symbidals, including providing the termites with a nutrient concentrated food source obviously outweighs the disadiantages.,; 374-
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ECOLOGICAL STUDIES ON TILE SYMBIOSI
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The establishment of Tennisces in n
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3*1,5 The effect on spore geminatio
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5-7 PRI-: VMTION OF SPORE CM1111NAT
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LIST OF FIGURES Legends have been a
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LIST OF TABLES 1, egends have been
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5.2.6 Fungi cultured by direct isol
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6.21.6 The first flight and appeara
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LIST OP PLATES Leoends have been ab
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GENMAL INTRODUCTION Termites are In
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Popudacanthotermes Ethiopian 2 Spha
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(Bela perse comj, China (Cheo, 1948
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alAPrER ONP A HISTORY OF THE STUDY
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there van a connection between the
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etween A. duthipi and the basidioca
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Intentionally by the termites and r
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MAKER " WO GENERAL DESCRIPTIONS OF
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plots remained as woodland, 2 were
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p5 4 Experimentý! _ý, Plots ß. %
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TAMZ 2olol ChemIc&I and particle si
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TABLE 2.2.1 Monthly rainfall figure
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ff, tn II c14 21 CII ID Ct 8 U b- 4
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-ff C: ) 0 CO 0 (0 6060,0', 6::.. 0
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The soldiers may also be dimorphic,
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PLATE 2.3.1. Macrotermes bellicosus
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2.3-2 SPECIES OF TMtITES STUDIED An
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season (Collins 1977)o It forages u
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PLATE 2.3.2 Ancistrotermes cavithor
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PIATE 2.3.4 Macrotermes bellicosus
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. OWIA fr/ o"m law pp ,. 1, ýP, --
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,.; ý; I.. 4, .. . 4, WL r7.. I It
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They forage an the surface in the w
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MIC. 1 toots CAL& Ail
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2.4.1 TMMXTOMYCES IN NATURE 2*4 TMM
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CHAPTEn WEE DETERMINATION OF ISOIAT
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depth was the same for all plates a
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0,05 ol-l (Eckert et al. 1961)- As
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(e) Cornmeal agar CUS04- 51lqO@ (g)
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and Penicilliun. Several Banidlomyc
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(e) Sorbic acid Sorble acid at 0.05
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TABLE 3*lo2 Antifungal substances p
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- uu b- nnmn 0000 %_. §.. A %. 0 W
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ý1- old ý 0 ýa 1. -0 . -% 0 I. A
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3-1.3-',, ', ConclusiOns (1) Substa
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Q2 bw- 0 ). d 5. 8 (+ 0 c (2 c: :1
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0 0o1: 1, .n R a I- ? in p pp 6- 0
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'"l r 8 (A fl- bo. '2 lot. a -4 1-
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(1) Substances appearino to be unsu
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slight controlling Offect on the _P
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CWI (3) - MI + Denlate (OoOl gl-Jý
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I II It UU f) n oo (D iD aa bd. to
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distilled water 19000 ml Kl'. ': IP
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3*2*3 ]RESULTS AND DISCUSSION The r
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3.3,1 3-3 DETEMINATION OF THE OPTIK
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TABLE, 3.3.3 Analysis of variance o
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SLn3 21 MOC 240C 290C 320C 350C 20K
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Mean diameter of colony (m m) 16-1
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FIGURE 3.3-3. Mean diameter of Term
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Mean diameter of colony (M m) 16 14
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Change in mean diametE (mm) 1 day 1
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[3-[3 Macrotermes bellicosus A-A M.
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3-3-4 DISCUSSION The growth curves
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Tbis species in not mound building
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3.4.1 INTRODUCTION 3*4 MMIMNATION O
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Between rIlls Interaction 4. o - 4-
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OD 154 4. o 4.3 4.6 4.9 5. " 5.5 4.
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Mean 15 I diameter 13 I 9 1 7 5 of
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Mean diameter of colony (M m) 20 -t
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tolerant of low 01 values than thos
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3.5 GROWTH OF DIFFERWT TLP-MITOMYCE
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FIGURE 3-5-1- (a), (b)v (c), (d), (
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16- Me an 1 0 diameter of colony (m
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TABLE 3-5.12 Analysis of variance o
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TABLZ 3.5.3 The growth of Termitomy
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FIGURE 3.5.2. Regression of growth
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CHAPTEn FOUR TERHITOWCES IN CULTURE
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44 (A ig In tr ý (+ re- m 0 fD r (
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to F IR 0 0 t oe l l. aW 0 ýa 9)-
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AN 93
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IS 5' SI PLATE Termitomyces culture
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PLATE 4.1.2. TermitomIces cultures
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TA= 4,1,3 production of cultural my
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TABLE 4.1.5 Production of mycotUtes
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more favourable for their productio
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#W. FA 40 60 0 P. * n ic 3 32 f+ ti
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": I p I a *m. ". 4 S 0 (+ 11 3 -%A
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1649 FIGURZ 4*2*1* Lengtb, of Termi
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FIGURE 4.2*2. Width of Termitomyces
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4.2.3 -PISCUSSION Spores were not p
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4.3.1 MMUDS 4.3 BLASTMPME, GMMINATI
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a0 FiGuRE 4.3-1- (a)q (b), (c), Pro
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4.3.3 DISCUSSION The blastospores g
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5-1-1 INTPODUCTION 5.1 HMIMS In ord
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The Isolation of Termft2=ces, posiD
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developing on the plates. %- The nu
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TABLE 5*14 Number of fungal colonie
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5 days when the fungi were assigned
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circumferences of queen cell (Plate
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PLATZ- 5.2.1, Fungus comb removed f
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TABLE 5*3*1 The dimensionx of vario
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TA13LE 5,2.5 Density of Macrotermes
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J*- i 0--k M0 '0 0 b-0 101 1.0 V 42
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i TABLE 5*2.8 Analysis of variance
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1 TABLE !;, 2*10 Similarities In fu
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After approximately I week In the n
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time In the foodstore-lUngua comb s
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TABLE 5., 2*12 Mean number of Terml
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Discussion In comparing Tables 5-2*
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TABLE 5.2olt& Presence of bolus In
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m 10 0 Md re m La 0 > r 1 eg o V3 (
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5-3-1 IIMZODUCTICV AND MVIODS 5-3 M
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D 0*0 ft *** a siqnlficaný dIffere
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5,3*3 DISCUSSION There In a signifi
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"'"30 plates of "ch medium were set
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TADLE 5.4.2 He= number of t=gal tol
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The levels of significant differenc
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222o NUMB NURSE FORAGERS FORAGERS W
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On the selective medium dilution pl
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ýo 9 n er e 2: le 0-ý n 9 bm 2ý
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In the dloostive system of H, belli
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and Singh, Ungh and Singh (ITIO) ob
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Table 5-6-1 Fungi developing on Inc
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4 cr ic %-C " loo R. V Put f+ 0 OV
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TABLE 596A Foodstore afterý one ye
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1 FIGURE 5.6-3. Fungi developing on
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A . - X. '.. p ". 2 Xylaria . x. K
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N p ir
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PLATE 5.6.5. Soil plastered over in
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Discussion There was very little fu
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(1) xylaria nIqri]2ex Known ýrm Af
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Sordarin f1micala and Epicoccum nip
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The appcarance of the foodstore aft
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all species of termitest and Smay b
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loottbmley mul Fuller 1921, Trinerv
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from the wound and unworked soil fr
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Discussion The. soil freshly worked
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P. b44 >d 4 * 9 6ý a to b-ä- bo.
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Comparing the results. of both sets
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Discussion DLfferent ruggostions ha
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gastric juice so that It became a m
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5.8.1 INTRODMTION 5,11 VAIMING TECH
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1 --) D .1 7 8 270a FIGURE 5.8.1. W
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mean number of fungi 25 2C Washwate
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and TrIchoderma Are usually isolate
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6.1 MGZ IN SOILS, 6.1*1 FLTML POPUL
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u c NSD u T5 n TV **o m T!; NSD - 0
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TOM 6.1.4 Siodlarities In fungal sp
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was from a similar area althouoh wi
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0-5 ". 5-50 0-5 Pit A 5-25 2!; -50
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horizons of the soil (Swift 1976),
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plates to'datermine the generaj ran
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1 ri e c: 1 f3 &2 1 cr M 1 n tD n W
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Dizcufý. Asion The results show th
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6*2*2 ''EIASIDICCARP PRODUCTION IN
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296. Termit2=ps microcarpupq from C
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Fit 4 "0 w 00 6o ý; &I mP rA C: 4
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a 9 9 9 In 10 . 0% 61 06 ic e f* 32
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Discussion (1) Association between
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in Table 6.2.7 miy be Indorrects If
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which-aro 2-4 cm in diameter and di
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temperature In tile rAiny season rw
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OLUYrL. n SEVEN WE MYSTOWGICAL MIS
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i w Owl' " p 0 li c vi %A t" S 9 ,
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TABLS 7-1*6 Hoisture contents of my
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cmd In maintained around 93-99% (Il
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7.2.1 ýMIODS, 7.2 I! H The rAi of
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7.2-3 ]DISCUSSION Tho fungus combs,
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7-3-1 INTRODUCTION 7.3 LIGNIN DDGRA
Page 349 and 350: (b) soft rot, fungi. Under very moi
Page 351 and 352: 7-3-2- )ODIODS (1) Red cabbage extr
Page 353 and 354: TABLE 7-3-3 Reaction of TermitVycom
Page 355 and 356: The reactions did not vary In any c
Page 357 and 358: 7.4.1 INTRODUCTION 7.4 CELLULOSE DW
Page 359 and 360: the solution was read at 595 no aga
Page 361 and 362: 0 :1 1 m 1 JAN 5 k*O 10 ýe ý tv p
Page 363 and 364: - «ý 4e _e %, >ýý . *- A. 0ý I
Page 365 and 366: enz, yme production are affected by
Page 367 and 368: ut In general the ccab in too acidi
Page 369 and 370: All those substancea are therefore
Page 371 and 372: I RR I. fD a) 00 www 99 + W. m 4 ý
Page 373 and 374: 9 2 3 a W. c 5 2 0 Z
Page 375 and 376: l I r. * t+ bd. n tt o id. 1 9 p th
Page 377 and 378: Temlt2rm7ces, appears to be unusual
Page 379 and 380: 7-6 MINERAL CbNTr., NT'oF taimmmiT
Page 381 and 382: FIGURE 7.6.1. Amount of nitrogen in
Page 383 and 384: 0 :s-w w2 ooý. "I 0 I q+ 0) 1A r,
Page 385 and 386: 7-6*3 DISCUSSION Nitro2en in genera
Page 387 and 388: needed to degrade uric acid nitroge
Page 389 and 390: on comparing the nutrient content o
Page 391 and 392: 811 =MITOMYCES IN CULTURE Termit=cp
Page 393 and 394: when they left the-nesto whereas in
Page 395 and 396: workers with a lower nitrogen requi
Page 397 and 398: 8*4 SIMMIOSIS BETW M- X? 4SMTS AND
Page 399: Iý8.5 EVOLUTION OF ME SYMOSIS Tito
Page 403 and 404: APPENDICES 376.
Page 405 and 406: POTATO DEXTROSE AGAR (PDA) water 11
Page 407 and 408: APPENDIX 2 MILTONS nUID Miltons ste
Page 409 and 410: 0. obscuriceRs (Wasmann) 0. patruus
Page 411 and 412: Lactarius Pers. ex Gray Lentrn-us c
Page 413 and 414: APPENDIX 5. STATISTICAL METHODS MEA
Page 415 and 416: significance was tested at p- o, o5
Page 417 and 418: (4) (5) ý6) SOURCE OF VARTATION DE
Page 419 and 420: STUDENTS t-TEIST. COMPARISON OF. IM
Page 421 and 422: REFERENCES ABO-1alATWA N. (1977). N
Page 423 and 424: *BUTCHER (1966). Cited by Ka'a"rik
Page 425 and 426: DESAI A. J. and PANDEY S. N. (1971)
Page 427 and 428: CRAY T, R, G. and WILL1AMS S. T. (1
Page 429 and 430: JOHNSON L. F. and CURL E. A. (1972)
Page 431 and 432: MANDELS M. and 'REESE H. T. (1965).
Page 433 and 434: OTIENO N. C. (1964). Contributions
Page 435 and 436: RUELLE J. E. (1970). A reviniqn of
Page 437 and 438: THORNTON R, H, (1960). Growth of fu
Page 439: WOOD T. G. and OHIAGU C, E. (1976).
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